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Proceedings Paper

Development Of An Integrated-Optics Multichannel Data Processor
Author(s): D. W. Vahey; C. M. Verber; R. P. Kenan
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Paper Abstract

An integrated optical system for comparing one set of voltage signals to a reference set will be described. The processor utilizes a hologram written in an outdiffused LiNb03 waveguide to effectively subtract the input signal voltage set from one or many reference sets as a means of pattern recognition. Parallel processing in a one-dimensional format should make possible comparison rates of 100 MHz for data sets containing as many as 100 information channels. The envisioned system contains the following components: A end-fired laser, a metallized-photoresist grating beam splitter and two polished-edge mirrors to form an integrated interferometer, a waveguide hologram in the area of beam recombination, and a lens to project the processed beam onto a butt-coupled detector. In the reference arm of the interferometer, a simple electrode pair is utilized to generate the phase shift required for holographic subtraction, while in the signal arm, a more complicated N-channel electrode structure is employed to electrooptically convert voltage information to spatial phase information on the guided wave. Efforts to build and characterize a three-channel system with integrated beam splitter, mirror, electrodes, and hologram are presented.

Paper Details

Date Published: 13 July 1978
PDF: 8 pages
Proc. SPIE 0139, Guided Wave Optical Systems and Devices I, (13 July 1978); doi: 10.1117/12.956258
Show Author Affiliations
D. W. Vahey, Battelle Columbus Laboratories (United States)
C. M. Verber, Battelle Columbus Laboratories (United States)
R. P. Kenan, Battelle Columbus Laboratories (United States)

Published in SPIE Proceedings Vol. 0139:
Guided Wave Optical Systems and Devices I
Elsa M. Garmire, Editor(s)

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