Accession Number : ADA296083

Title :   Study of Photorefractive Fibers for Optical Interconnects, Switchings, Massive Memories, and Optical Properties.

Descriptive Note : Final rept. 20 Jul 91-19 Mar 95,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Yu, Francis T.

PDF Url : ADA296083

Report Date : 24 APR 1995

Pagination or Media Count : 194

Abstract : The objective of this research is to study photorefractive (PR) fibers for optical interconnects, switchings, massive memories, and optical properties. The PR fibers can improve the electro-optic device technology, for which high capacity memories and interconnections can be developed. There are several reasons to select PR fibers over the bulk materials. It is more cost effective in terms of equivalent volume. It is much easier to grow single crystal fibers in long dimension (e.g., 5-10 cm). Because of long length, PR fiber holograms have very high angular and wavelength selectivities. We have, in this research demonstrated that a high capacity fiber-hologram memory can be developed using reflection-type holographic construction strategy. The important aspect of the specially doped Ce:Fe:LiNbO3 fiber is that they have very high photosensitivities such that a low-power visible tunable laser can be used. We have also demonstrated numerous applications, e.g., tunable interconnection network, high density fiber hologram storage, as well as applied to correlators, neural networks and wavelet filtering. (MM)

Descriptors :   *ELECTROOPTICS, *CIRCUIT INTERCONNECTIONS, *OPTICAL SWITCHING, *OPTICAL STORAGE, FIBER OPTICS, LOW POWER, OPTICAL PROPERTIES, FIBERS, NEURAL NETS, TUNABLE LASERS, COST EFFECTIVENESS, SINGLE CRYSTALS, BULK MATERIALS, MEMORY DEVICES, VISIBILITY, HIGH DENSITY, TUNING, DOPING, CROSSTALK, CRYSTAL GROWTH, NETWORK FLOWS, CORRELATORS, HOLOGRAMS.

Subject Categories : Electrooptical and Optoelectronic Devices
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE