Prof. Young-Wan Choi Profile

Prof. Young-Wan Choi

at Chung-Ang Univ

SPIE Involvement:

Author

Publications (103)

Proceedings Article | 13 March 2024 Poster + Paper

Multi-focal lens holographic optical element-based waveguide-type display for extended depth of field

Seong-Hyeon Cho, Jae-Sang Lee, Woo June Choi, Young-Wan Choi

Proceedings Volume 12910, 129100M (2024) https://doi.org/10.1117/12.3002544

KEYWORDS: Holographic optical elements, Augmented reality, Depth of field, Holographic displays, Waveguides, Photomasks, Head-mounted displays

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Proceedings Article | 15 March 2023 Poster + Paper

Optical switch combined Raman spectroscopy for rapid SERS measurements

Seung-Jin Lee, Jae-Sang Lee, Young-Wan Choi, Woo June Choi

Proceedings Volume 12363, 1236307 (2023) https://doi.org/10.1117/12.2647230

KEYWORDS: Raman spectroscopy, Surface enhanced Raman spectroscopy, Optical switching, Signal detection, Raman scattering

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Proceedings Article | 14 March 2023 Poster + Paper

Compact imaging system based on multi-variable focal lens system in AR display

Jae-Sang Lee, Seong-Hyeon Cho, Seung-jin Lee, Woo June Choi, Young-Wan Choi

Proceedings Volume 12443, 124430F (2023) https://doi.org/10.1117/12.2648207

KEYWORDS: Augmented reality, Imaging systems, Lenses, Numerical simulations, Depth of field, Image sharpness, Image resolution, Head-mounted displays, Fourier transforms, Spatial light modulators

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SPIE Journal Paper | 27 May 2022

Multi-variable focal lens system for extended depth of field in augmented reality display

Jae-Sang Lee, Su-Jin Jeon, Yong-Jin Kim, Hyung-Soo Kim, Woo June Choi, Young-Wan Choi

OE, Vol. 61, Issue 05, 053102, (May 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.5.053102

KEYWORDS: Augmented reality, Eye, Focus stacking, Autoregressive models, Projection systems, CCD cameras, Optical engineering, Visualization, LCDs, Image resolution

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Proceedings Article | 25 February 2020 Paper

Fabrication of optical waveguide using a non-contact printing technique

Geum-Yoon Oh, Hyungchan Kim, Jeong Beom Ko, Hyeon Beom Kim, Hyun Ko, Young-Wan Choi

Proceedings Volume 11283, 1128323 (2020) https://doi.org/10.1117/12.2545317

KEYWORDS: Waveguides, Printing, Signal attenuation, Fabrication, Optics manufacturing, Polymers, Light sources, Sensors, Polymer multimode waveguides

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Proceedings Article | 4 March 2019 Paper

Analysis of regular polygonal ring resonator based on multi-mode waveguide

Sun-Ho Kim, Dohyun Kim, Su-Jin Jeon, Eudum Kim, Jae-Sang Lee, Young-Wan Choi

Proceedings Volume 10921, 109211L (2019) https://doi.org/10.1117/12.2506586

KEYWORDS: Resonators, Waveguides, Reflectivity, Sensors, Refractive index, Polymers

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Proceedings Article | 4 March 2019 Paper

Enhancement of sensitivity in hexagonal ring resonator using localized surface plasmon resonance for bio-chemical sensors

Do-Hyun Kim, Sun-Ho Kim, Su-Jin Jeon, Eudum Kim, Jae-Sang Lee, Young-Wan Choi

Proceedings Volume 10921, 109211M (2019) https://doi.org/10.1117/12.2506595

KEYWORDS: Resonators, Sensors, Refractive index, Brain-machine interfaces, Surface plasmons, Nanoparticles, Waveguides, Metals, Resonance enhancement, Mirrors

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Proceedings Article | 23 February 2018 Presentation + Paper

Analysis of the rectangular resonator with butterfly MMI coupler using SOI

Sun-Ho Kim, Jun-Hee Park, Eudum Kim, Su-Jin Jeon, Ji-Hoon Kim, Young-Wan Choi

Proceedings Volume 10526, 1052613 (2018) https://doi.org/10.1117/12.2288093

KEYWORDS: Resonators, Waveguides, Silicon, Optical resonators, Biosensors, Refractive index, Finite-difference time-domain method

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Proceedings Article | 14 February 2018 Paper

Highly sensitive method of temperature sensing by using heterodyne detection

Eudum Kim, Sun-Ho Kim, Jun-Hee Park, Su-Jin Jeon, Ji-Hoon Kim, Mi Jung, Young-Wan Choi

Proceedings Volume 10551, 105510N (2018) https://doi.org/10.1117/12.2286836

KEYWORDS: Temperature metrology, Heterodyning, Signal detection, Temperature sensors, Spectrum analysis, Tunable lasers, Refractive index, Electronics engineering

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Proceedings Article | 23 February 2017 Paper

Biosensing characteristics of InAs nanowire transistors grown by MOCVD

Doo Gun Kim, Jeongwoo Hwang, Seon Hoon Kim, Hyun Chul Ki, Tae Un Kim, Jae Cheol Shin, Young Wan Choi

Proceedings Volume 10114, 1011416 (2017) https://doi.org/10.1117/12.2253637

KEYWORDS: Nanowires, Indium arsenide, Metalorganic chemical vapor deposition, Biosensing, Transistors, Doping, Silicon, Semiconducting wafers, Scanning electron microscopy, Silica

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Proceedings Article | 22 February 2017 Paper

Analysis of SiNx TIR mirror for polygonal ring resonator sensor structure

Jun-Hee Park, Myung-Gi Ji, Su-Jin Jeon, Ji-Hoon Kim, Young-Wan Choi

Proceedings Volume 10098, 100981M (2017) https://doi.org/10.1117/12.2250486

KEYWORDS: Mirrors, Resonators, Waveguides, Sensors, Silicon, Brain-machine interfaces, Chemical fiber sensors, Cladding, Silica, Etching, Reflectivity, Finite-difference time-domain method, Refractive index

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Proceedings Article | 20 February 2017 Paper

Analysis on frequency response of trans-impedance amplifier (TIA) for signal-to-noise ratio (SNR) enhancement in optical signal detection system using lock-in amplifier (LIA)

Ji-Hoon Kim, Su-Jin Jeon, Myung-Gi Ji, Jun-Hee Park, Young-Wan Choi

Proceedings Volume 10107, 1010713 (2017) https://doi.org/10.1117/12.2250731

KEYWORDS: Signal to noise ratio, Signal detection, Optical amplifiers, Interference (communication), Telecommunications, Modulation, Sensors, Linear filtering, Capacitors, Cognitive informatics, Optical sensors, Signal processing, Optical design

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SPIE Journal Paper | 19 August 2016

Localized surface plasmon resonance in two-dimensional silver nanodot array fabricated using nanoporous alumina mask for chemical sensor platform

Mi Jung, Myung-Gi Ji, Tae-Ryong Kim, Cheol-Hwee Shim, Seok Lee, Deokha Woo, Young-Wan Choi

OE, Vol. 55, Issue 08, 087107, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.8.087107

KEYWORDS: Aluminum, Silver, Glasses, Surface plasmons, Nanolithography, Metals, Sensors, Molecules, Chemical fiber sensors, Adsorption

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SPIE Journal Paper | 2 May 2016

Significantly enhanced sensitivity of surface plasmon resonance sensor with self-assembled metallic nanoparticles

Hong-Seung Kim, Byeong-Hyeon Lee, Geum-Yoon Oh, Tae-Kyeong Lee, Doo-Gun Kim, Tae-Ryong Kim, Young-Wan Choi

JNP, Vol. 10, Issue 02, 026012, (May 2016) https://doi.org/10.1117/12.10.1117/1.JNP.10.026012

KEYWORDS: Sensors, Nanoparticles, Surface plasmons, Silver, Resonance enhancement, Thin films, Refractive index, Particles, Reflectivity, Annealing

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Proceedings Article | 22 April 2016 Paper

Optical heterodyne detection for ultra-high Q micro-disk laser sensor

Myung-Gi Ji, Byung-Hee Son, Tae-Ryong Kim, Mi Jung, Hong-Seung Kim, Chil-Min Kim, Kwang Ryong Oh, Young-Wan Choi

Proceedings Volume 9727, 97271A (2016) https://doi.org/10.1117/12.2212466

KEYWORDS: Heterodyning, Sensors, Molecules, Molecular lasers, Biosensing, Microresonators, Optical testing, Spectrum analysis, Signal detection, Laser resonators, Vertical cavity surface emitting lasers

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Proceedings Article | 21 April 2016 Paper

Sensing characteristics of plasmonic structure based on transferring process of polystyrene nano-beads

Doo Gun Kim, Jeongwoo Hwang, Seon Hoon Kim, Hyun Chul Ki, Tae Un Kim, Jae Cheol Shin, Dae-Cheol Jeong, Seungwon Jeon, Hong-Seung Kim, Young-Wan Choi

Proceedings Volume 9884, 98842S (2016) https://doi.org/10.1117/12.2227468

KEYWORDS: Biosensing, Thin films, Ions, Glasses, Plasma etching, Chemical analysis

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Proceedings Article | 14 March 2016 Paper

Two-dimensional silver nanodot array fabricated using nanoporous alumina for a chemical sensor platform of localized surface plasmon resonance

M. Jung, T.-R. Kim, M.-G. Ji, S. Lee, D. Woo, Y.-W. Choi

Proceedings Volume 9759, 975905 (2016) https://doi.org/10.1117/12.2212003

KEYWORDS: Metals, Silver, Surface plasmons, Nanostructures, Nanolithography, Sensors, UV-Vis spectroscopy, Glasses, Aluminum, Fabrication

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Proceedings Article | 4 March 2016 Paper

Enhancement of effective quality-factor using asymmetric Mach-Zehnder interferometer with ring resonator for optical bio and chemical sensor

Tae-Ryong Kim, Tae-Kyeong Lee, Myung-Gi Ji, Hong-Seung Kim, Guem-Yoon Oh, Byung-Hee Son, Doo Gun Kim, Mi Jung, Young-Wan Choi

Proceedings Volume 9742, 97421J (2016) https://doi.org/10.1117/12.2212334

KEYWORDS: Mach-Zehnder interferometers, Resonators, Silica, Optoelectronic devices, Waveguides, Chemical fiber sensors, Integrated optics, Biomedical optics, Biological and chemical sensing, Cladding, Sensors, Semiconductors, Signal attenuation

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Proceedings Article | 3 March 2016 Paper

Analysis of position error by time constant in read-out resistive network for gamma-ray imaging detection system

Su-Jin Jeon, Chang-In Park, Byung-Hee Son, Mi Jung, Teak-Jin Jang, Chun-Sik Lee, Young-Wan Choi

Proceedings Volume 9751, 975116 (2016) https://doi.org/10.1117/12.2212515

KEYWORDS: Photonic devices, Error analysis, Gamma ray imaging, Imaging systems, Photomultipliers, Sensors, Capacitance, Resistors, Optoelectronic devices, Chromium, Gamma radiation, Resistance

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Proceedings Article | 3 March 2016 Paper

Frequency range selection method of trans-impedance amplifier for high sensitivity lock-in amplifier used in the optical sensors

Chang-In Park, Su-Jin Jeon, Nam-Pyo Hong, Young-Wan Choi

Proceedings Volume 9751, 975113 (2016) https://doi.org/10.1117/12.2212415

KEYWORDS: Interference (communication), Optical amplifiers, Signal to noise ratio, Optical sensors, Signal detection, Modulation, Diodes, Sensors, Semiconductor lasers, Amplifiers

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Proceedings Article | 16 March 2015 Paper

Ultra-high sensitivity optical biosensor based on Vernier effect in triangular ring resonators (TRRs) with SPR

Tae-Ryong Kim, Hong-Seung Kim, Jun Li, Geum-Yoon Oh, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 9357, 93571A (2015) https://doi.org/10.1117/12.2078923

KEYWORDS: Mirrors, Resonators, Biosensors, Sensors, Finite-difference time-domain method, Optical biosensors, Gold, Surface plasmons, Prisms, Waveguides

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Proceedings Article | 14 March 2015 Paper

Design of hybrid optical delay line for automotive radar test system

Byung-Hee Son, Kwang-Jin Kim, Ye Li, Chang-In Park, Young-Wan Choi

Proceedings Volume 9362, 936212 (2015) https://doi.org/10.1117/12.2079132

KEYWORDS: Hybrid optics, Radar, Transceivers, Modulation, Optical design, Optical fibers, Radio optics, Switches, Feedback signals, Automotive electronic systems

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Proceedings Article | 13 March 2015 Paper

Surface plasmon resonance (SPR) sensor using 2ω harmonic lock-in detection

Chang-In Park, Kwang-Jin Kim, Chang-gun Kim, Nam-Pyo Hong, Young-Wan Choi

Proceedings Volume 9369, 93690C (2015) https://doi.org/10.1117/12.2079043

KEYWORDS: Signal detection, Sensors, Interference (communication), Optical amplifiers, Surface plasmons, Linear filtering, Optical biosensors, Switches, Refractive index, Hybrid circuits

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Proceedings Article | 27 February 2015 Paper

Total internal reflection mirror-based ultra-sensitive triangular ring resonator sensor on the surface plasmon resonance condition

Hong-Seung Kim, Tae-Ryong Kim, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 9365, 93651D (2015) https://doi.org/10.1117/12.2078902

KEYWORDS: Resonators, Mirrors, Sensors, Reflection, Surface plasmons, Metals, Finite-difference time-domain method, Cladding, Biosensors, Refractive index

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Proceedings Article | 8 February 2015 Paper

Plasmonic characteristics of metallic nano-ring structures

Doo Gun Kim, Byung Gue Jung, Seon Hoon Kim, Hyun Chul Ki, Tae Un Kim, Hwe Jong Kim, Hong-Seung Kim, Young Wan Choi

Proceedings Volume 9370, 93701B (2015) https://doi.org/10.1117/12.2078846

KEYWORDS: Gold, Silver, Reflectivity, Metals, Sensors, Plasma etching, Finite-difference time-domain method, Plasmonics, Glasses, Surface plasmons

