Title :
Design and realization of an integrated optic switch for crossbar switching arrays
Author :
Bülow, Henning ; Aretz, Kurt
Author_Institution :
Inst. fur Hochfrequenztech., Tech Univ., Berlin, West Germany
fDate :
12/1/1989 12:00:00 AM
Abstract :
An electrooptic switch that is insensitive to parameter tolerances is proposed for use in crossbar switching arrays. It makes use of intrinsically mismatched and tapered directional couplers and allows the realization of switching arrays with the same switching voltage for each element. Computations are carried out to verify a realization with Ti:LiNbO3 waveguides and to compare the latter with conventional directional couplers. Switching elements on Z-cut LiNbO3 with a crosstalk of -27 dB for zero voltage and a switching voltage of 27.5 V have been realized for use at 1.3 μm
Keywords :
directional couplers; electro-optical devices; integrated optics; lithium compounds; optical communication equipment; optical couplers; optical switches; optical waveguides; titanium; 1.3 micron; 27 dB; 27.5 V; LiNbO3:Ti; crossbar switching arrays; electrooptic switch; integrated optic switch; mismatched directional couplers; tapered directional couplers; Directional couplers; Integrated optics; Optical arrays; Optical attenuators; Optical crosstalk; Optical design; Optical sensors; Optical switches; Optical waveguides; Zero voltage switching;
Journal_Title :
Lightwave Technology, Journal of
