Abstract

A 1 × 2 wavelength-selective optical switch for three-channel wavelength-division multiplexing systems is proposed and tested. The switch is constructed by a cascade connecting three switch elements, each of which controls the polarization state of a certain wavelength of light. A 1 × 2 switch for a three-channel multimode fiber system (channel wavelengths 1.2, 1.25, and 1.3 μm) is fabricated. Its measured insertion losses and cross-talk attenuations are <0.9 and >14.7 dB, respectively, for all switching modes and all channels.

© 1989 Optical Society of America

A 1 × 2 wavelength selective switch utilizing the Pockels and twisted-nematic effects

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Appl. Opt. 28(23) 4968-4969 (1989)

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