Dynamic Holographic Interconnections Using Photorefractive Crystals

J. Wilde; R. McRuer; L. Hesselink; J. Goodman

doi:10.1117/12.939928

11 August 1987 Dynamic Holographic Interconnections Using Photorefractive Crystals

J. Wilde, R. McRuer, L. Hesselink, J. Goodman

Proceedings Volume 0752, Digital Optical Computing; (1987) https://doi.org/10.1117/12.939928
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

Dynamic global interconnections between processors in massively parallel computers are a highly desirable feature. Their implementation would greatly increase performance because large bandwidth interprocessor communication links may be reconfigured to match problem geometries. Global hardwiring of interconnects for large processor arrays is cumbersome, and present systems use rather tedious packet routing virtual interconnects. This report presents a novel design concept for a dynamic optical interconnect which would create a holographic interconnect between any two (or more) processors upon request. Each processor has a detector and a light source. A hologram may then be written into a nonlinear crystal which will diffract modulated light from a source at one processor to detectors at any other processors which desire that communication link. Writing is a two step process using a phase conjugate mirror and requiring the light sources of the involved processors to be mutually coherent. Preliminary analysis of this system along with an experimental proof of concept is discussed.

Citation Download Citation

J. Wilde, R. McRuer, L. Hesselink, and J. Goodman "Dynamic Holographic Interconnections Using Photorefractive Crystals", Proc. SPIE 0752, Digital Optical Computing, (11 August 1987); https://doi.org/10.1117/12.939928

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