Low-cross-talk 2 × 2optical switch
- 1 June 1981
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 6 (6) , 275-277
- https://doi.org/10.1364/ol.6.000275
Abstract
An electro-optical 2 × 2 switch for fiber-optic applications has been developed. Optical cross talk is reduced significantly by inserting two 2 × 1 switches in each optical path. A compact structure is used to contain the four 2 × 1’s that are required. We observed −27-dB cross talk and 2.5-dB insertion loss in both switching states. The device is controlled by a 5-V twisted-nematic liquid-crystal cell. Multimode, unpolarized light is switched.Keywords
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