Title :
Rearrangeable nonblocking thermo-optic 4×4 switching matrix in silicon-on-insulator
Author :
Wang, Z. ; Fan, Z. ; Xia, J. ; Chen, S. ; Yu, J.
Author_Institution :
State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China
fDate :
6/3/2005 12:00:00 AM
Abstract :
A rearrangeable nonblocking thermo-optic 4 × 4 switching matrix is demonstrated. The matrix, which consists of five 2 × 2 multimode interference-based Mach-Zehnder interferometer (MMI-MZI) switch elements, is fabricated in silicon-on-insulator waveguide system. The average excess loss for the optical path experiencing 2 and 3 switch elements is 6.6 and 10.1 dB respectively. The crosstalk in the matrix is measured to be between -12 and -19 dB. The switching time of the device is less than 30 μs.
Keywords :
Mach-Zehnder interferometers; optical communication equipment; optical crosstalk; optical fabrication; optical switches; optical waveguides; silicon-on-insulator; thermo-optical effects; 10.1 dB; 2 × 2 multimode interference-based Mach-Zehnder interferometer; 6.6 dB; crosstalk; rearrangeable nonblocking thermo-optic 4×4 switching matrix; silicon-on-insulator waveguide system;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:20059026
