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Proceedings Paper

Optically programmable gate array
Author(s): Jose Mumbru; George Panotopoulos; Demetri Psaltis; Xin An; Fai H. Mok; Suat U. Ay; Sandor L. Barna; Eric R. Fossum
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Paper Abstract

The Optically Programmable Gate Array (OPGA), an optical version of a conventional FPGA, benefits from a direct parallel interface between an optical memory and a logic circuit. The OPGA utilizes a holographic memory accessed by an array of VCSELs to program its logic. An active pixel sensor array incorporated into the OPGA chip makes it possible to optically address the logic in a very short time allowing for rapid dynamic reconfiguration. Combining spatial and shift multiplexing to store the configuration pages in the memory, the OPGA module can be made compact. The reconfiguration capability of the OPGA can be applied to solve more efficiently problems in pattern recognition and database search.

Paper Details

Date Published: 24 May 2000
PDF: 9 pages
Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); doi: 10.1117/12.386900
Show Author Affiliations
Jose Mumbru, California Institute of Technology (United States)
George Panotopoulos, California Institute of Technology (United States)
Demetri Psaltis, California Institute of Technology (United States)
Xin An, Holoplex Inc. (United States)
Fai H. Mok, Holoplex Inc. (United States)
Suat U. Ay, Photobit Corp. (United States)
Sandor L. Barna, Photobit Corp. (United States)
Eric R. Fossum, Photobit Corp. (United States)

Published in SPIE Proceedings Vol. 4089:
Optics in Computing 2000
Roger A. Lessard; Tigran V. Galstian, Editor(s)

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