Dr. Luke A. Graham Profile

Dr. Luke A. Graham

Chief Technical Officer at Dallas Quantum Devices

SPIE Involvement:

Conference Program Committee | Author | Editor

Publications (19)

Proceedings Article | 13 March 2024 Presentation + Paper

Investigating supermodes in coupled dual-element photonic crystal VCSEL arrays: a comparative analysis under strong and weak anti-guiding conditions

William North, Nusrat Jahan, Dan Pflug, Arjun Khurana, Jim Tatum, Luke Graham, Stephen Ralph, Kent Choquette

Proceedings Volume 12904, 1290404 (2024) https://doi.org/10.1117/12.3001782

KEYWORDS: Vertical cavity surface emitting lasers, Photonic crystals, Waveguides, Modulation, Phased array optics, Evanescent wave coupling

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Proceedings Article | 13 March 2024 Presentation

Coherence effects in pulsed photonic crystal VCSEL arrays

Luke Graham, Jim Tatum, Jim Guenter, Pritha Khurana, Freddie Castillo, Nusrat Jahan, Kent Choquette

Proceedings Volume PC12904, PC1290403 (2024) https://doi.org/10.1117/12.3003125

KEYWORDS: Vertical cavity surface emitting lasers, Photonic crystals, Physical coherence, Oxides, Optical components, Modulation, Manufacturing, LIDAR, Data communications

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Proceedings Article | 9 March 2022 Presentation

Highly customized VCSELs for emerging markets

Jim Tatum, Luke Graham, James Guenter, Pritha Khurana

Proceedings Volume PC12020, PC1202002 (2022) https://doi.org/10.1117/12.2612908

KEYWORDS: Modulation, Metals, Custom fabrication, Beam shaping, Vertical cavity surface emitting lasers, Manufacturing, Data communications

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Proceedings Article | 5 March 2021 Presentation + Paper

More power! VCSELs near 1 million amps per square centimeter

Luke Graham, James Guenter, Jim Tatum, Pritha Khurana

Proceedings Volume 11704, 1170409 (2021) https://doi.org/10.1117/12.2577296

KEYWORDS: Electro optics, Thermal effects, Amplifiers, Vertical cavity surface emitting lasers

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Proceedings Article | 4 March 2015 Paper

High-power VCSEL arrays for consumer electronics

Luke Graham, Hao Chen, Jonathan Cruel, James Guenter, Bobby Hawkins, Bobby Hawthorne, David Kelly, Alirio Melgar, Mario Martinez, Edward Shaw, Jim Tatum

Proceedings Volume 9381, 93810A (2015) https://doi.org/10.1117/12.2080064

KEYWORDS: Vertical cavity surface emitting lasers, Reliability, Cameras, Infrared imaging, Thermography, Oxides, Imaging arrays, Thermal modeling, Microscopes

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Proceedings Article | 13 March 2013 Paper

The range of VCSEL wearout reliability acceleration behavior and its effects on applications

James Guenter, Luke Graham, Bobby Hawkins, Robert Hawthorne, Ralph Johnson, Gary Landry, Jim Tatum

Proceedings Volume 8639, 86390I (2013) https://doi.org/10.1117/12.2002840

KEYWORDS: Electroluminescence, Ions, Manufacturing, Indium, Instrument modeling, Gallium arsenide, Quantum wells, Indium gallium arsenide, Vertical cavity surface emitting lasers, Reliability

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Proceedings Article | 7 February 2012 Paper

The next generation of high speed VCSELs at Finisar

Luke Graham, Hao Chen, Deepa Gazula, Timo Gray, James Guenter, Bobby Hawkins, Ralph Johnson, Chris Kocot, Andrew MacInnes, Gary Landry, Jim Tatum

Proceedings Volume 8276, 827602 (2012) https://doi.org/10.1117/12.910505

KEYWORDS: Vertical cavity surface emitting lasers, Reliability, Standards development, Eye, Data communications, Internet, Semiconducting wafers, Transceivers, Resistance, Radio over Fiber

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Proceedings Article | 7 February 2009 Paper

New developments in 850 and 1300nm VCSELs at JDSU

Luke Graham, Melinda Schnoes, Kevin Maranowski, Thomas Fanning, Max Crom, Stewart Feld, Matthew Gray, Karen Bowers, Steve Silva, Kirk Cook, Gayle Schomberger, Ben Gable

Proceedings Volume 7229, 72290B (2009) https://doi.org/10.1117/12.809649

KEYWORDS: Vertical cavity surface emitting lasers, Semiconducting wafers, Reliability, Photomasks, Transceivers, Temperature metrology, Oxides, Failure analysis, Wafer-level optics, Standards development

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Proceedings Article | 12 February 2008 Paper

LW VCSELs for SFP+ applications

Luke Graham, Jack Jewell, Kevin Maranowski, Max Crom, Stewart Feld, Joseph Smith, James Beltran, Thomas Fanning, Melinda Schnoes, Matthew Gray, David Droege, Vera Koleva, Mike Dudek, John Fiers, Russ Patterson

Proceedings Volume 6908, 690802 (2008) https://doi.org/10.1117/12.771288

KEYWORDS: Vertical cavity surface emitting lasers, Oxides, Semiconducting wafers, Reliability, Transceivers, Eye, Temperature metrology, Chlorine, Wafer-level optics, Code division multiplexing

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Proceedings Article | 10 February 2006 Paper

1310nm VCSELs in 1-10Gb/s commercial applications

Jack Jewell, Luke Graham, Max Crom, Kevin Maranowski, Joseph Smith, Tom Fanning

Proceedings Volume 6132, 613204 (2006) https://doi.org/10.1117/12.660840

KEYWORDS: Vertical cavity surface emitting lasers, Reliability, Transceivers, Laser marking, Semiconducting wafers, Error analysis, Laser applications, Single mode fibers, Temperature metrology, Optical filters

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Proceedings Article | 12 November 1999 Paper

Oxide-confined vertical-cavity surface-emitting lasers, quantum dots, and the Purcell effect: can scaling the mode size improve laser performance?

