Abstract

Three blocks of birefringent calcite and two 6-V twisted nematic liquid-crystal cells have been used to make a 2 × 2 optical bypass switch for series-type fiber-optic networks. Optical cross-talk levels of −32 dB have been obtained in both states. The insertion loss was 3 dB in a nonoptimized switch.

© 1982 Optical Society of America

Low-cross-talk 2 × 2optical switch

Richard A. Soref
Opt. Lett. 6(6) 275-277 (1981)

Polarization-independent liquid-crystal optical attenuator for fiber-optics applications

Eric G. Hanson
Appl. Opt. 21(7) 1342-1344 (1982)

Design and evaluation of low-cross-talk twisted nematic liquid-crystal cells for optical switches

Kazuo Kimura, Noboru Naito, Seiiti Shirai, and Noriyoshi Yamauchi
Opt. Lett. 17(23) 1647-1649 (1992)

Liquid-crystal fiber-optic switch

Richard A. Soref
Opt. Lett. 4(5) 155-157 (1979)

High-optical-isolation low-loss moderate-switching-speed nematic liquid-crystal optical switch

Nabeel A. Riza
Opt. Lett. 19(21) 1780-1782 (1994)