Accession Number:

ADA285310

Title:

A Novel Optic Bistable Device with Very Low Threshold Intensity Using Photorefractive Films

Descriptive Note:

Final rept.

Corporate Author:

BRIMROSE CORP OF AMERICA BALTIMORE MD

Report Date:

1994-08-13

Pagination or Media Count:

26.0

Abstract:

Brimrose Corporation of America reports the successful completion of the SBIR Phase I research in low-threshold intensity optical bistable devices using photorefractive nonlinearity. A thin photorefractive film optical bistable device was proposed in the Phase I proposal. The feasibility of this device was theoretically investigated. The theoretical feasibility study formulates the materials requirements in such a kind of configuration for Phase II research. In addition, we have proposed and investigated another configuration of optical bistable devices that do not require advanced photorefractive materials, namely, the self-pumped phase conjugator. We have successfully demonstrated a low- threshold optical bistable operation in a KNSBNCU crystal. To the best of our knowledge, the threshold of 650 mWsq. cm is the lowest of its kind to be achieved so far. Optical communications, Bistability, Two-beam coupling, Photofractivity, Optical computing, Neural network

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE