Prof. Lars Thylén Profile

Prof. Lars Thylén

Professor at KTH Royal Institute of Technology

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Author

Publications (20)

Proceedings Article | 17 May 2017 Paper

Nanophotonics and hybrid plasmonics: different technologies and applications

Lech Wosinski, Xu Sun, Lars Thylén

Proceedings Volume 10242, 1024202 (2017) https://doi.org/10.1117/12.2268555

KEYWORDS: Optical sensing, Plasmonics, Nanophotonics, Integrated optics, Waveguides, Silicon, Optical communications, Optical interconnects, Refractive index, Metals, Technologies and applications

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Proceedings Article | 7 May 2013 Paper

Low-power nanophotonics: material and device technology

Lars Thylén, Petter Holmstrom, Lech Wosinski, Sebastian Lourdudoss

Proceedings Volume 8781, 87810Q (2013) https://doi.org/10.1117/12.2018893

KEYWORDS: Silicon, Switches, Nanophotonics, Plasmonics, Switching, Waveguides, Photonics, Modulators, Modulation, Electronics

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Proceedings Article | 7 May 2013 Paper

Hybrid plasmonic microdisk resonators for optical interconnect applications

Fei Lou, Lars Thylen, Lech Wosinski

Proceedings Volume 8781, 87810X (2013) https://doi.org/10.1117/12.2017108

KEYWORDS: Plasmonics, Waveguides, Resonators, Plasmonic waveguides, Wave propagation, Finite-difference time-domain method, Silicon, Silica, Gold, Scanning electron microscopy

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Proceedings Article | 6 March 2013 Paper

Very-low-power and footprint integrated photonic modulators and switches for ICT

Lars Thylén, Petter Holmström, Lech Wosinski

Proceedings Volume 8628, 862805 (2013) https://doi.org/10.1117/12.2006348

KEYWORDS: Switches, Modulators, Plasmonics, Switching, Modulation, Waveguides, Polymers, Integrated photonics, Photonics, Nanophotonics

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Proceedings Article | 2 February 2012 Paper

Advanced silicon device technologies for optical interconnects

Lech Wosinski, Zhechao Wang, Fei Lou, Daoxin Dai, Sebastian Lourdudoss, Lars Thylen

Proceedings Volume 8265, 826506 (2012) https://doi.org/10.1117/12.909919

KEYWORDS: Silicon, Waveguides, Optical interconnects, Silicon photonics, Semiconducting wafers, Diffraction gratings, Photonics, Silica, Photonic integrated circuits, Modulators

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Proceedings Article | 19 May 2011 Paper

Passive and active plasmonic nanoarray devices

Petter Holmström, Jun Yuan, Min Qiu, Lars Thylén, Alexander Bratkovsky

Proceedings Volume 8070, 80700T (2011) https://doi.org/10.1117/12.890978

KEYWORDS: Silver, Nanoparticles, Particles, Waveguides, Dispersion, Directional couplers, Metals, Scattering, Plasma, Signal attenuation

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Proceedings Article | 18 November 2008 Paper

Properties of nanostructured metamaterials at optical frequencies

A. Bratkovsky, E. Ponozovkaya, E. Kim, W. Wu, Y. R. Shen, S.-Y. Wang, L. Thylen

Proceedings Volume 7135, 71352K (2008) https://doi.org/10.1117/12.807181

KEYWORDS: Metamaterials, Refractive index, Silver, Nanoparticles, Silicon, Modulation, Magnetism, Microwave radiation, Finite-difference time-domain method, Electromagnetism

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Proceedings Article | 18 November 2008 Paper

InP-based monolithically integrated 1310/1550nm diplexer/triplexer

C. Silfvenius, M. Swillo, J. Claesson, E. Forsberg, N. Akram, M. Chacinski, L. Thylén

Proceedings Volume 7135, 71351Q (2008) https://doi.org/10.1117/12.803366

KEYWORDS: Waveguides, Photodiodes, Optical amplifiers, Semiconductor lasers, Wavelength division multiplexing, Fiber to the x, Refractive index, Staring arrays, Interfaces, Polarization

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Multiple streams of high definition television (HDTV) and improved home-working infrastructure are currently driving forces for potential fiber to the home (FTTH) customers [1]. There is an interest to reduce the cost and physical size of the FTTH equipment. The current fabrication methods have reached a cost minimum. We have addressed the costchallenge by developing 1310/(1490)/1550nm bidirectional diplexers, by monolithic seamless integration of lasers, photodiodes and wavelength division multiplexing (WDM) couplers into one single InP-based device. A 250nm wide optical gain profile covers the spectrum from 1310 to 1550nm and is the principal building block. The device fabrication is basically based on the established configuration of using split-contacts on continuos waveguides. Optical and electrical cross-talks are further addressed by using a Y-configuration to physically separate the components from each other and avoid inline configurations such as when the incoming signal travels through the laser component or vice versa. By the eliminated butt-joint interfaces which can reflect light between components or be a current leakage path and by leaving optically absorbing (unpumped active) material to surround the components to absorb spontaneous emission and nonintentional reflections the devices are optically and electrically isolated from each other. Ridge waveguides (RWG) form the waveguides and which also maintain the absorbing material between them. The WDM functionality is designed for a large optical bandwidth complying with the wide spectral range in FTTH applications and also reducing the polarization dependence of the WDM-coupler. Lasing is achieved by forming facet-free, λ/4-shifted, DFB (distributed feedback laser) lasers emitting directly into the waveguide. The photodiodes are waveguide photo-diodes (WGPD). Our seamless technology is also able to array the single channel diplexers to 4 to 12 channel diplexer arrays with 250μm fiber port waveguide spacing to comply with fiber optic ribbons. This is an important feature in central office applications were small physical space is important.

Proceedings Article | 26 November 2007 Paper

Intersubband photonic devices by group-III nitrides

P. Holmström, X. Liu, H. Uchida, T. Aggerstam, A. Kikuchi, K. Kishino, S. Lourdudoss, T. Andersson, L. Thylén

Proceedings Volume 6782, 67821N (2007) https://doi.org/10.1117/12.754372

KEYWORDS: Quantum wells, Gallium nitride, Absorption, Modulators, Aluminum nitride, Quantum well infrared photodetectors, Silicon, Waveguides, Switches, Terahertz radiation

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Proceedings Article | 21 February 2007 Paper

GaN/AlN multiple quantum well structures grown by MBE on GaN templates for 1.55 µm intersubband absorption

T. Aggerstam, T. Andersson, P. Holmström, P. Jänes, X. Liu, S. Lourdudoss, L. Thylén

Proceedings Volume 6479, 64791E (2007) https://doi.org/10.1117/12.695457

KEYWORDS: Gallium nitride, Absorption, Quantum wells, Aluminum nitride, Sapphire, Modulators, FT-IR spectroscopy, Atomic force microscopy, Silicon, Solids

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Proceedings Article | 29 September 2006 Open Access

Materials R&D as enablers for quantum leaps in photonics device development and performance

Lars Thylén

Proceedings Volume 6401, 640101 (2006) https://doi.org/10.1117/12.692613

KEYWORDS: Photonics, Photonic devices, Resonators, Waveguides, Transparency, Metals, Dispersion, Photonic crystals, Plasmons, Chemical species

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Proceedings Article | 19 July 2006 Paper

High-speed traveling-wave electro-absorption modulators

Urban Westergren, Yichuan Yu, Lars Thylén

Proceedings Volume 6350, 635004 (2006) https://doi.org/10.1117/12.693009

KEYWORDS: Modulators, Waveguides, Continuous wave operation, Microwave radiation, Modulation, Quantum wells, Electrodes, Absorption, Transmitters, Multiplexers

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Proceedings Article | 6 July 2006 Paper

The strategic research agenda of the Technology Platform Photonics21: European component industry for broadband communications and the FP 7

Lars Thylén

Proceedings Volume 6350, 635002 (2006) https://doi.org/10.1117/12.693347

KEYWORDS: Photonics, Manufacturing, Broadband telecommunications, Design for manufacturability, Electronics, Packaging, Telecommunications, Integrated photonics, Intellectual property, Reliability

