Accession Number : ADP008662

Title :   A 4x4 Photorefractive Reconfigurable Interconnect Using Laser Diodes,

Corporate Author : ROCKWELL INTERNATIONAL THOUSAND OAKS CA SCIENCE CENTER

Personal Author(s) : Chiou, Arthur E. ; Yeh, Pochi

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : Reconfigurable optical interconnection capable of partial or full broadcasting plays a key role in optical computing and optical neural network. The interconnection can be implemented using optical matrix-vector multiplication. The reconfigurability is achieved by changing the interconnection matrix written on a spatial light modulator (SLM). For a one-to-one permutation link of an array of N detectors, such an approach suffers a 1/N intrinsic fanout loss. In this paper, we report the demonstration and characterization of a 4x4 reconfigurable interconnection using two laser diodes (780nm) and a ferroelectric liquid crystal spatial light modulator (FLCSLM) in conjunction with a photorefractive barium titanate crystal. Specifically, we compare the energy efficiency and crosstalk of this new approach with those of the conventional approach.

Descriptors :   *INTERFACES, *LIGHT MODULATORS, *LASER COMPONENTS, *FERROELECTRIC CRYSTALS, *LIQUID CRYSTALS, OPTICAL PROCESSING, SYSTEMS APPROACH, OPTICAL PROPERTIES.

Subject Categories : Electrooptical and Optoelectronic Devices
      Optics
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE