Title :
A low crosstalk microoptic liquid crystal switch
Author :
Skinner, J. ; Lane, C.H.R.
Author_Institution :
GEC Res. Ltd., London, UK
fDate :
8/1/1988 12:00:00 AM
Abstract :
A total internal reflection liquid crystal optical switch has been developed which gives crosstalk levels of -33 dB and switching speeds of 4 ms, with low operating voltage. A novel architecture for larger switch arrays is also proposed and prototype device constructed and tested. The effects of modulation on the optical carrier by the electrical drive signal, and methods of minimizing its effect are reported. Finally, a novel space-saving architecture is proposed and demonstrated for 4×4 switch arrays and its performance reported
Keywords :
crosstalk; liquid crystal devices; optical communication equipment; 4 ms; electrical drive signal; low crosstalk microoptic liquid crystal switch; modulation; optical carrier; switch arrays; total internal reflection; Liquid crystal devices; Liquid crystals; Microoptics; Optical crosstalk; Optical losses; Optical modulation; Optical reflection; Optical refraction; Optical switches; Optical variables control;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