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Proceedings Article | 8 March 2014 Paper

An integrated CMOS detection system for optical short-pulse

Chang-Gun Kim, Nam-Pyo Hong, Young-Wan Choi

Proceedings Volume 8989, 89890I (2014) https://doi.org/10.1117/12.2038931

KEYWORDS: Resistors, Optical amplifiers, Capacitors, CMOS sensors, Signal detection, Sensors, Avalanche photodetectors, Amplifiers, Semiconductors, Integrated circuits

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Proceedings Article | 7 March 2014 Paper

Analysis of hybridized surface plasmon resonance sensor with metallic nanoparticles for high sensitivity

Byeong-Hyeon Lee, Geum-Yoon Oh, Hong-Seung Kim, Tae-Kyeong Lee, Doo Gun Kim, Young-Wan Choi

Proceedings Volume 8980, 898010 (2014) https://doi.org/10.1117/12.2039141

KEYWORDS: Silver, Sensors, Surface plasmons, Reflectivity, Refractive index, Cladding, Dielectrics, Finite-difference time-domain method, Particles, Nanoparticles

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Proceedings Article | 1 February 2014 Paper

Opto-electrical predistortion method using nonlinearity of schottky diode for radio-over-fiber systems

Byung-Hee Son, Kwang-Jin Kim, Ye Li, Young-Wan Choi

Proceedings Volume 9007, 90070C (2014) https://doi.org/10.1117/12.2039310

KEYWORDS: Diodes, Radio over Fiber, Intermodulation, Modulation, Nonlinear optics, Semiconductor lasers, Signal attenuation, Distortion, Transmitters, Signal detection

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Proceedings Article | 14 March 2013 Paper

Compact polarization rotator based on slotted optical waveguide with buffer layer using surface plasmon polariton

Hong-Seung Kim, Tae-Kyeong Lee, Geum-Yoon Oh, Byeong-Hyeon Lee, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 8619, 861923 (2013) https://doi.org/10.1117/12.2005135

KEYWORDS: Polarization, Waveguides, Metals, Silicon, Wave propagation, Plasmonics, Surface plasmon polaritons, Silica, Surface plasmons, Integrated optics

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Proceedings Article | 14 March 2013 Paper

Design of high sensitive surface plasmon resonance sensor with metallic nano-structure

Byeong-Hyeon Lee, Geum-Yoon Oh, Hong-Seung Kim, Tae-Kyeong Lee, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 8619, 86191B (2013) https://doi.org/10.1117/12.2004813

KEYWORDS: Sensors, Silver, Surface plasmons, Reflectivity, Refractive index, Particles, Metals, Finite-difference time-domain method, Dielectrics, Thin films

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Proceedings Article | 13 March 2013 Paper

Integrated surface plasmon resonance resonator using silicon on insulator

Geum-Yoon Oh, Doo-Gun Kim, Seon Hoon Kim, Hyun Chul Ki, Tae Un Kim, Hong-Seung Kim, Tae-Kyeong Lee, Byeong-Hyeon Lee, Young-Wan Choi

Proceedings Volume 8627, 862719 (2013) https://doi.org/10.1117/12.2004946

KEYWORDS: Mirrors, Resonators, Gold, Sensors, Refractive index, Phase shifts, Surface plasmons, Silicon, Biosensors, Transmittance

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Proceedings Article | 29 February 2012 Paper

Analysis of 1D-like photonic crystal microcavity sensor using surface plasmon resonance effect

Hong-Seung Kim, Tae-Kyeong Lee, Geum-Yoon Oh, Byeong-Hyeon Lee, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 8255, 825528 (2012) https://doi.org/10.1117/12.909611

KEYWORDS: Sensors, Optical microcavities, Metals, Photonic crystals, Refractive index, Surface plasmons, Analytical research, Finite-difference time-domain method, Reflection, Titanium dioxide

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Proceedings Article | 22 February 2012 Paper

The surface plasmon resonance sensor with the metallic nanostructure for biosensing

Byeong-Hyeon Lee, Geum-Yoon Oh, Hong-Seung Kim, Tae-Kyeong Lee, Seon-Hoon Kim, Hyun-Chul Ki, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 8269, 82692C (2012) https://doi.org/10.1117/12.908245

KEYWORDS: Surface plasmons, Silver, Sensors, Dielectrics, Refractive index, Metals, Biosensing, Finite-difference time-domain method, Electrons, Particles

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Proceedings Article | 9 February 2012 Paper

Direct intensity modulation of three-guide coupled rectangular ring laser having bidirectional lasing characteristics

Doo Gun Kim, Seon Hoon Kim, Hyun Chul Ki, Won-Gun Jang, Dong-Kil Lee, Hyo Jin Kim, Hwe Jong Kim, Geum-Yoon Oh, Young-Wan Choi, Nadir Dagli

Proceedings Volume 8277, 82771Z (2012) https://doi.org/10.1117/12.908118

KEYWORDS: Modulation, Waveguides, Mirrors, Continuous wave operation, Resonators, Etching, Output couplers, Laser resonators, Laser applications, Photonic integrated circuits

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Proceedings Article | 2 February 2012 Paper

Integrated surface plasmon resonance array sensor using semiconductor optical amplifier

Geum-Yoon Oh, Doo-Gun Kim, Hong-Seung Kim, Tae-Kyeong Lee, Byeong-Hyeon Lee, Young-Wan Choi

Proceedings Volume 8264, 82641B (2012) https://doi.org/10.1117/12.907860

KEYWORDS: Sensors, Waveguides, Refractive index, Mirrors, Reflectivity, Surface plasmons, Finite-difference time-domain method, Semiconductor optical amplifiers, Plasmonic sensors, Light sources

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Proceedings Article | 2 February 2012 Paper

Analysis of total reflection mirror based on horizontal slot waveguide

Tae-Kyeong Lee, Hong-Seung Kim, Geum-Yoon Oh, Byeong-Hyeon Lee, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 8264, 82641E (2012) https://doi.org/10.1117/12.909595

KEYWORDS: Waveguides, Mirrors, Finite-difference time-domain method, Interfaces, Reflectivity, Etching, Silicon, Resonators, Integrated optics, Silica

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Proceedings Article | 1 June 2011 Paper

Optical characteristics of triangular microresonator with long evanescent field on the total internal reflection mirror

Doo Gun Kim, Seon Hoon Kim, Hyun Chul Ki, Won-Gun Jang, Dong-Kil Lee, Hyo Jin Kim, Tae Un Kim, Hwe Jong Kim, Geum-Yoon Oh, Young Wan Choi

Proceedings Volume 8069, 806914 (2011) https://doi.org/10.1117/12.886531

KEYWORDS: Mirrors, Resonators, Refractive index, Waveguides, Brain-machine interfaces, Sensors, Polarization, Optical testing, Mineralogy, Microresonators

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Proceedings Article | 1 March 2011 Paper

Analysis of triangular ring resonator using microcavity SOI slot waveguides

Tae-Kyeong Lee, Hong-Seung Kim, Geum-Yoon Oh, Young-Wan Choi

Proceedings Volume 7946, 794623 (2011) https://doi.org/10.1117/12.874584

KEYWORDS: Waveguides, Mirrors, Resonators, Refractive index, Interfaces, Silica, Silicon, Optical filters, Cladding, Optical microcavities

