All-Optical Logic Elements Containing Nonlinear Material

YABU Tetsuro, NISHIDA Kazuhiro, GESHIRO Masahiro, SAWA Shinnosuke

All-Optical Logic Elements Containing Nonlinear Material

YABU Tetsuro

School of Engineering, Osaka Prefecture University
NISHIDA Kazuhiro

Mitsubishi Eelctric Corporation, Communication Systems Center,
GESHIRO Masahiro

School of Engineering, Osaka Prefecture University
SAWA Shinnosuke

School of Engineering, Osaka Prefecture University

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説明

In this study we propose and analyze new structures for alloptical logic consisting of nonlinear material whose refractive index changes depending on optical intensity. All-optical logic elements usually mix more than one beam oflightwave. Most of previously proposed devices require precise phase control between the light beams. However, it is very hard to fix the relative phase difference between the light beams. Our proposing all-optical logic elements, which operate with monochromatic lightwaves, perform well in any phase condition of lightwaves.