Title :
Optical time-division space switches using tree-structured directional couplers
Author :
Habara, K. ; Kikuchi, K.
Author_Institution :
NTT, Musashino Electrical Communication Laboratory, Musashino, Japan
Abstract :
The letter proposes two optical time-division space-switch structures using tree-structured directional couplers. First-order approximations show that they have an excellent signal/crosstalk ratio and low-loss properties in a large matrix dimension. An experiment on a 4 × 4 switch using Ti:LiNbO3 directional couplers is presented under the 128 Mbit/s condition.
Keywords :
directional couplers; integrated optics; multiplexing equipment; optical communication equipment; optical couplers; time division multiplexing; 128 Mbit/s condition; 4Ã\x974 switch; LinbO3:Ti; TDM; integrated optics; large matrix dimension; low-loss properties; optical communication equipment; time-division space switches; tree-structured directional couplers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850446
