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

Volume

7

Issue

12

fYear

1989

fDate

12/1/1989 12:00:00 AM

Firstpage

2003

Lastpage

2008

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.41621

Filename

41621