Title :
Mach Zehnder interferometer optical switch using phase-change material
Author :
Jain, Paril ; Tanaka, Daiki ; Tsuda, Hiroyuki
Author_Institution :
Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan
Abstract :
We report a small, self-holding 2×2 Mach Zehnder Interferometer (MZI) type optical switch by depositing a thin film of low-loss GeTe phase-change material (PCM) on both arms of the MZI. The loss and crosstalk in cross state were 0.5 dB and -34 dB and in the bar state 3.45 dB and -10.3 dB respectively. Extinction ratio of more than 13 dB and 31 dB is obtained in the cross and bar states respectively. The proposed switch has operating wavelength range of 80 nm.
Keywords :
Mach-Zehnder interferometers; optical switches; phase change materials; GeTe; Mach Zehnder interferometer; loss 0.5 dB; loss 3.45 dB; optical switch; phase-change material; thin film; wavelength 80 nm; Crosstalk; Extinction ratio; Insertion loss; Optical switches; Optical waveguides; Phase change materials; Mach Zehnder Interferometer; extinction ratio; optical switch; phase-change material;
Conference_Titel :
Photonics in Switching (PS), 2012 International Conference on
Conference_Location :
Ajaccio
