期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 24, 期 2, 页码 152-154出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2011.2174979
关键词
Resonator filters; silicon devices; silicon-on-insulator technology; thermo-optic effects; wavelength routing
资金
- ARC [3/08]
- NTU-RSS
- NTU-IME CRP
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.
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