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Proceedings Article | 21 February 2011 Paper

Polarization characteristics of plasmonics-based optical waveguides for polarization rotation

Hong-Seung Kim, Tae-Kyeong Lee, Geum-Yoon Oh, Young-Wan Choi

Proceedings Volume 7933, 79332A (2011) https://doi.org/10.1117/12.874411

KEYWORDS: Polarization, Waveguides, Metals, Silicon, Surface plasmons, Wave propagation, Light wave propagation, Silicon films, Silica, Thin films

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Proceedings Article | 17 January 2011 Paper

Analysis of surface plasmon resonance triangular-resonator sensor

Geum-Yoon Oh, Doo-Gun Kim, Hong-Seung Kim, Tae-Kyeong Lee, Young-Wan Choi

Proceedings Volume 7941, 794118 (2011) https://doi.org/10.1117/12.874582

KEYWORDS: Resonators, Mirrors, Brain-machine interfaces, Waveguides, Sensors, Metals, Reflectivity, Surface plasmons, Finite-difference time-domain method, Interfaces

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SPIE Journal Paper | 1 May 2010

Novel biosensor based on a stadium-shaped ring structure with a dual photonic crystal microcavity

Hong Seung Kim, Geum-Yoon Oh, Young-Wan Choi

OE, Vol. 49, Issue 05, 054401, (May 2010) https://doi.org/10.1117/12.10.1117/1.3421551

KEYWORDS: Photonic crystals, Biosensors, Optical microcavities, Waveguides, Resonators, Sensors, Resonance enhancement, Refractive index, Spectral resolution, Optical engineering

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Proceedings Article | 26 February 2010 Paper

An integrated CMOS dual lock-in amplifier for optoelectronic antigens detection

Nam-Pyo Hong, Do-Gyun Kim, In-Il Jung, Ho-Hyun Son, Tae-Kyung Chung, Young-ki Choi, Young-Wan Choi

Proceedings Volume 7572, 75720J (2010) https://doi.org/10.1117/12.841860

KEYWORDS: Amplifiers, Signal detection, Sensors, Linear filtering, Optical amplifiers, Optoelectronics, Interference (communication), CMOS sensors, Signal to noise ratio, Phase shifts

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Proceedings Article | 26 February 2010 Paper

All optical logic gates using active plasmonic device block

Geum-Yoon Oh, Doo-Gun Kim, Hong-Seung Kim, Young-Wan Choi

Proceedings Volume 7597, 75971U (2010) https://doi.org/10.1117/12.841595

KEYWORDS: Zinc oxide, Waveguides, Metals, Refractive index, Active plasmonics, Logic devices, Finite-difference time-domain method, Nonlinear optics, Light sources, Surface plasmons

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Proceedings Article | 17 February 2010 Paper

Analysis of all optical logic gate based on photonic crystals multimode interference

Hong-Seung Kim, Tae-Kyung Lee, Geum-Yoon Oh, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 7606, 76061F (2010) https://doi.org/10.1117/12.841745

KEYWORDS: Logic devices, Brain-machine interfaces, Waveguides, Photonic crystals, Multimode interference devices, Silicon, Switching, Optical circuits, Logic, Nonlinear optics

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Proceedings Article | 23 January 2010 Paper

Cancellation of the IMD3 and IMD5 using opto-electrical predistortion optical transmitter for radio-over-fiber systems

Tae-Kyeong Lee, Yon-Tae Moon, Hong-Seung Kim, Young-Wan Choi

Proceedings Volume 7620, 76200A (2010) https://doi.org/10.1117/12.841749

KEYWORDS: Intermodulation, Modulation, Semiconductor lasers, Transmitters, Radio optics, Radio over Fiber, Signal detection, Nonlinear optics, Phase shifts, Telecommunications

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Proceedings Article | 23 January 2010 Paper

Optical characteristics of surface plasmon resonance based on ZnO and metallic nanograting structures

Doo Gun Kim, Seon Hoon Kim, Hyun Chul Ki, Hyo Jin Kim, Hang Ju Ko, Myung-Soo Han, Swook Hann, Tae Un Kim, Hwe Jong Kim, Geum-Yoon Oh, Young Wan Choi

Proceedings Volume 7608, 76081H (2010) https://doi.org/10.1117/12.841444

KEYWORDS: Zinc oxide, Surface plasmons, Sensors, Finite-difference time-domain method, Dielectrics, Gold, Metals, Prisms, Reflectivity, Resonance enhancement

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Proceedings Article | 24 February 2009 Paper

Analysis of rectangular ring resonator sensor with photonic crystal microcavity

Hong-Seung Kim, Doo-Gun Kim, Geum-Yoon Oh, Young-Wan Choi

Proceedings Volume 7211, 72110V (2009) https://doi.org/10.1117/12.808902

KEYWORDS: Resonators, Waveguides, Sensors, Mirrors, Photonic crystals, Directional couplers, Optical microcavities, Finite-difference time-domain method, Dielectrics, Transmittance

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Proceedings Article | 10 February 2009 Paper

Improved sensitivity of portable bio-sensor systems using lock-in detection method

Ho-Hyun Son, In-Il Jung, Doo Gun Kim, Do-Gyun Kim, Young-Wan Choi

Proceedings Volume 7219, 72190N (2009) https://doi.org/10.1117/12.809025

KEYWORDS: Signal detection, Interference (communication), Linear filtering, Biosensors, Switches, Sensors, Modulation, Signal to noise ratio, Photodetectors, Amplifiers

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Proceedings Article | 10 February 2009 Paper

Analysis of surface plasmon resonance with Goos-Hanchen shift using FDTD method

Geum-Yoon Oh, Doo-Gun Kim, Hong-Seung Kim, Young-Wan Choi

Proceedings Volume 7218, 72180J (2009) https://doi.org/10.1117/12.809006

KEYWORDS: Finite-difference time-domain method, Dielectrics, Surface plasmons, Metals, Phase shifts, Interfaces, Sensors, Electrons, Reflectivity, Optical properties

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Proceedings Article | 26 January 2009 Paper

Linearity enhancement of uncooled DFB laser diode using opto-electronic predistortion method for radio-over-fiber systems

Tae-Kyeong Lee, Yon-Tae Moon, Young-Wan Choi

Proceedings Volume 7234, 72340F (2009) https://doi.org/10.1117/12.808993

KEYWORDS: Semiconductor lasers, Signal detection, Attenuators, Modulation, Phase shifts, Intermodulation, Signal generators, Radio over Fiber, Distortion, Transmitters

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Proceedings Article | 12 February 2008 Paper

Bio-signal processing using a novel lock-in detection technique for the portable bio-optical systems

In-Il Jung, Doo Gun Kim, Woon-Kyung Choi, Do-Gyun Kim, Young-Wan Choi

Proceedings Volume 6897, 689713 (2008) https://doi.org/10.1117/12.762998

KEYWORDS: Signal detection, Interference (communication), Linear filtering, Switches, Infrared radiation, Light emitting diodes, Signal to noise ratio, Electronic filtering, Infrared detectors, Optical amplifiers

