Accession Number : ADA307495

Title :   Spectral Logic Inversion Using Optical Wave Mixing.

Descriptive Note : Final rept. 15 Jul 91-30 Nov 95,

Corporate Author : CALIFORNIA UNIV SANTA BARBARA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING

Personal Author(s) : Yeh,

PDF Url : ADA307495

Report Date : 30 NOV 1995

Pagination or Media Count : 13

Abstract : The main objective of the program is to utilize nonlinear optical wave mixing for spectrally parallel logic operations. In this program, we are investigating the parallel processing of information in the spectral domain. Specifically, we are investigating the optical implementation of spectrally parallel logic operations, including AND, XOR operations and logic inverter (also known as X-gates for set difference logic operations) using optical four wave mixing in nonlinear media such as photorefractive crystals, Kerr media. The spectral logic inverter, for example, can convert the spectrally encoded word of (1001) into a spectrally encoded word of (0110). In addition, we have also developed several new concepts in optical logic operations and optical computing. These include multiwavelength optical full adder with carry generation, multiwavelength full adder with polarization encoding scheme, modified signed digit arithmetic for multi-input digital optical computing, multiwavelength multiple beam splotters, optical fuzzy set reasoning, etc.

Descriptors :   *GATES(CIRCUITS), *CIRCUIT INTERCONNECTIONS, *OPTICAL CIRCUITS, POLARIZATION, REASONING, PARALLEL PROCESSING, NONLINEAR OPTICS, FOUR WAVE MIXING, CODING, LOGIC CIRCUITS, FUZZY SETS, PHOTOREFRACTIVE MATERIALS, INVERTERS, INFORMATION PROCESSING, KERR MAGNETOOPTICAL EFFECT.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE