Prof. James T. Yardley Profile

Prof. James T. Yardley

Associate Director at Columbia Univ

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 5 May 1998 Paper

Robust photopolymers for MCM, board, and backplane optical interconnects

Louay Eldada, Ajay Nahata, James Yardley

Proceedings Volume 3288, (1998) https://doi.org/10.1117/12.307584

KEYWORDS: Polymers, Waveguides, Optical fibers, Absorption, Polymer multimode waveguides, Optical interconnects, Refractive index, Photomasks, Glasses, Humidity

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Proceedings Article | 20 April 1998 Paper

Integration of polymeric micro-optical elements with planar waveguiding circuits

Louay Eldada, James Yardley

Proceedings Volume 3289, (1998) https://doi.org/10.1117/12.305476

KEYWORDS: Waveguides, Polymers, Polymer multimode waveguides, Mirrors, Photomasks, Chemical elements, Optical lithography, Lithography, Photomicroscopy, Polymer thick film flex circuits

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Proceedings Article | 17 April 1998 Paper

Polymer integrated optical devices for telecommunications applications

Robert Norwood, Robert Blomquist, Louay Eldada, Cathy Glass, Constantina Poga, Lawrence Shacklette, Baopei Xu, Shing Yin, James Yardley

Proceedings Volume 3281, (1998) https://doi.org/10.1117/12.305408

KEYWORDS: Polymers, Waveguides, Dense wavelength division multiplexing, Humidity, Refractive index, Polymer multimode waveguides, Telecommunications, Optical fibers, Optical components, Absorption

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The success of optical fiber technology continues to enable great advances in telecommunications. Among the more recent commercial developments have included the erbium doped fiber amplifier, 10 GB/sec time division multiplexing, and dense wavelength division multiplexing (DWDM). In the near future two trends will dominate the continued growth of this technology (1) increased optical device functionality and (2) migration of increased bandwidth down to local loop and access levels of the network. Examples of increased functionality will include splitters and DWDMs with increased port counts, wavelength conversion, and matrix optical switching. Migration of bandwidth will require greater volumes of fundamental optical components such as power splitters and WDMs. We will discuss our polymeric optical device technology in light of both current and future telecom needs. We have developed a series of cross-linked polymers with intrinsic losses in the 1.55 micrometer window as low as 0.1 - 0.2 dB/cm. Singlemode waveguides can be made from these materials by photolithography or by molding. Our baseline materials, C20 and C21, are nonhalogenated polymers and exhibit waveguide losses at 1.55 micrometer of 1 to 1.5 dB/cm; by increasing the level of halogenation we can achieve waveguide losses as low as 0.3 dB/cm. These polymers exhibit excellent resistance to adverse environmental conditions, typified by the well-known Bellcore 85 degrees Celsius/85%RH soak test. One X sixteen and 1 X 8 power splitting devices made from C20/C21 have exhibited insertion losses of 11 dB and uniformities of plus or minus 0.3 dB at 1.3 micrometer. We have also invented a passive alignment technology that allows optical fibers to be 'snap-fit' aligned with the optical waveguide, which reduces the difficulty and cost of pigtailing. Finally, we discuss our approach to DWDM which takes advantage of our ability to precisely control the refractive index of our polymers by proper selection of the comonomers.

Proceedings Article | 1 February 1998 Paper

Affordable WDM components: the polymer solution

Louay Eldada, Shing Yin, Robert Norwood, James Yardley

Proceedings Volume 3234, (1998) https://doi.org/10.1117/12.300925

KEYWORDS: Polymers, Wavelength division multiplexing, Waveguides, Polymer multimode waveguides, Data communications, Computer aided design, Single mode fibers, Refractive index, Humidity, Resistance

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Proceedings Article | 13 October 1997 Paper

Polymer optical interconnects: meeting the requirements for datacom and telecom applications

Lawrence Shacklette, Robert Norwood, Louay Eldada, Cathy Glass, Duc Nguyen, Constantina Poga, Baopei Xu, Shing Yin, James Yardley

Proceedings Volume 3147, (1997) https://doi.org/10.1117/12.279315

KEYWORDS: Polymers, Absorption, Waveguides, Polymer multimode waveguides, Optical interconnects, Polymethylmethacrylate, Humidity, Glasses, Refraction, Photorefractive polymers

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Proceedings Article | 29 July 1997 Paper

Next-generation polymeric photonic devices

Louay Eldada, Lawrence Shacklette, Robert Norwood, James Yardley

Proceedings Volume 10290, 102900L (1997) https://doi.org/10.1117/12.279829

KEYWORDS: Polymers, Photonic devices, Polymer multimode waveguides, Waveguides, Polymer thick film flex circuits, Data communications, Single mode fibers, Humidity, Refractive index, Liquids

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Proceedings Article | 4 April 1997 Paper

Design and fabrication of passive optical polymer waveguide components for multimode parallel optical links

Robert Scarmozzino, Richard Osgood, Louay Eldada, James Yardley, Yue Liu, Julian Bristow, Jared Stack, John Rowlette, Yung-Sheng Liu

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271094

KEYWORDS: Waveguides, Polymer multimode waveguides, Polymers, Computer aided design, Beam propagation method, Signal attenuation, Optical interconnects, Optical fibers, Laser sources, Chlorine

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Proceedings Article | 4 April 1997 Paper

Optoelectronic backplane interconnect technology development (POINT)

Yung-Sheng Liu, W. Hennessy, R. Wojnarowski, Julian Bristow, Yue Liu, John Rowlette, Jared Stack, James Yardley, Louay Eldada, Richard Osgood, Robert Scarmozzino, Shin Lee, Susant Patra

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271090

KEYWORDS: Waveguides, Packaging, Polymers, Optoelectronic packaging, Vertical cavity surface emitting lasers, Optical alignment, Polymer multimode waveguides, Transmitters, Optical interconnects, Optoelectronics

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Proceedings Article | 4 April 1997 Paper

Ultra-low-loss polymeric waveguides for optical interconnection

James Yardley, Louay Eldada, Kelly Stengel, Lawrence Shacklette, Robert Norwood, Chengzeng Xu, Chengjiu Wu

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271083

KEYWORDS: Polymers, Absorption, Waveguides, Polymer multimode waveguides, Optical interconnects, Spectroscopy, Refractive index, Polymethylmethacrylate, Scattering, Solids

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Proceedings Article | 22 January 1997 Paper

Advanced polymer systems for optoelectronic integrated circuit applications

Louay Eldada, Kelly Stengel, Lawrence Shacklette, Robert Norwood, Chengzeng Xu, Chengjiu Wu, James Yardley

Proceedings Volume 3006, (1997) https://doi.org/10.1117/12.264235

KEYWORDS: Waveguides, Polymers, Absorption, Refractive index, Polymer multimode waveguides, Humidity, Receivers, Optical fibers, Photomasks, Glasses

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Proceedings Article | 1 May 1996 Paper

Polymer optical interconnection technology: toward WDM applications

Robert Norwood, Louay Eldada, Stephen Emo, Jeff Gustus, R. Rapoport, Kelly Stengel, Lawrence Shacklette, Chengjiu Wu, Chengzeng Xu, James Yardley

Proceedings Volume 2690, (1996) https://doi.org/10.1117/12.238910

KEYWORDS: Polymers, Waveguides, Wavelength division multiplexing, Polymer multimode waveguides, Absorption, Optical fibers, Sensors, Lithography, Aerospace engineering, Refractive index

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Proceedings Article | 30 January 1996 Paper

Polymer optical interconnect technology (POINT): optoelectronic packaging and interconnect for board and backplane applications

Y. S. Liu, R. Wojnarowski, W. Hennessy, Julian P. Bristow, Yue Liu, Andrzej Peczalski, John Rowlette, Alan Plotts, Jared Stack, James Yardley, Louay Eldada, Richard Osgood, Robert Scarmozzino, Sing Lee, Volkan Ozguz

Proceedings Volume 10284, 102840N (1996) https://doi.org/10.1117/12.229274

KEYWORDS: Polymers, Optical interconnects, Optoelectronic packaging, Optoelectronics, Packaging, Diffractive optical elements, Amplifiers, Vertical cavity surface emitting lasers, Optical alignment, Computer simulations

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Proceedings Article | 22 May 1995 Paper

Polymeric waveguides for optical backplanes

Lawrence Shacklette, Kelly Stengel, Louay Eldada, Chengzeng Xu, James Yardley

Proceedings Volume 2467, (1995) https://doi.org/10.1117/12.210076

KEYWORDS: Waveguides, Polymers, Polymer multimode waveguides, Connectors, Glasses, Cladding, Multimode fibers, Resistance, Thin films, Temperature metrology

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Proceedings Article | 23 September 1994 Paper

High-temperature thermoplastic polymers for electro-optic applications

Chengjiu Wu, Ajay Nahata, Victor Lu, Jianhui Shan, Charles Knapp, James Yardley

Proceedings Volume 2285, (1994) https://doi.org/10.1117/12.187532

KEYWORDS: Polymers, Electro optics, Chromophores, Electro optic polymers, Temperature metrology, Absorption, Absorbance, Ultraviolet radiation, Glasses, Data modeling

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Proceedings Article | 20 January 1994 Paper

Optical characterization of azo dye-based electro-optic polymer films

Paul Ferm, Keith Horn, Karl Beeson, Michael McFarland, David Schwind, James Yardley