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Proceedings Article | 12 February 2008 Paper

Wavelength-dependence transmission experiment of feedforward optical transmitter using light injection technique in WDM/SCM radio-over-fiber system

Yon Tae Moon, Jun Woo Jang, Woon-Kyung Choi, Young-Wan Choi

Proceedings Volume 6897, 689710 (2008) https://doi.org/10.1117/12.762024

KEYWORDS: Transmitters, Radio optics, Distortion, Particle filters, Intermodulation, Semiconductor lasers, Wavelength division multiplexing, Radio over Fiber, Light, Phase shifts

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Proceedings Article | 12 February 2008 Paper

Analysis of a novel micro surface plasmon resonance sensor with attenuated total reflection mirror

Geum-Yoon Oh, Doo-Gun Kim, Woon-Kyung Choi, Young-Wan Choi

Proceedings Volume 6897, 68970A (2008) https://doi.org/10.1117/12.762071

KEYWORDS: Waveguides, Finite-difference time-domain method, Sensors, Polymers, Polymer multimode waveguides, Gold, Surface plasmons, Mirrors, Sensing systems, Prisms

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Proceedings Article | 29 January 2008 Paper

Three-guide coupled rectangular ring lasers with total internal reflection mirrors

Doo Gun Kim, Woon Kyung Choi, In-Il Jung, Geum-Yoon Oh, Young Wan Choi, Jong Chang Yi, Nadir Dagli

Proceedings Volume 6909, 69090D (2008) https://doi.org/10.1117/12.762030

KEYWORDS: Waveguides, Mirrors, Resonators, Output couplers, Laser resonators, Continuous wave operation, Semiconductor lasers, Etching, Directional couplers, Microrings

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Proceedings Article | 9 February 2007 Paper

Novel bio-signal processing technique with hybrid bio-system integrated with optical microcavity ring resonator

In-Il Jung, Doo Gun Kim, Woon-Kyung Choi, Do-Gyun Kim, Young Wan Choi

Proceedings Volume 6476, 64760X (2007) https://doi.org/10.1117/12.701552

KEYWORDS: Resonators, Signal to noise ratio, Refractive index, Waveguides, Optical microcavities, Sensors, Biosensors, Signal detection, Data acquisition, LCDs

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Proceedings Article | 9 February 2007 Paper

Micro ring cavity resonator incorporating total internal reflection mirrors

Doo Gun Kim, Woon Kyung Choi, Young Wan Choi, Jong Chang Yi, Youngchul Chung, Nadir Dagli

Proceedings Volume 6475, 64750Y (2007) https://doi.org/10.1117/12.700355

KEYWORDS: Mirrors, Resonators, Brain-machine interfaces, Waveguides, Cavity resonators, Photonic integrated circuits, Etching, Refractive index, Optical filters, Indium gallium arsenide

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Proceedings Article | 9 February 2007 Paper

Enhanced bandwidth of traveling-wave photodetector with asymmetric intrinsic region

Yon Tae Moon, Woon-Kyung Choi, Joon-Woo Jang, Young-Wan Choi, Seok Lee, Deok Ha Woo

Proceedings Volume 6471, 64711A (2007) https://doi.org/10.1117/12.699942

KEYWORDS: Microwave radiation, Photodetectors, Cladding, Waveguides, Refractive index, Indium gallium arsenide, Etching, Finite-difference time-domain method, Semiconducting wafers, Telecommunications

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Proceedings Article | 9 February 2007 Paper

Linear trans-impedance amplifier with functional active loads for analog optical communication systems

Do-Gyun Kim, Woon-Kyung Choi, Hyung-Won Kang, In-Il Jung, Young-Wan Choi

Proceedings Volume 6476, 64760G (2007) https://doi.org/10.1117/12.700000

KEYWORDS: Analog electronics, Telecommunications, Optical amplifiers, Optical communications, Transceivers, CMOS technology, Nonlinear optics, Molybdenum, Radio over Fiber, Optical circuits

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Proceedings Article | 7 February 2007 Paper

Demonstration of all optical logic gates by single/differential typed vertical cavity laser with depleted optical thyristor

Woon-Kyung Choi, Doo-Gun Kim, Yon-Tae Moon, Do-Gyun Kim, Hoseong Kim, Tae Kyung Chung, Young-Wan Choi, Kent Choquette, Seok Lee, Deok-Ha Woo

Proceedings Volume 6484, 64840B (2007) https://doi.org/10.1117/12.699599

KEYWORDS: Switching, Optical switching, Laser optics, Switches, Optical logic, Logic, Integrated optics, Mirrors, Logic devices, Resistors

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Proceedings Article | 3 October 2006 Paper

Broadband analog optical transmitter by feedforward compensation

Yon-Tae Moon, Joon-Jae Lee, Young-Seol Yun, Jun-Woo Jang, Young-Wan Choi

Proceedings Volume 6353, 63533V (2006) https://doi.org/10.1117/12.689001

KEYWORDS: Transmitters, Phase shifts, Distortion, Analog electronics, Semiconductor lasers, Optical amplifiers, Telecommunications, Photodiodes, Intermodulation, Signal generators

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Proceedings Article | 3 October 2006 Paper

Novel rate equation model using finite difference method in time domain

Do-Gyun Kim, Young-Wan Choi

Proceedings Volume 6353, 63533S (2006) https://doi.org/10.1117/12.688769

KEYWORDS: Modulation, Fused deposition modeling, Semiconductor lasers, Finite difference methods, Performance modeling, Photons, Tin, Transmitters, Signal analyzers, Analog electronics

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SPIE Journal Paper | 1 June 2006

Significantly enhanced fiber optic code-division multiple-access system using a novel optical decoder with an AND-gate logic element

Tae-Gu Kang, Young-Wan Choi

OE, Vol. 45, Issue 06, 065002, (June 2006) https://doi.org/10.1117/12.10.1117/1.2212829

KEYWORDS: Fiber optics, Telecommunications, Logic devices, Signal processing, Receivers, Optical engineering, Channel projecting optics, Signal detection, Binary data, Optical correlators

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Proceedings Article | 3 March 2006 Paper

The analysis of optical signal transmission characteristics in laser diodes

Do-Gyun Kim, Young-Seol Yoon, Kyung-Min Kim, Joon-Jae Lee, Young-Wan Choi

Proceedings Volume 6124, 61241F (2006) https://doi.org/10.1117/12.645858

KEYWORDS: Modulation, Fused deposition modeling, Semiconductor lasers, Signal analyzers, Photons, Tin, Telecommunications, Finite difference methods, Optical communications, Distortion

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Proceedings Article | 3 March 2006 Paper

A 2.5 Gb/s CMOS optical transceiver with 10 : 1 serializer using clock generation and delayed data topology

Kyung-Min Kim, Hyung-Won Kang, Do-Gyun Kim, Yon-Tae Moon, Young-Wan Choi

Proceedings Volume 6124, 61241G (2006) https://doi.org/10.1117/12.645876

KEYWORDS: Clocks, Transmitters, Data conversion, Receivers, Transceivers, Optical design, Sensors, CMOS technology, Edge detection, Optical interconnects

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Proceedings Article | 6 December 2005 Paper

Micro/nano-scale integration of polymer optical wires and miniaturized photonic devices for optical printed circuit board (O-PCB) and VLSI photonic applications

El-Hang Lee, S. Lee, B. O, S. Park, K. Kim, Y. Kwon, I.-J. Chin, Y. Choi, S. Song

Proceedings Volume 6019, 60191J (2005) https://doi.org/10.1117/12.633968

KEYWORDS: Waveguides, Polymers, Integrated optics, Very large scale integration, Polymer multimode waveguides, Silicon, Mirrors, Photonic crystals, Ultraviolet radiation, Optical printed circuit boards

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Proceedings Article | 30 September 2005 Paper

Design, fabrication, and integration of micro/nano-scale optical waveguide arrays and devices for optical printed circuit board (O-PCB) and VLSI micro/nano-photonic application

El-Hang Lee, S. Lee, B. O, K. Kim, J. Kang, Y. Kwon, I.-J. Chin, Y. Choi, S. Song

Proceedings Volume 5956, 595602 (2005) https://doi.org/10.1117/12.614834

KEYWORDS: Waveguides, Polymers, Very large scale integration, Integrated optics, Photonics, Metals, Polymer multimode waveguides, Optical printed circuit boards, Switching, Computing systems

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Proceedings Article | 30 August 2005 Paper

Fabrication and integration of micro/nano-scale optical wire circuit arrays and devices for high-speed and compact optical printed circuit board (O-PCB) and VLSI photonic applications

El-Hang Lee, S. Lee, B. O, S. Park, K. Kim, J. Kang, Y. Choi, S. Song

Proceedings Volume 5897, 589709 (2005) https://doi.org/10.1117/12.623506

KEYWORDS: Waveguides, Very large scale integration, Polymers, Photonic devices, Integrated optics, Optical interconnects, Metals, Silicon, Optical circuits, Optical arrays

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Proceedings Article | 7 July 2005 Paper

Fabrication and integration of micro/nano-scale photonic devices and optical waveguide arrays for optical printed circuit board (O-PCB) and VLSI photonic applications

El-Hang Lee, S. Lee, B. O, S. Park, K. Kim, J. Kang, Y. Choi

Proceedings Volume 5840, (2005) https://doi.org/10.1117/12.607909

KEYWORDS: Waveguides, Polymers, Silicon, Very large scale integration, Photonic devices, Multimode interference devices, Photonic crystals, Ultraviolet radiation, Polymer multimode waveguides, Directional couplers

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Proceedings Article | 4 April 2005 Paper

Fabrication and integration of micro/nano-scale polymer optical waveguides and devices for optical printed circuit board (O-PCB) application

El-Hang Lee, Seung Gol Lee, Beom Hoan O, Se Geun Park, Kyong Heon Kim, Jin Ku Kang, I. Chin, Y. K. Kwon, Young Wan Choi

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.591922

KEYWORDS: Waveguides, Polymers, Polymer multimode waveguides, Vertical cavity surface emitting lasers, Fluorine, Ultraviolet radiation, Mirrors, Very large scale integration, Photonic crystals, Photonics

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Proceedings Article | 25 March 2005 Paper

An electrical model of VCSEL as optical transmitter for optical printed circuit board

Do-Kyoon Kim, Young-Seol Yoon, Jin-Ho Choi, Kyung-Min Kim, Young-Wan Choi, Seok Lee

Proceedings Volume 5729, (2005) https://doi.org/10.1117/12.589968

KEYWORDS: Vertical cavity surface emitting lasers, Transmitters, Optical interconnects, Optical printed circuit boards, Circuit switching, Capacitance, Device simulation, Instrument modeling, Resistance, Data transmission

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Proceedings Article | 25 March 2005 Paper

Integration of polymer-based optical waveguide arrays and micro/nano-photonic devices for optical printed circuit board (O-PCB) application

El-Hang Lee, Seung Gol Lee, Beom Hoan O, Se-Geun Park, Kyong Heon Kim, Jin Ku Kang, Young Wan Choi

Proceedings Volume 5729, (2005) https://doi.org/10.1117/12.591902

KEYWORDS: Waveguides, Polymers, Mirrors, Polymer multimode waveguides, Vertical cavity surface emitting lasers, Very large scale integration, Optical arrays, Optical printed circuit boards, Microlens, Ultraviolet radiation

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Proceedings Article | 23 February 2005 Paper

Micro/nano-scale fabrication of integrated polymer optical wire circuit arrays for optical printed circuit board (O-PCB) application

El-Hang Lee, Seung Lee, Se Park, Kyong Kim, Jin Kang, In Chin, Y. Kwon, Young Choi

Proceedings Volume 5650, (2005) https://doi.org/10.1117/12.581833

KEYWORDS: Waveguides, Polymers, Integrated optics, Polymer multimode waveguides, Photonics, Very large scale integration, Phased array optics, Optical printed circuit boards, Telecommunications, Optical circuits

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Proceedings Article | 20 January 2005 Paper

Vertical-injection depleted optical thyristor laser diode with InGaAs/InGaAsP MQW structure

Woon-Kyung Choi, Doo-Gun Kim, Young-Wan Choi, Seok Lee, Deok Ha Woo, Young Tae Byun, Sun Ho Kim

Proceedings Volume 5628, (2005) https://doi.org/10.1117/12.576767

KEYWORDS: Switching, Semiconductor lasers, Waveguides, Laser optics, Telecommunications, Doping, Optical switching, Fused deposition modeling, Finite difference methods, Signal detection

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Proceedings Article | 20 January 2005 Paper

Nonlinearity of traveling-wave photodetector according to incident optical power

Yon-Tae Moon, Young-Seol Yun, Seong Hae Ok, Young-Wan Choi, Seok Lee

Proceedings Volume 5628, (2005) https://doi.org/10.1117/12.576715

KEYWORDS: Absorption, Photodetectors, Nonlinear optics, Microwave radiation, Waveguides, Interference (communication), Analog electronics, Cladding, Sensors, Signal detection

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Proceedings Article | 20 January 2005 Paper

Fabrication of traveling-wave-type electro-optic quantum dot modulator

Seong Hae Ok, Chang Wan Son, Sung Jin Kim, Young-Wan Choi, Seok Lee, Deok Ha Woo, Sun Ho Kim

Proceedings Volume 5628, (2005) https://doi.org/10.1117/12.576841

KEYWORDS: Quantum dots, Electrooptic modulators, Modulators, Waveguides, Modulation, Electro optics, Microwave radiation, Gallium arsenide, Electrodes, Gallium

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Proceedings Article | 10 January 2005 Paper

Optical printed circuit board (O-PCB) for VLSI micro/nano-photonic application

El-Hang Lee, S. Lee, B. O, S. Park, K. Kim, J. Kang, I. Chin, Y. Kwon, Y. Choi

Proceedings Volume 5623, (2005) https://doi.org/10.1117/12.566015

KEYWORDS: Waveguides, Very large scale integration, Polymers, Integrated optics, Polymer multimode waveguides, Fluorine, Photonic crystals, Photonics, Near field scanning optical microscopy, Optical printed circuit boards

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Proceedings Article | 25 July 2003 Paper