Dennis Deppe, Diana Huffaker, H. Huang, Luke Graham

Proceedings Volume 3896, (1999) https://doi.org/10.1117/12.370314

KEYWORDS: Vertical cavity surface emitting lasers, Optical microcavities, Modulation, Diffraction, Diffusion, Quantum dots, Oxides, Quantum wells, Waveguide modes, Scattering

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Proceedings Article | 11 November 1999 Paper

Oxide-confined vertical-cavity surface-emitting lasers, quantum dots, and the Purcell effect: can scaling the mode size improve laser performance?

Dennis Deppe, Diana Huffaker, H. Huang, Luke Graham

Proceedings Volume 3897, (1999) https://doi.org/10.1117/12.369306

KEYWORDS: Vertical cavity surface emitting lasers, Optical microcavities, Modulation, Diffraction, Diffusion, Quantum dots, Oxides, Quantum wells, Waveguide modes, Scattering

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Proceedings Article | 9 November 1999 Paper

Oxide-confined verticle-cavity surface-emitting lasers, quantum dots, and the Purcell effect: can scaling the mode size improve laser performance?

Dennis Deppe, Diana Huffaker, H. Huang, Luke Graham

Proceedings Volume 3899, (1999) https://doi.org/10.1117/12.369393

KEYWORDS: Vertical cavity surface emitting lasers, Optical microcavities, Modulation, Diffraction, Diffusion, Quantum dots, Oxides, Quantum wells, Active optics, Waveguide modes

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Proceedings Article | 4 November 1999 Paper

Oxide-confined vertical-cavity surface-emitting lasers, quantum dots, and the Purcell effect: can scaling the mode size improve laser performance?

Dennis Deppe, Diana Huffaker, H. Huang, Luke Graham

Proceedings Volume 3898, (1999) https://doi.org/10.1117/12.368480

KEYWORDS: Vertical cavity surface emitting lasers, Optical microcavities, Modulation, Diffraction, Diffusion, Quantum wells, Quantum dots, Oxides, Waveguide modes, Scattering

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Proceedings Article | 6 August 1999 Paper

Observation of enhanced spontaneous decay in 1-um-aperture microcavities with InGaAlAs quantum dot active regions

Luke Graham, Qing Deng, Sebastian Csutak, Diana Huffaker, Dennis Deppe

Proceedings Volume 3625, (1999) https://doi.org/10.1117/12.356887

KEYWORDS: Optical microcavities, Oxides, Quantum dots, Luminescence, Free space, Mirrors, Picosecond phenomena, Scattering, Vertical cavity surface emitting lasers, Waveguide modes

Proceedings Article | 4 April 1997 Paper

Effects of steam oxidation on a single In0.20Ga0.80As quantum well in a half-wave microcavity VCSEL

Luke Graham, Diana Huffaker, Tchang-Hun Oh, Dennis Deppe

Proceedings Volume 3003, (1997) https://doi.org/10.1117/12.271053

KEYWORDS: Quantum wells, Vertical cavity surface emitting lasers, Luminescence, Oxygen, Optical microcavities, Gallium arsenide, Oxides, Aluminum, Gallium, Oxidation

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Proceedings Article | 18 September 1995 Paper

Polygonal gratings for wafer scale one-to-many optical clock signal distribution

Ray Chen, O. Erchov, Luke Graham

Proceedings Volume 2638, (1995) https://doi.org/10.1117/12.221200

KEYWORDS: Optical clocks, Clocks, Silicon, Etching, Diffraction gratings, Waveguides, Semiconducting wafers, Reactive ion etching, Signal detection, Multiplexing

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Proceedings Article | 5 April 1995 Paper

Compact surface-normal coupled optical interconnects with wavelength-division-demultiplexing capability

Suning Tang, Ray Chen, Maggie Li, Srikanth Natarajan, Robert Mayer, Luke Graham

Proceedings Volume 2400, (1995) https://doi.org/10.1117/12.206299

KEYWORDS: Holograms, Waveguides, Planar waveguides, Photodetectors, Multiplexing, Packaging, Polymers, Holography, Optical design, Polymer multimode waveguides

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Proceedings Article | 5 April 1995 Paper

Novel Si-substrate-mode-based wafer scale optical clock distribution architecture

Luke Graham, Oleg Ershov, Suning Tang, Ray Chen

Proceedings Volume 2400, (1995) https://doi.org/10.1117/12.206303

KEYWORDS: Silicon, Semiconducting wafers, Etching, Diffraction gratings, Optical clocks, Diffraction, Waveguides, Surface finishing, Clocks, Reactive ion etching

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