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Proceedings Article | 13 October 2005 Paper

Applications of wavelength dispersion in 1D and 2D photonic crystals

B. Jaskorzynska, M. Qiu, A. Berrier, M. Dainese, S. Anand, L. Wosinski, L. Thylen, Z. Zawistowski

Proceedings Volume 5950, 59500E (2005) https://doi.org/10.1117/12.620715

KEYWORDS: Photonic crystals, Dispersion, Waveguides, Directional couplers, Optical filters, Negative refraction, Tunable filters, Electronic filtering, Liquid crystals, Silicon

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Proceedings Article | 3 June 2005 Paper

Some emerging photonic technologies and their device impact: photonic crystals, plasmonics, and electromagnetically induced transparency

Lars Thylen, Min Qiu

Proceedings Volume 5825, (2005) https://doi.org/10.1117/12.611344

KEYWORDS: Photonic crystals, Semiconductors, Plasmonics, Photonic crystal devices, Transparency, Electronics, Dielectrics, Crystals, Optical microcavities, Photonic devices

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Proceedings Article | 31 January 2005 Paper

Negative refraction in semiconductor photonic crystals

M. Qiu, Z. Ruan, A. Berrier, S. Xiao, M. Mulot, M. Swillo, S. Anand, S. He, L. Thylen

Proceedings Volume 5624, (2005) https://doi.org/10.1117/12.576253

KEYWORDS: Photonic crystals, Negative refraction, Interfaces, Waveguides, Semiconductors, Finite-difference time-domain method, Imaging systems, Image quality, Gaussian beams, Dielectrics

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Proceedings Article | 30 April 2004 Paper

Optical add/drop filters using two-dimensional photonic crystals

Min Qiu, Mikael Mulot, Marcin Swillo, Srinivasan Anand, Bozena Jaskorzynska, Anders Karlsson, Lars Thylen

Proceedings Volume 5279, (2004) https://doi.org/10.1117/12.520470

KEYWORDS: Waveguides, Optical filters, Photonic crystals, Dispersion, Negative refraction, Optical design, Heterojunctions, Optical resonators, Finite-difference time-domain method, Wavelength division multiplexing

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Proceedings Article | 25 March 2004 Paper

High-speed electro-absorption modulators for fiber optic communications

Stefan Irmscher, Robert Lewen, Urban Eriksson, Urban Westergren, Lars Thylen

Proceedings Volume 5277, (2004) https://doi.org/10.1117/12.522920

KEYWORDS: Modulators, Modulation, Electrodes, Capacitance, Resistors, Signal attenuation, Waveguides, Dielectrics, Single mode fibers, Inductance

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Proceedings Article | 29 August 2002 Paper

Photonic crystal waveguides in InP-based heterostructures

Min Qiu, Marcin Swillo, Mikael Mulot, Srinivasan Anand, Bozena Jaskorzynska, Anders Karlsson, Lars Thylen

Proceedings Volume 4905, (2002) https://doi.org/10.1117/12.481049

KEYWORDS: Waveguides, Photonic crystals, Heterojunctions, Etching, Finite-difference time-domain method, Ion beams, Dielectrics, Ions, Scanning electron microscopy, Polarizers

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Proceedings Article | 1 August 1990 Paper

Polarization-selective phase modulator: a potential component for interferometric fiber optical sensors?

Raoul Stubbe, Gunnar Edwall, Bengt Sahlgren, Lars Svahn, Per Granestrand, Lars Thylen

Proceedings Volume 1267, (1990) https://doi.org/10.1117/12.20310

KEYWORDS: Modulation, Polarization, Phase shift keying, Fiber optics sensors, Modulators, Fiber optic gyroscopes, Fiber optics, Phase modulation, Polarizers, Interferometers

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Showing 5 of 20 publications

Conference Committee Involvement (2)

Asia-Pacific Optical Communications

26 October 2008 | Hangzhou, China

Asia-Pacific Optical Communications

7 November 2004 | Beijing, China

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