Open AccessThe theoretical investigation of all-optical polarization switching based on InGaAs(P) Bragg-spaced quantum wells
Author(s) -
Tao Wang,
Gang Li,
Zheng Chen
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.000127
Subject(s) - optics , polarization (electrochemistry) , quantum well , optical switch , materials science , optoelectronics , contrast ratio , optical communication , physics , laser , chemistry
The all-optical polarization switch adopting InGaAsP Bragg-spaced quantum wells (BSQWs) is investigated theoretically because it can be compatible with the optical communication system. The theoretical analysis is based on the transfer matrix approach which provides formalism for studying the optical response of the InGaAsP BSQWs. With this theoretical model we calculate the performance characteristics of the switch, which has a high contrast ratio (~31.1dB), a small insert loss (~13dB), and a small switching energy (~30 M W / cm(2) ). The theory can be used as a basis of experimental research of all-optical spin-dependent polarization switching in BSQWs.