Title :
A wide-angle X-junction polymeric thermooptic digital switch with low crosstalk
Author :
Hau Ping Chan ; Chow, C.K. ; Das, A.K.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, China
Abstract :
We present our recent design of a wide-angle asymmetric X-junction for the implementation of a digital-optical switch. The simulated crosstalk in the OFF and ON states are -28 and -26 dB, respectively, at an X-branching angle of 1/spl deg/. Polymeric material benzocyclobutene was used to fabricate our design and its switching property was demonstrated using the thermooptic effect. The measured crosstalk is approximately -24 dB in both states with rise-time and fall-time 140 and 210 μs, respectively.
Keywords :
electro-optical switches; optical communication equipment; optical crosstalk; optical design techniques; optical polymers; symmetry; 140 mus; 210 mus; OFF states; ON states; X-branching angle; asymmetric X-junction; crosstalk; digital-optical switch; fall-time; low crosstalk; polymeric material benzocyclobutene; rise-time; simulated crosstalk; switching property; wide-angle X-junction polymeric thermooptic digital switch; Communication switching; Crosstalk; Optical interferometry; Optical materials; Optical switches; Optical waveguides; Polymers; Thermal conductivity; Thermooptical devices; Waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.816131
