Title :
High-extinction ratio and low-loss silica-based 8/spl times/8 thermooptic matrix switch
Author :
Goh, Takashi ; Himeno, Akira ; Okuno, Masayuki ; Takahashi, Hiroshi ; Hattori, Kuninori
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
3/1/1998 12:00:00 AM
Abstract :
A high-extinction ratio and low-loss silica-based 8/spl times/8 thermooptic matrix switch is demonstrated. The 8/spl times/8 matrix switch is realized by using a double Mach-Zehnder interferometer switching unit and a matrix arrangement which reduces the total waveguide length. The average extinction ratio and the average insertion loss are 60.3 and 5.2 dB, respectively.
Keywords :
Mach-Zehnder interferometers; integrated optics; optical communication equipment; optical losses; optical switches; silicon compounds; thermo-optical effects; 5.2 dB; 60.3 dB; 8/spl times/8 matrix switch; average extinction ratio; average insertion loss; double Mach-Zehnder interferometer switching unit; high-extinction ratio; low-loss silica-based 8/spl times/8 thermooptic matrix switch; matrix arrangement; total waveguide length; Communication switching; Extinction ratio; Insertion loss; Optical interferometry; Optical planar waveguides; Optical switches; Optical waveguide components; Optical waveguides; Switching circuits; Transmission line matrix methods;
Journal_Title :
Photonics Technology Letters, IEEE
