Title :
Low-drive-voltage 8*8 Ti:LiNbO3 switch with simplified tree structure
Author :
Matoba, Akihisa ; Okayama, Hideaki ; Shibuya, Ryota ; Ishida, Tomoyuki
Author_Institution :
Oki Electr. Co. Ltd., Tokyo, Japan
Abstract :
A strictly nonblocking 8*8 switch matrix was fabricated with a simplified configuration. In this configuration, 40 directional coupler switches and 24 passive combiners are integrated in five ranks in a single chip. Owing to the reduced number of ranks, a switch element as long as 9 mm can be incorporated and a switching voltage of 11 V was obtained at a wavelength of 1.3 mu m.
Keywords :
electro-optical devices; integrated optics; lithium compounds; optical communication equipment; optical couplers; optical switches; titanium; 1.3 micron; 11 V; 9 mm; LiNbO 3:Ti; directional coupler switches; five ranks; integrated optics; nonblocking 8*8 switch matrix; optical switching; passive combiners; simplified configuration; single chip; switch element; switching voltage; wavelength;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890119
