Dr. Gregory A. Vawter Profile

Dr. Gregory A. Vawter

Sr. Member Technical Staff at Sandia National Labs

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 6 March 2013 Paper

InP tunable ring resonator filters

F. Cajas, E. Skogen, D. Torres, G. Peake, A. Tauke-Pedretti, C. Alford, M. Overberg, G. Vawter

Proceedings Volume 8628, 86280O (2013) https://doi.org/10.1117/12.999288

KEYWORDS: Resonators, Waveguides, Optical filters, Photonic integrated circuits, Optical signal processing, Tunable filters, Electronic filtering, Quantum wells, Instrument modeling, Filtering (signal processing)

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Proceedings Article | 16 February 2010 Paper

A platform for multiplexed sensing of biomolecules using high-Q microring resonator arrays with differential readout and integrated microfluidics

M. Shaw, I. Brener, G. Vawter, K. Westlake, D. Branch, J. Wright

Proceedings Volume 7605, 76050C (2010) https://doi.org/10.1117/12.842283

KEYWORDS: Sensors, Waveguides, Resonators, Microrings, Refractive index, Microfluidics, Etching, Servomechanisms, Multiplexing, Liquids

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SPIE Journal Paper | 1 October 2006

Fabrication and measurement of wideband achromatic waveplates for the mid-infrared region using subwavelength features

Robert Boye, Shanalyn Kemme, Joel Wendt, Alvaro Cruz-Cabrera, Gregory Vawter, Charles Alford, Tony Carter, Sally Samora

JM3, Vol. 5, Issue 04, 043007, (October 2006) https://doi.org/10.1117/12.10.1117/1.2397081

KEYWORDS: Wave plates, Optical design, Etching, Polarization, Gallium arsenide, Birefringence, Polarimetry, Phase measurement, Polarizers, Metals

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Proceedings Article | 3 March 2006 Paper

InP-based monolithically integrated optical gain-competition inverter

G. Vawter, G. Peake, E. Skogen, B. Salters, C. Alford, W. Chow, F. Cajas, R. Shul, A. Hsu, K. Baucom

Proceedings Volume 6124, 612418 (2006) https://doi.org/10.1117/12.643995

KEYWORDS: Etching, Integrated optics, Laser damage threshold, Laser optics, Modulation, Laser scattering, Reflectivity, Logic, Semiconductor lasers, Optical logic

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Proceedings Article | 23 January 2006 Paper

Fabrication issues for a chirped subwavelength form-birefringent polarization splitter

J. Wendt, C. Alford, R. Boye, D. Peters, S. Kemme, G. Vawter, A. Cruz-Cabrera, S. Samora, T. Carter

Proceedings Volume 6110, 61100J (2006) https://doi.org/10.1117/12.646796

KEYWORDS: Etching, Polarization, Gallium arsenide, Beam splitters, Optical design, Ion beams, Ions, Argon, Aberration correction, Semiconducting wafers

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Proceedings Article | 31 March 2005 Paper

High-Q microring resonator for biochemical sensors

Michael Shaw, Junpeng Guo, Charles Sullivan, Peter Esherick, G. Vawter, G. Hadley

Proceedings Volume 5728, (2005) https://doi.org/10.1117/12.589467

KEYWORDS: Microrings, Resonators, Waveguides, Silicon, Cladding, Liquids, Sensors, Semiconducting wafers, Mach-Zehnder interferometers, Silica

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Proceedings Article | 22 January 2005 Paper

Fabrication techniques for low-loss silicon nitride waveguides

Gregory Vawter, Scott Habermehl, Charles Sullivan, Junpeng Guo, Michael Shaw

Proceedings Volume 5720, (2005) https://doi.org/10.1117/12.588828

KEYWORDS: Waveguides, Silicon, Cladding, Photonic integrated circuits, Semiconducting wafers, Oxides, Fabrication, Silica, Chemical mechanical planarization, Oxidation

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Proceedings Article | 14 June 2004 Paper

Characterization of Si3N4/SiO2 planar lightwave circuits and ring resonators

Charles Alford, Anisha Jain, Junpeng Guo, G. Ronald Hadley, Peter Esherick, Charles Sullivan, G. Allen Vawter, Michael Shaw