Reverse-biased characteristics of GaAs/AlGaAs depleted optical thyristor with low depletion voltage

Woon-Kyung Choi, Doo-Gun Kim, Young-Wan Choi, Seok Lee, Deokha Woo, Young Tae Byun, Jae Hun Kim, Sun-Ho Kim

Proceedings Volume 4986, (2003) https://doi.org/10.1117/12.478321

KEYWORDS: Switching, Doping, Fused deposition modeling, Finite difference methods, Electrons, Optoelectronics, Optical switching, Computer simulations, Gallium arsenide, Gallium

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Proceedings Article | 9 July 2003 Paper

Design of 2.5Gb/s CMOS optical transceiver array

Kyung-Jik Lee, Hee-Hyun Lee, Sang-Bong Lee, Young-Wan Choi

Proceedings Volume 4998, (2003) https://doi.org/10.1117/12.476543

KEYWORDS: Transceivers, Receivers, Modulation, Optical arrays, CMOS technology, Transistors, Optical amplifiers, Integrated optics, Positive feedback, Logic

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SPIE Journal Paper | 1 April 2003

Optical characteristics of PnpN optical thyristor operating at 1.55 um

Doo-Gun Kim, Hee-Hyun Lee, Woon-Kyung Choi, Jung-Jun Lee, Young-Wan Choi, Sang Bae Lee, Deokha Woo, Young Byun, Jung-Hee Kim, Sun-Ho Kim, N. Futakuchi, Yoshiaki Nakano

OE, Vol. 42, Issue 04, (April 2003) https://doi.org/10.1117/12.10.1117/1.1557160

KEYWORDS: Switching, Waveguides, Doping, Optical switching, Fused deposition modeling, Optoelectronics, Switches, Photonics, Optical communications, Nonlinear optics

Proceedings Article | 3 June 2002 Paper

Design of a 622Mb/s 16-channel CMOS optical transceiver array

Hee-Hyun Lee, Sung-Jae Jung, Heung-Soo Kim, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 4652, (2002) https://doi.org/10.1117/12.469556

KEYWORDS: Transceivers, Receivers, Modulation, Optical arrays, Optical amplifiers, Field effect transistors, CMOS technology, Sensors, Transistors, Fiber amplifiers

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Proceedings Article | 3 June 2002 Paper

40-Gb/s 4 x 10 array VCSEL driver in 0.35-mm CMOS technology

Hyung-Soo Kim, Sung-Jae Jung, Hee-Hyun Lee, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 4652, (2002) https://doi.org/10.1117/12.469570

KEYWORDS: Vertical cavity surface emitting lasers, Modulation, Optical interconnects, CMOS technology, Diodes, Device simulation, Free space, Data processing, Computing systems, Light sources

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Proceedings Article | 21 May 2002 Paper

Improved velocity mismatch in traveling-wave coplanar waveguide photodetector with thick ground-metal-line

Sang-Jun Yoon, Seong-Hae Ok, Young-Seol Yoon, Soon-Chel Kong, Young-Wan Choi

Proceedings Volume 4650, (2002) https://doi.org/10.1117/12.467670

KEYWORDS: Microwave radiation, Electrodes, Photodetectors, Finite-difference time-domain method, Waveguides, Signal attenuation, Maxwell's equations, Fourier transforms, Resistance, Wave propagation

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SPIE Journal Paper | 1 October 2001

Analysis of the higher order signals in fiber optic code-division multiple access networks using series coupler access encoder and series coupler access decoder

Tae-Gu Kang, Young-Wan Choi

OE, Vol. 40, Issue 10, (October 2001) https://doi.org/10.1117/12.10.1117/1.1397301

KEYWORDS: Computer programming, Signal detection, Fiber optics, Code division multiplexing, Electronic filtering, Optical engineering, Signal processing, Optical networks, Signal generators, Interference (communication)

Proceedings Article | 30 May 2001 Paper

Analysis and design of mushroom-type traveling-wave electroabsorption modulator using the finite difference time domain method

Seong-Hae Ok, Seung-Jin Lee, Jeong-Hoon Lee, Soon-Chel Kong, Doo-Gun Kim, Young-Wan Choi, Jae-Hun Kim, Seok Lee, Deok-ha Woo, Sun-Ho Kim

Proceedings Volume 4292, (2001) https://doi.org/10.1117/12.428028

KEYWORDS: Modulators, Microwave radiation, Finite-difference time-domain method, Waveguides, Electrodes, Optical modulators, Modulation, Quantum wells, Wave propagation, Phase velocity

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Proceedings Article | 16 May 2001 Paper

2.5-V,1-Gb/s/ch parallel optical receiver in 0.25-um CMOS technology

Sung-Jae Jung, Heung-Soo Kim, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 4290, (2001) https://doi.org/10.1117/12.426917

KEYWORDS: Receivers, Field effect transistors, CMOS technology, Sensors, Data conversion, Signal processing, Signal detection, Capacitors, Positive feedback, Distortion

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Proceedings Article | 14 July 2000 Paper

Microwave characteristics of traveling-wave MQW electro-absorption modulators using the FDTD and the Fourier transform

Seung-Jin Lee, Jeong-Hoon Lee, Soon-Chel Kong, Young-Wan Choi

Proceedings Volume 3944, (2000) https://doi.org/10.1117/12.391481

KEYWORDS: Microwave radiation, Waveguides, Finite-difference time-domain method, Electrodes, Phase velocity, Modulators, Signal attenuation, Wave propagation, Fourier transforms, Numerical analysis

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Proceedings Article | 14 July 2000 Paper

Effect of microwave loss and device length on the linear characteristics of traveling-wave coplanar-waveguide electroabsorption modulator

Soon-Chel Kong, Jeong-Hoon Lee, Seung-Jin Lee, Won-Sun Cho, Youn Sub Lim, Young-Wan Choi

Proceedings Volume 3944, (2000) https://doi.org/10.1117/12.391404

KEYWORDS: Microwave radiation, Transmittance, Modulators, Modulation, Signal attenuation, Intermodulation, Waveguides, Distortion, Nonlinear optics, Signal analyzers

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Proceedings Article | 14 July 2000 Paper

Performance analysis of waveguide-type InGaAsP/InP fully-depleted optical thyristors for optical communication system

Jung-Jun Lee, Doo-Gun Kim, Jae-Kyong Choi, Young-Wan Choi, SangYong Han, Sang Bae Lee, Sun-Ho Kim, Yoshiaki Nakano, N. Futakuchi

Proceedings Volume 3944, (2000) https://doi.org/10.1117/12.391406

KEYWORDS: Switching, Waveguides, Fused deposition modeling, Optical communications, Telecommunications, Doping, Heterojunctions, Optical switching, Metalorganic chemical vapor deposition, Asynchronous transfer mode

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Proceedings Article | 27 April 2000 Paper

Interference pattern analysis of optical CDMA system using the SCAE and SCAD

Tae-Gu Kang, Jae-Kyong Choi, Chan Young Park, Young-Wan Choi, YoungChan Kim

Proceedings Volume 3952, (2000) https://doi.org/10.1117/12.384404

KEYWORDS: Signal detection, Computer programming, Optical networks, Electronic filtering, Channel projecting optics, Optical filters, Code division multiplexing, Signal generators, Information operations, Silicon

