Title :
Low-loss and high-extinction-ratio silica-based strictly nonblocking 16/spl times/16 thermooptic matrix switch
Author :
Goh, Takashi ; Yasu, Mitsuho ; Hattori, Kuninori ; Himeno, Akira ; Okuno, Masayuki ; Ohmori, Yasuji
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
6/1/1998 12:00:00 AM
Abstract :
A low-loss and high-extinction-ratio silica-based 16/spl times/16 thermooptic matrix switch is demonstrated. The switch, which employs a double Mach-Zehnder interferometer switching unit and a matrix arrangement which reduces the total waveguide length, is fabricated with 0.75% refractive index difference waveguides on a 6-in silicon wafer. The average insertion loss and the average extinction ratio are 6.6 and 55 dB, respectively. The total power consumption is 17 W.
Keywords :
Mach-Zehnder interferometers; electro-optical switches; integrated optoelectronics; optical losses; optical planar waveguides; refractive index; silicon compounds; thermo-optical effects; 17 W; 6.6 dB; average extinction ratio; average insertion loss; double Mach-Zehnder interferometer switching unit; low-loss high-extinction-ratio silica-based strictly nonblocking 16/spl times/16 thermooptic matrix switch; matrix arrangement; refractive index difference waveguides; total power consumption; total waveguide length; Communication switching; Extinction ratio; Insertion loss; Optical fiber polarization; Optical losses; Optical switches; Optical waveguides; Propagation losses; Switching circuits; Transmission line matrix methods;
Journal_Title :
Photonics Technology Letters, IEEE