Proceedings Volume 5350, (2004) https://doi.org/10.1117/12.529641

KEYWORDS: Waveguides, Silicon, Silica, Photonic integrated circuits, Resonators, Refractive index, Cladding, Semiconducting wafers, Polarizers, Polarization

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Proceedings Article | 28 May 2004 Paper

Adiabatic mode converters for photonic integrated circuits and devices

G. Allen Vawter, Sayan Mukherjee, Charles Sullivan, Thor Bakke

Proceedings Volume 5355, (2004) https://doi.org/10.1117/12.525867

KEYWORDS: Waveguides, Polymers, Modulators, Polymer multimode waveguides, Single mode fibers, Transformers, Semiconductors, Photonic integrated circuits, Polymer optical fibers, Oxidation

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Proceedings Article | 12 November 1999 Open Access

RF and millimeter-wave photonics at Sandia National Laboratories

G. Allen Vawter, Charles Sullivan

Proceedings Volume 3795, (1999) https://doi.org/10.1117/12.370190

KEYWORDS: Waveguides, Photonic integrated circuits, Optical amplifiers, Modulators, Mode locking, Semiconductor lasers, Mach-Zehnder interferometers, Polarization, Photodiodes, Photonics

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Proceedings Article | 22 June 1998 Paper

Applications of photonic crystals in optoelectronics

Kai Ho, Mihail Sigalas, B. Hammons, Dale Hetherington, W. Zubrzycki, John Joannopoulos, G. Allen Vawter, Joel Wendt, Bradley Smith, Steven Kurtz, Shawn-Yu Lin, Edmond Chow, James Fleming, Pierre Villeneuve, Rana Biswas

Proceedings Volume 3419, 34190X (1998) https://doi.org/10.1117/12.311017

KEYWORDS: Optoelectronics, Photonic crystals, Silicon photonics, Crystals

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Proceedings Article | 5 May 1998 Paper

Monolithic wavelength-graded VCSEL and wavelength-selective photodetector arrays for wavelength-division-multiplexed optical interconnect applications

G. Allen Vawter, Julian Cheng, Andrew Alduino, N. Li, Sanh Luong, Christopher Hains, Yuxin Zhou, Jun Lu, Hong Hou

Proceedings Volume 3288, (1998) https://doi.org/10.1117/12.307561

KEYWORDS: Vertical cavity surface emitting lasers, Channel projecting optics, Absorption, Photodetectors, Multiplexing, Optical interconnects, Free space optics, Semiconducting wafers, Metalorganic chemical vapor deposition

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Proceedings Article | 22 December 1997 Paper

Monolithic wavelength-graded VCSEL and wavelength-selective photodetector arrays for WDM applications

Gerry Ortiz, Sanh Luong, Julian Cheng, Hong Hou, G. Allen Vawter, Jun Lu, Yuxin Zhou, B. Hammons

Proceedings Volume 3290, (1997) https://doi.org/10.1117/12.298233

KEYWORDS: Vertical cavity surface emitting lasers, Photodetectors, Mirrors, Absorption, Wavelength division multiplexing, Metalorganic chemical vapor deposition, Free space optics, Semiconducting wafers, Reflectivity

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Proceedings Article | 4 April 1997 Paper

High-speed optical transceiver and routing switch using VCSEL-based integrated optoelectronics

G. Allen Vawter, Michael Hafich, Andrew Alduino, John Zolper, Christopher Hains, Bo Lu, Julian Cheng, Gerry Ortiz, Yin-Chen Lu, Hong Hou

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271097

KEYWORDS: Vertical cavity surface emitting lasers, Switches, Photodetectors, Switching, Optoelectronics, Optical fibers, Integrated optics, Receivers, Modulation, Transceivers

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Proceedings Article | 1 April 1996 Paper

Techniques for increasing output power from mode-locked semiconductor lasers

Alan Mar, G. Allen Vawter

Proceedings Volume 2684, (1996) https://doi.org/10.1117/12.236928

KEYWORDS: Mode locking, Optical amplifiers, Semiconductor lasers, Pulsed laser operation, Picosecond phenomena, Waveguides, Amplifiers, Waveguide lasers, Oscillators, Pulse shaping