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Proceedings Article | 27 April 2000 Paper

Significant improvement of an AlGaAs-GaAs NpnP optical thyristor with mirror layers

Doo-Gun Kim, Jung-Jun Lee, Young-Wan Choi, Seok Lee, Deokha Woo, Byung Kwon Kang, Hwe-Jong Kim, Won Jun Choi, Yoon Ho Park, Hee Taek Yi, Sun-Ho Kim

Proceedings Volume 3952, (2000) https://doi.org/10.1117/12.384403

KEYWORDS: Mirrors, Switching, Free space optics, Signal detection, Optoelectronics, Optical interconnects, Free space, Optoelectronic devices, Reflectors, Optical switching

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Proceedings Article | 13 April 2000 Paper

Analysis and design of traveling-wave photodetectors for rf optical link communication using the finite-difference time-domain method

Soon-Chel Kong, Jeong-Hoon Lee, Seung-Jin Lee, Young-Wan Choi

Proceedings Volume 3948, (2000) https://doi.org/10.1117/12.382118

KEYWORDS: Finite-difference time-domain method, Microwave radiation, Photodetectors, Signal attenuation, Magnetism, Optical instrument design, Waveguides, Optical communications, RF communications, Refractive index

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Proceedings Article | 13 April 2000 Paper

Effect of carrier drift on the characteristics of 1.55-um traveling-wave ridge-coplanar waveguide photodetector

Jeong-Hoon Lee, Soon-Chel Kong, Seung-Jin Lee, Young-Wan Choi

Proceedings Volume 3948, (2000) https://doi.org/10.1117/12.382119

KEYWORDS: Waveguides, Absorption, Photodetectors, Image segmentation, Planar waveguides, Integrated optics, Radon, Microwave radiation, Telecommunications, Optical signal processing

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Proceedings Article | 6 August 1999 Paper

Structural optimization of InGaAsP/InP MQW electroabsorption waveguide modulator

Doo-Gun Kim, Youn Sub Lim, Young-Wan Choi, Seok Lee, Sun-Ho Kim, Yongsang Cho, Jong Yi

Proceedings Volume 3625, (1999) https://doi.org/10.1117/12.356875

KEYWORDS: Absorption, Waveguides, Excitons, Quantum wells, Modulators, Polarization, Electronics engineering, Silicon, Optical communications, Semiconductors

Proceedings Article | 6 August 1999 Paper

Design of 1.55-um fully depleted InGaAsP/InP optical thyristors for optical communication systems

Jae-Kyong Choi, Jeong Lee, Tae-Gu Kang, Doo-Gun Kim, Young-Wan Choi

Proceedings Volume 3625, (1999) https://doi.org/10.1117/12.356935

KEYWORDS: Telecommunications, Doping, Switching, Optical communications, Transient nonlinear optics, Fused deposition modeling, Optical switching, Clocks, Semiconductors, Solids

Proceedings Article | 6 August 1999 Paper

Analysis of traveling-wave coplanar waveguide MQW electroabsorption modulator using the 3D finite-difference time-domain method

Won-Sun Cho, Youn Sub Lim, Young-Wan Choi

Proceedings Volume 3625, (1999) https://doi.org/10.1117/12.356876

KEYWORDS: Microwave radiation, Finite-difference time-domain method, Waveguides, Modulators, Phase velocity, Dielectrics, Signal attenuation, Optical modulators, Modulation, Extremely high frequency

SPIE Journal Paper | 1 April 1999

Maximum bit-rate analysis of various symmetric extremely shallow quantum well self-electro-optic effect devices under optimized input power

Youn Sub Lim, Young-Wan Choi

OE, Vol. 38, Issue 04, (April 1999) https://doi.org/10.1117/12.10.1117/1.602263

KEYWORDS: Quantum wells, Reflectivity, Chromium, Excitons, Switching, Capacitance, Absorption, Optical engineering, Thermal effects, Clocks

SPIE Journal Paper | 1 March 1999

Novel optical thyristors for free-space optical interconnects

Jeong-Ho Lee, Young-Wan Choi

OE, Vol. 38, Issue 03, (March 1999) https://doi.org/10.1117/12.10.1117/1.602283

KEYWORDS: Switching, Diodes, Absorption, Free space optics, Optical interconnects, Photons, Light emitting diodes, Mirrors, Optical switching, Signal detection

Proceedings Article | 4 December 1998 Paper

Modal analysis of rectangular MQW waveguide: a novel approach using scanning angle method

Youn Sub Lim, Young-Wan Choi

Proceedings Volume 3491, (1998) https://doi.org/10.1117/12.328761

KEYWORDS: Waveguides, Niobium, Planar waveguides, Refractive index, Wave propagation, Modal analysis, Finite element methods, Dispersion, Berkelium, Computer programming

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Proceedings Article | 7 July 1998 Paper

Performance analysis of fully depleted optical thyristors using the finite difference method

Jeong-Ho Lee, Young-Wan Choi

Proceedings Volume 3283, (1998) https://doi.org/10.1117/12.316741

KEYWORDS: Transient nonlinear optics, Semiconductors, Doping, Switching, Clocks, Finite difference methods, Optical switching, Fused deposition modeling, Photonic integrated circuits, Optoelectronics

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Proceedings Article | 7 July 1998 Paper

Structural analysis of prechirping InGaAsP bulk electroabsorption modulator considering the effective chirp parameter

Byeong-Gee Kim, Young-Wan Choi

Proceedings Volume 3283, (1998) https://doi.org/10.1117/12.316653

KEYWORDS: Modulators, Structural analysis, Eye, Dispersion, Modulation, Distortion, Optical communications, Transmitters, Single mode fibers, Computer simulations

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Proceedings Article | 5 May 1998 Paper

Performance estimation of p-i(ESQWs)-n optical bistable logic devices

Youn Sub Lim, Young-Wan Choi, O-Kyun Kwon, Kyu Lee

Proceedings Volume 3288, (1998) https://doi.org/10.1117/12.307587

KEYWORDS: Excitons, Reflectivity, Chromium, Capacitance, Absorption, Quantum wells, Switching, Thermal effects, Logic devices, Temperature metrology

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Proceedings Article | 6 June 1997 Paper

Optimization of the negative prechirping Franz-Keldysh InGaAsP bulk electroabsorption modulator

Byeong-Gee Kim, Jeong-Ho Lee, Young-Wan Choi

Proceedings Volume 2994, (1997) https://doi.org/10.1117/12.275590

KEYWORDS: Chromium, Modulators, Waveguides, Absorption, Optimization (mathematics), Modulation, Silver, Wave propagation, Refractive index, Toxic industrial chemicals

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Proceedings Article | 6 June 1997 Paper

Analysis of fully depleted differential double-heterojunction optical thyristor using MQWs and mirror layers

Jeong-Ho Lee, Byeong-Gee Kim, Young-Wan Choi

Proceedings Volume 2994, (1997) https://doi.org/10.1117/12.275583

KEYWORDS: Switching, Diodes, Mirrors, Optical switching, Absorption, Resistance, Doping, Free space optics, Heterojunctions, Circuit switching

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