Title :
Low-crosstalk 2*3 optical switch composed of twisted nematic liquid crystal cells
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
fDate :
6/1/1993 12:00:00 AM
Abstract :
A low-crosstalk structure for a 2*2 optical switch using twisted nematic liquid crystal (TN-LC) cells is proposed. Low crosstalk can be obtained by alternately arranging three TN-LC cells and two walkoff polarizing beam splitters. A 2*2 optical switch is assembled with single-mode fibers. Its insertion loss and crosstalk, in both switching modes, are >
Keywords :
crosstalk; liquid crystal devices; nematic liquid crystals; optical communication equipment; optical switches; 2*3 optical switch; 2.2 dB; 43.3 dB; insertion loss; low-crosstalk structure; optical fibres; single-mode fibers; switching modes; twisted nematic liquid crystal; walkoff polarizing beam splitters; Birefringence; Crosstalk; Insertion loss; Liquid crystals; Mirrors; Optical fiber communication; Optical fiber polarization; Optical losses; Optical polarization; Optical switches;
Journal_Title :
Photonics Technology Letters, IEEE
