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Proceedings Paper

High-performance electro-optic polymers for high-frequency modulators
Author(s): Geoffrey A. Lindsay; Andrew P. Chafin; Roy Gratz; Richard A. Hollins; Melvin P. Nadler; Eric G. Nickel; John D. Stenger-Smith; Rena Y. Yee; Warren N. Herman; Peter Zarris; Paul R. Ashley
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Paper Abstract

New thermally stable, spin-castable, electro-optic (EO) polymers designed for high frequency optical modulators are reported (the third generation accordion polymers). The softening temperature (the glass transition temperature) is about 240 degrees Celsius, and the upper limit on short term thermal baking stability is about 320 degrees Celsius. The refractive index at 1.3 microns is about 1.73 and fairly birefringent. The second-order nonlinear optic coefficient, d33, of a second generation accordion polymer containing essentially the same chromophore, measured by second- harmonic generation at 1.06 microns, is 120 pm/V (resonance enhanced by the 495 nm absorption). Measurement of the electro-optic coefficient, r33, is in progress. The added thermal stability in these polymers is due to the all- aryl amine electron donor. The molecular topology of the polymer backbone makes it possible for over 85 weight percent of the bulk material to be comprised of EO-active chromophore. The chromophores are configured in a head-to- head mainchain topology. The films are completely amorphous (no microcrystalline scattering sites).

Paper Details

Date Published: 22 January 1997
PDF: 7 pages
Proc. SPIE 3006, Optoelectronic Integrated Circuits, (22 January 1997); doi: 10.1117/12.264248
Show Author Affiliations
Geoffrey A. Lindsay, Naval Air Warfare Ctr. (United States)
Andrew P. Chafin, Naval Air Warfare Ctr. (United States)
Roy Gratz, Mary Washington College (United States)
Richard A. Hollins, Naval Air Warfare Ctr. (United States)
Melvin P. Nadler, Naval Air Warfare Ctr. (United States)
Eric G. Nickel, Emory Univ. (United States)
John D. Stenger-Smith, Naval Air Warfare Ctr. (United States)
Rena Y. Yee, Naval Air Warfare Ctr. (United States)
Warren N. Herman, Naval Air Warfare Ctr. (United States)
Peter Zarris, Naval Air Warfare Ctr. (United States)
Paul R. Ashley, U.S. Army (United States)

Published in SPIE Proceedings Vol. 3006:
Optoelectronic Integrated Circuits
Yoon-Soo Park; Ramu V. Ramaswamy, Editor(s)

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