Discrete and Fine Wavelength Tunable Thermo-Optic WSS for Low Power Consumption C plus L Band Tunability

作者：Prabhathan Patinharekandy^*; Zhang Jing; Murukeshan Vadakke Matham; Zhang Huijuan; Chen Shiyi

来源：IEEE Photonics Technology Letters, 2012, 24(2): 152-154.

DOI：10.1109/LPT.2011.2174979

• Resonator filters
• silicon devices
• silicon-on-insulator technology
• thermo-optic effects
• wavelength routing

Broadband (similar to C+L band) wavelength tunability is demonstrated in a microring resonator (MRR)-based thermo-optic wavelength selective switch (TO-WSS) with low power consumption and low thermal crosstalk. Instead of direct tuning a single MRR spectrum, the discrete and fine wavelength tunability in a Vernier configured TO-WSS has been used to achieve single wavelength selection over a high free spectral range (FSR). With the observed discrete tunability (7.3 mW/FSR) and fine tunability (5 mW/nm) of the WSS, the power requirement for full C+L band tuning can be reduced to 32.7% of that of a single ring tuning.

• 出版日期2012-1-15
• 单位南阳理工学院