Dr. James H. Bechtel Profile

Dr. James H. Bechtel

at L3 Unmanned Systems

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 14 July 2003 Paper

Electro-optic polymer integrated optic devices and future applications

James Bechtel, James Menders, De Yu Zang

Proceedings Volume 4991, (2003) https://doi.org/10.1117/12.479451

KEYWORDS: Polymers, Waveguides, Modulators, Electrodes, Integrated optics, Photonics, Polymer multimode waveguides, Electro optic polymers, Cladding, Modulation

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Proceedings Article | 14 July 2003 Paper

Insertion loss reduction in high-speed polymer electro-optic modulators using tapered waveguide, fiber tip lenses, and modification of waveguide structures

De Yu Zang, Golden Shu, Travis Downing, Weiping Lin, Choon Oh, James Bechtel

Proceedings Volume 4991, (2003) https://doi.org/10.1117/12.475446

KEYWORDS: Waveguides, Polymers, Polymer multimode waveguides, Cladding, Waveguide modes, Channel waveguides, Lenses, Refractive index, Structured optical fibers, Modulators

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Proceedings Article | 1 July 2003 Paper

Fiber optic temperature sensors for medical applications

David Schaafsma, Gail Palmer, James Bechtel

Proceedings Volume 4957, (2003) https://doi.org/10.1117/12.478045

KEYWORDS: Fiber optics sensors, Temperature metrology, Sensors, Temperature sensors, Luminescence, Fiber optics, Glasses, Absorption, Fiber Bragg gratings, Microwave radiation

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Proceedings Article | 19 June 2003 Paper

Optimization of microstrip electrode design for high-speed polymer electro-optic modulator

De Yu Zang, Xuejun Meng, Weiping Lin, James Bechtel

Proceedings Volume 4987, (2003) https://doi.org/10.1117/12.474343

KEYWORDS: Electrodes, Polymers, Gold, Metals, Modulators, Copper, Silver, Electro optic polymers, Waveguides, Surface roughness

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Proceedings Article | 27 December 2001 Paper

Fabrication of polymer waveguide tapers to minimize insertion loss

Araz Yacoubian, Weiping Lin, James Bechtel

Proceedings Volume 4490, (2001) https://doi.org/10.1117/12.455440

KEYWORDS: Waveguides, Optical fibers, Polymers, Single mode fibers, Modulators, Waveguide modes, Tolerancing, Reactive ion etching, Polymer multimode waveguides, Photomasks

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Proceedings Article | 13 December 2001 Paper

Analysis of poling-induced polymer waveguide losses in push-pull Mach-Zehnder modulators

Araz Yacoubian, Weiping Lin, David Olson, James Bechtel

Proceedings Volume 4455, (2001) https://doi.org/10.1117/12.450439

KEYWORDS: Electrodes, Waveguides, Polymers, Modulators, Oxygen, Modulation, Electro optic polymers, Cladding, Polymer multimode waveguides, Dielectric breakdown

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Proceedings Article | 29 November 2000 Paper

Low-driving-voltage electro-optic polymer modulators for advanced photonic applications

James Bechtel, Yongqiang Shi, Hua Zhang, William Steier, Cheng Zhang, Larry Dalton

Proceedings Volume 4114, (2000) https://doi.org/10.1117/12.408539

KEYWORDS: Modulators, Chromophores, Polymers, Electrodes, Waveguides, Electrooptic modulators, Fiber optic communications, Electro optics, Electro optic polymers, Telecommunications

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Proceedings Article | 26 October 2000 Paper

Electro-optic polymer integrated optic devices for space applications

James Bechtel, Weiping Lin, Yongqiang Shi, Araz Yacoubian

Proceedings Volume 4134, (2000) https://doi.org/10.1117/12.405362

KEYWORDS: Modulators, Polymers, Integrated optics, Photonics, Waveguides, Modulation, Electrodes, Chromophores, Sensors, Electro optic polymers

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Proceedings Article | 7 September 2000 Paper

High dynamic range analog optical modulator

Paul Young, James Bechtel

Proceedings Volume 4112, (2000) https://doi.org/10.1117/12.399391

KEYWORDS: Modulators, Modulation, Signal attenuation, Intermodulation, Signal to noise ratio, High dynamic range imaging, Optical modulators, Analog electronics, Microwave radiation, Transmitters

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Proceedings Article | 30 November 1999 Paper

Nonenzymatic microorganism identification based on ribosomal RNA

Jeffrey Ives, Alicia Pierini, Jeffrey Stokes, Thomas Wahlund, Betsy Read, James Bechtel, Burt Bronk

Proceedings Volume 3855, (1999) https://doi.org/10.1117/12.371268

KEYWORDS: Bacteria, Microorganisms, Viruses, Magnetism, Biological weapons, Defense and security, Fluorescence spectroscopy, Electromagnetism, Target detection, Sodium