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Proceedings Article | 20 April 1995 Paper

NIR high-efficiency subwavelength diffractive structures in semiconductors

Joel Wendt, G. Allen Vawter, Mial Warren, Robert Smith

Proceedings Volume 2404, (1995) https://doi.org/10.1117/12.207462

KEYWORDS: Diffraction gratings, Diffraction, Optical design, Semiconductors, Etching, Gallium arsenide, Near infrared, Diffractive optical elements, Teeth, Binary data

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Proceedings Article | 10 April 1995 Paper

Integration of diffractive lenses with addressable vertical-cavity laser arrays

Kevin Lear, Richard Schneider, Mial Warren, G. Allen Vawter, Joel Wendt, John Zolper, Tu Du, Sean Kilcoyne, Richard Carson

Proceedings Volume 2398, (1995) https://doi.org/10.1117/12.206343

KEYWORDS: Vertical cavity surface emitting lasers, Lenses, Receivers, Optical interconnects, Etching, Gallium arsenide, Lens design, Prototyping, Measurement devices, Electron beam lithography

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Proceedings Article | 5 April 1995 Paper

High-speed optical interconnect technology for a reconfigurable multiprocessor network

G. Allen Vawter, John Klem, Julian Cheng, John Zolper, Bo Lu, Yin-Chen Lu, Andrew Alduino, Gerry Ortiz

Proceedings Volume 2400, (1995) https://doi.org/10.1117/12.206327

KEYWORDS: Switches, Vertical cavity surface emitting lasers, Modulation, Optoelectronics, Data conversion, Switching, Optical switching, Integrated optics, Binary data, Channel projecting optics

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Proceedings Article | 30 June 1994 Paper

III-V compound semiconductor strip-loaded waveguide devices for PICs: design for minimum crosstalk and high density

G. Allen Vawter, G. Ronald Hadley

Proceedings Volume 2146, (1994) https://doi.org/10.1117/12.178495

KEYWORDS: Waveguides, Photonic integrated circuits, Heterojunctions, Absorption, Ion implantation, Etching, Compound semiconductors, Mach-Zehnder interferometers, Modulators, Light scattering

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Proceedings Article | 30 June 1994 Paper

Semiconductor microcavity lasers

G. Allen Vawter, Joel Wendt, Mial Warren, Thomas Brennan, B. Hammons, Paul Gourley

Proceedings Volume 2146, (1994) https://doi.org/10.1117/12.178523

KEYWORDS: Mirrors, Semiconductor lasers, Quantum wells, Optical microcavities, Semiconducting wafers, Near field optics, Semiconductors, Photons, Charged particle optics, Wafer-level optics

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Proceedings Article | 30 June 1994 Paper

Metal-ion spin-on glasses: novel materials for active waveguides

Charles Sullivan, Daniel Neal, Carol Ashby, G. Ronald Hadley, John Hohimer, G. Allen Vawter

Proceedings Volume 2146, (1994) https://doi.org/10.1117/12.178534

KEYWORDS: Waveguides, Glasses, Semiconductor lasers, Luminescence, Laser applications, Optical amplifiers, Semiconducting wafers, Laser development, Ions, Refractive index

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Proceedings Article | 10 June 1994 Paper

Fabrication of high-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits

Ronald Leibenguth, Marcelino Armendariz, Richard Carson, G. Allen Vawter, Vincent Hietala, Morris Snipes, Stanley Kravitz, B. Hammons

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177393

KEYWORDS: Modulators, Integrated optics, Integrated circuits, Electrodes, Waveguides, Gold, Scanning electron microscopy

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Proceedings Article | 10 June 1994 Paper

High-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits

Stanley Kravitz, Vincent Hietala, Marcelino Armendariz, Richard Carson, Ronald Leibenguth, G. Allen Vawter

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177420

KEYWORDS: Modulators, Phased array optics, Integrated optics, Photonic integrated circuits, Integrated circuits, Control systems, Integrated circuit design, Signal processing, Process control, Antennas