Proceedings Volume 2042, (1994) https://doi.org/10.1117/12.166318

KEYWORDS: Absorption, Waveguides, Polymers, Electro optics, Electro optic polymers, Spectroscopy, Chromophores, Ultraviolet radiation, Visible radiation, Quantum efficiency

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Proceedings Article | 16 December 1993 Paper

Polymeric electro-optic materials and devices: meeting the challenges of practical applications

Karl Beeson, Paul Ferm, Keith Horn, Charles Knapp, Michael McFarland, Ajay Nahata, Jianhui Shan, Chengjiu Wu, James Yardley

Proceedings Volume 2025, (1993) https://doi.org/10.1117/12.165288

KEYWORDS: Polymers, Electro optics, Electro optic polymers, Absorption, Chromophores, Molecules, Refractive index, Waveguides, Glasses, Geometrical optics

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Proceedings Article | 6 April 1993 Paper

Laser-written polymeric optical waveguides for integrated optical device applications

Karl Beeson, Michael McFarland, William Pender, Jianhui Shan, Chengjiu Wu, James Yardley

Proceedings Volume 1794, (1993) https://doi.org/10.1117/12.141906

KEYWORDS: Waveguides, Polymers, Refractive index, Polymer multimode waveguides, Stars, Ultraviolet radiation, Photonic integrated circuits, Fabrication, Optical circuits, Cladding

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Proceedings Article | 25 February 1993 Paper

Loss measurements in electro-optic polymer waveguides

Karl Beeson, Paul Ferm, Keith Horn, Michael McFarland, Ajay Nahata, Jianhui Shan, Chengjiu Wu, James Yardley

Proceedings Volume 1775, (1993) https://doi.org/10.1117/12.139190

KEYWORDS: Waveguides, Absorption, Ultraviolet radiation, Channel waveguides, Electro optic polymers, Visible radiation, Electro optics, Polymers, Organic materials, Electrodes

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Proceedings Article | 1 December 1991 Paper

Photochemical delineation of waveguides in polymeric thin films

Karl Beeson, Keith Horn, Christina Lau, Michael McFarland, David Schwind, James Yardley

Proceedings Volume 1559, (1991) https://doi.org/10.1117/12.50676

KEYWORDS: Polymers, Waveguides, Refractive index, Scanning probe lithography, Polymer thin films, Thin films, Chromophores, Absorption, Physics, Chemistry

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Proceedings Article | 1 December 1991 Paper

Polymeric optical waveguides for device applications

Michael McFarland, Karl Beeson, Keith Horn, Ajay Nahata, Chengjiu Wu, James Yardley

Proceedings Volume 1583, (1991) https://doi.org/10.1117/12.50904

KEYWORDS: Polymers, Waveguides, Electro optics, Refractive index, Photonic integrated circuits, Mach-Zehnder interferometers, Modulation, Electrodes, Switches, Electro optic polymers

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Proceedings Article | 1 February 1991 Paper

Photochemical formation of polymeric optical waveguides and devices for optical interconnection applications

Karl Beeson, Keith Horn, Michael McFarland, Chengjiu Wu, James Yardley

Proceedings Volume 1374, (1991) https://doi.org/10.1117/12.24969

KEYWORDS: Waveguides, Polymers, Absorption, Ultraviolet radiation, Integrated optics, Refractive index, Refraction, Optical interconnects, Optoelectronics, Polymer multimode waveguides

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Proceedings Article | 1 December 1990 Paper

Polymeric materials for guided wave devices

Karl Beeson, Keith Horn, Michael McFarland, Ajay Nahata, Chengjiu Wu, James Yardley

Proceedings Volume 1337, (1990) https://doi.org/10.1117/12.22946

KEYWORDS: Polymers, Refractive index, Waveguides, Electro optics, Absorption, Electro optic polymers, Organic materials, Photorefractive polymers, Polymethylmethacrylate, Oscillators

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Proceedings Article | 1 December 1990 Paper

All-optical switching by organic nonlinearly absorbing molecules

Karl Beeson, James Yardley, Shammai Speiser

Proceedings Volume 1337, (1990) https://doi.org/10.1117/12.22963

KEYWORDS: Spatial light modulators, Absorption, Organic materials, Waveguides, Switching, Molecules, Modulation, Switches, Silicon, Semiconducting wafers

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Showing 5 of 23 publications

Conference Committee Involvement (4)

Nanoengineering: Fabrication, Properties, Optics, and Devices II

3 August 2005 | San Diego, California, United States

Nanoengineering: Fabrication, Properties, Optics, and Devices

4 August 2004 | Denver, Colorado, United States

Optoelectronic Integrated Circuits VII

30 January 2003 | San Jose, CA, United States

Photonic Integrated Systems

28 January 2003 | San Jose, CA, United States

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