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Proceedings Article | 12 November 1999 Paper

Balanced photonic microwave/millimeter-wave mixer and frequency converter

Yongqiang Shi, James Bechtel, Wenshen Wang

Proceedings Volume 3795, (1999) https://doi.org/10.1117/12.370184

KEYWORDS: Modulators, Microwave radiation, Microwave photonics, Photonic microstructures, Upconversion, Modulation, Electronics, RF photonics, Lithium niobate, Frequency conversion

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Proceedings Article | 11 October 1999 Paper

Low-halfwave-voltage electro-optic polymer modulators: design and fabrication

Yongqiang Shi, James Bechtel, Wenshen Wang

Proceedings Volume 3796, (1999) https://doi.org/10.1117/12.368292

KEYWORDS: Cladding, Modulators, Waveguides, Polymers, Electrodes, Modulation, Nonlinear optics, Etching, Phase shift keying, Electro optics

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Proceedings Article | 13 April 1999 Paper

Packaging and testing high-speed electro-optic polymer modulators

Yongqiang Shi, Wenshen Wang, David Olson, Weiping Lin, James Bechtel

Proceedings Volume 3632, (1999) https://doi.org/10.1117/12.344602

KEYWORDS: Optical fibers, Modulators, Polymers, Waveguides, Interfaces, Electrodes, Packaging, Polymer multimode waveguides, Polarization, Phase modulation

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Proceedings Article | 23 February 1999 Paper

Fiber optic immunosensors to monitor small-molecule analytes in groundwater

Jeffrey Ives, Heide Doss, Brian Sullivan, John Stires, James Bechtel

Proceedings Volume 3540, (1999) https://doi.org/10.1117/12.339806

KEYWORDS: Molecules, Fiber optics, Analog electronics, Optical fibers, Sensors, Semiconductor lasers, Fiber optics sensors, Chemical analysis, Fiber optics tests, Signal detection

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Proceedings Article | 3 November 1998 Paper

RF photonics and polymer devices

James Bechtel, Yongqiang Shi, Michael Salour

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330396

KEYWORDS: Modulators, Polymers, Electrodes, Waveguides, Electrooptic modulators, Electro optic polymers, Switches, RF photonics, Modulation, Cladding

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Proceedings Article | 31 July 1998 Paper

Photonic processing with polylithic integrated optical devices

James Bechtel, Charles Morrison, Yongqiang Shi

Proceedings Volume 3384, (1998) https://doi.org/10.1117/12.317665

KEYWORDS: Modulators, Polymers, Electrodes, Epitaxial lateral overgrowth, Photodetectors, Signal processing, Integrated optics, Gallium arsenide, Thin films, Waveguides

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Proceedings Article | 5 May 1998 Paper

New method for grafting a thin film metal-semiconductor-metal photodetector with a transimpedence amplifier and applications to multichip module packaging

Charles Morrison, Zheng Zhu, Joel Steinberg, Andreas Glinz, James Bechtel

Proceedings Volume 3288, (1998) https://doi.org/10.1117/12.307585

KEYWORDS: Thin films, Photodetectors, Gallium arsenide, Electrodes, Thin film devices, Epitaxial lateral overgrowth, Fiber amplifiers, Optical amplifiers, Prototyping, Receivers

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Proceedings Article | 17 April 1998 Paper

AC/DC field relaxation in multilayer polymer devices: analysis and applications

Yongqiang Shi, Wenshen Wang, Weiping Lin, David Olson, James Bechtel

Proceedings Volume 3281, (1998) https://doi.org/10.1117/12.305411

KEYWORDS: Polymers, Modulators, Cladding, Waveguides, Dielectrics, Polymer multimode waveguides, Modulation, Electrodes, Power supplies, Electro optics

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Proceedings Article | 8 April 1998 Paper

Wide-area thin film metal-semiconductor-metal photodetectors for lidar applications

Charles Morrison, Andreas Glinz, Zheng Zhu, James Bechtel, Steven Frimel, Kenneth Roenker

Proceedings Volume 3287, (1998) https://doi.org/10.1117/12.304501

KEYWORDS: Photodetectors, Electrodes, Thin films, Epitaxial lateral overgrowth, Instrument modeling, LIDAR, Semiconductor materials, Performance modeling, Antireflective coatings, Signal to noise ratio

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Proceedings Article | 1 February 1998 Paper

Dense wavelength division multiplexing (DWDM) digital fiber optic transmission system for multichannel video, audio, and data

Joseph Svacek, Arthur Nelson, Charles Morrison, James Bechtel

Proceedings Volume 3234, (1998) https://doi.org/10.1117/12.300936

KEYWORDS: Dense wavelength division multiplexing, Video, Video coding, Fiber optics, Data transmission, Laser systems engineering, Channel projecting optics, Planar waveguides, Waveguides, Demultiplexers