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Proceedings Article | 2 June 1994 Paper

Phase-locked arrays of vertical-cavity surface-emitting lasers

Kevin Lear, J. Lott, B. Hammons, Paul Gourley, G. Allen Vawter, Thomas Brennan, G. Ronald Hadley, John Zolper, Scott Chalmers, Mial Warren

Proceedings Volume 2145, (1994) https://doi.org/10.1117/12.177131

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Reflectivity, Modulation, Phase shift keying, Near field, Etching, Near field optics, Gallium arsenide, Dielectric mirrors

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Proceedings Article | 2 May 1994 Paper

Reconfigurable optical switches with monolithic electrical-to-optical interfaces

Julian Cheng, John Zolper, A. Adams, Ronald Leibenguth, Kevin Lear, G. Allen Vawter, Ping Zhou

Proceedings Volume 2153, (1994) https://doi.org/10.1117/12.174522

KEYWORDS: Vertical cavity surface emitting lasers, Switches, Modulation, Optical switching, Optoelectronics, Integrated optics, Binary data, Interfaces, Heterojunctions, Channel projecting optics

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Proceedings Article | 1 July 1993 Paper

Surface-emitting laser-based optical switching: an update

Marek Osinski, Ping Zhou, David Myers, John Zolper, Shang Sun, Stephen Hersee, G. Allen Vawter, Julian Cheng

Proceedings Volume 1849, (1993) https://doi.org/10.1117/12.147104

KEYWORDS: Vertical cavity surface emitting lasers, Switches, Switching, Resistance, Optical switching, Modulation, Optoelectronics, Electronics, Positive feedback, Optical logic

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Proceedings Article | 25 February 1993 Paper

Integrated test and package methods for integrated photonics

Vincent Hietala, Stanley Kravitz, G. Allen Vawter, Nathan Harff, Richard Carson, Marcelino Armendariz

Proceedings Volume 1791, (1993) https://doi.org/10.1117/12.141167

KEYWORDS: Waveguides, Modulators, Phased array optics, Photonic integrated circuits, Modulation, Phase shift keying, Phase shifts, Antireflective coatings, Packaging, Reliability

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Proceedings Article | 2 December 1992 Paper

Photonic integrated-circuit elements for phased-array steering systems

Vincent Hietala, Stanley Kravitz, G. Allen Vawter, Richard Carson, Marcelino Armendariz, W. Meyer

Proceedings Volume 1703, (1992) https://doi.org/10.1117/12.138400

KEYWORDS: Modulators, Waveguides, Phase shift keying, Photonic integrated circuits, Etching, Phased array optics, Modulation, Adaptive optics, Phase shifts, Interferometers

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Proceedings Article | 1 December 1992 Paper

Processing issues and technologies for optoelectronics-integrated circuits and devices (invited)

G. Allen Vawter

Proceedings Volume 1582, (1992) https://doi.org/10.1117/12.2321800

KEYWORDS: Photonic integrated circuits, Waveguides, Etching, Modulators, Optoelectronics, Phase shift keying, Mirrors, Integrated optics, Phased array optics, Integrated circuit design

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Proceedings Article | 1 August 1991 Paper

Direct optical phase shifter for phased-array systems

W. Meyer, G. Allen Vawter, Vincent Hietala, Stanley Kravitz

Proceedings Volume 1476, (1991) https://doi.org/10.1117/12.45565

KEYWORDS: Waveguides, Modulators, Phased array optics, Photonic integrated circuits, Phase shifts, Control systems, Integrated optics, Optical components, Antennas, Chemical elements

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Proceedings Article | 1 August 1991 Paper

Phased-array antenna control by a monolithic photonic integrated circuit

Stanley Kravitz, Vincent Hietala, W. Meyer, G. Allen Vawter

Proceedings Volume 1476, (1991) https://doi.org/10.1117/12.45588

KEYWORDS: Antennas, Photonic integrated circuits, Phase shifts, Phased array optics, Microwave radiation, Heterodyning, Integrated optics, Sensors, Optical fibers, Channel projecting optics

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Showing 5 of 31 publications

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