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Proceedings Article | 13 October 1997 Paper

High optical power throughput electro-optic polymer modulator fabrication using double-end crosslinked polymer

Yongqiang Shi, Wenshen Wang, David Olson, Weiping Lin, James Bechtel

Proceedings Volume 3147, (1997) https://doi.org/10.1117/12.284251

KEYWORDS: Polymers, Waveguides, Polymer multimode waveguides, Modulators, Chromophores, Polymer thin films, Electro optic polymers, Electrodes, Second-harmonic generation, Electro optics

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Proceedings Article | 4 April 1997 Paper

New processing approach for grafting optoelectronic devices and applications to multichip modules

Charles Morrison, Ronald Strijek, James Bechtel

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271079

KEYWORDS: Epitaxial lateral overgrowth, Thin films, Optoelectronic devices, Integrated circuits, Nanolithography, Manufacturing, Semiconductors, Gallium arsenide, Thin film devices, Silicon

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Proceedings Article | 23 January 1997 Paper

Polymer integrated modulators for photonic data link applications

Wenshen Wang, Yongqiang Shi, David Olson, Weiping Lin, James Bechtel

Proceedings Volume 2997, (1997) https://doi.org/10.1117/12.264139

KEYWORDS: Modulators, Polymers, Modulation, Waveguides, Transmitters, Fiber optics, Analog electronics, Receivers, Polymer thin films, Electrodes

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Proceedings Article | 22 November 1996 Paper

Waveguide binary photonic true-time-delay lines using polymer integrated switches and waveguide delays

Wenshen Wang, Yongqiang Shi, Weiping Lin, James Bechtel

Proceedings Volume 2844, (1996) https://doi.org/10.1117/12.259005

KEYWORDS: Waveguides, Polymers, Switches, Polymer multimode waveguides, Modulators, Optical fibers, Binary data, Phased arrays, Integrated optics, Switching

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Proceedings Article | 1 November 1996 Paper

Electro-optic polymer modulators: manufacturing, packaging, and testing

Yongqiang Shi, Wenshen Wang, David Olson, Weiping Lin, James Bechtel

Proceedings Volume 2852, (1996) https://doi.org/10.1117/12.256181

KEYWORDS: Modulators, Polymers, Waveguides, Electrodes, Modulation, Polymer multimode waveguides, Polymer thin films, Fiber optics, Channel waveguides, Microwave radiation

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Proceedings Article | 1 May 1996 Paper

Electro-optic polymer modulators for externally modulated fiber optic transmitters

James Bechtel, Yongqiang Shi, Wenshen Wang

Proceedings Volume 2690, (1996) https://doi.org/10.1117/12.238916

KEYWORDS: Modulators, Polymers, Modulation, Analog electronics, Fiber optics, Electro optic polymers, Electrooptic modulators, Waveguides, Transmitters, Electrodes

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Proceedings Article | 5 October 1995 Paper

Wavelength dependent photoinduced depoling in poled nonlinear optical polymer thin films

Yongqiang Shi, David Olson, James Bechtel, Srinath Kalluri, Sean Garner, William Steier

Proceedings Volume 2527, (1995) https://doi.org/10.1117/12.222790

KEYWORDS: Polymers, Absorption, Polymer thin films, Chromophores, Polarization, Modulators, Electro optics, Modulation, Waveguides, Diffraction

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Proceedings Article | 23 September 1994 Paper

Measurement of the electro-optic coefficient dispersion in poled polymer materials

Yongqiang Shi, James Bechtel, Srinath Kalluri, William Steier, Chengzeng Xu, Bo Wu, Larry Dalton

Proceedings Volume 2285, (1994) https://doi.org/10.1117/12.187509

KEYWORDS: Polymers, Electrodes, Modulation, Nonlinear optics, Polymer thin films, Absorption, Diffraction gratings, Electro optics, Diffraction, Electroactive polymers

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Proceedings Article | 23 September 1994 Paper

Enhancement of electro-optic properties and temperature stability in sol-gel polymer thin films

Srinath Kalluri, William Steier, Zhixin Yang, Chengzeng Xu, Bo Wu, Larry Dalton, Yongqiang Shi, James Bechtel

Proceedings Volume 2285, (1994) https://doi.org/10.1117/12.187502

KEYWORDS: Sol-gels, Chromophores, Polymers, Second-harmonic generation, Temperature metrology, Nonlinear optics, Signal detection, Glasses, Electro optics, Polymer thin films

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Proceedings Article | 1 June 1994 Paper

Gigabit fiber optic links using compact disc lasers

Wood-Hi Cheng, James Bechtel

Proceedings Volume 2148, (1994) https://doi.org/10.1117/12.176616

KEYWORDS: Compact discs, Fiber lasers, Multimode fibers, Fiber optics, Laser applications, Eye, Semiconductor lasers, Fiber optics tests, Receivers, Silicon

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