Dong Po, Qian Wei, Liang Hong, Shafiiha Roshanak, Feng Ning-Ning, Feng Dazeng, Zheng Xuezhe, Krishnamoorthy Ashok V, Asghari Mehdi
Kotura Inc., Monterey Park, CA 91754, USA.
Opt Express. 2010 May 10;18(10):9852-8. doi: 10.1364/OE.18.009852.
We present thermally reconfigurable multiplexing devices based on silicon microring resonators with low tuning power and low thermal crosstalk. Micro-heaters on top of the rings are employed to tune the resonant wavelengths through the thermo-optic effect of silicon. We achieve a low tuning power of 21 mW per free spectral range for a single ring by exploiting thermal isolation trenches close to the ring waveguides. Negligible thermal crosstalk is demonstrated for rings spaced by 15 microm, enabling compact multiplexing devices. The tuning time constant is demonstrated to be less than 10 micros.
我们展示了基于硅微环谐振器的热可重构复用器件,其具有低调谐功率和低热串扰。在环的顶部使用微加热器,通过硅的热光效应来调谐谐振波长。通过利用靠近环形波导的热隔离沟槽,我们实现了单个环每自由光谱范围21毫瓦的低调谐功率。对于间距为15微米的环,热串扰可忽略不计,从而实现了紧凑的复用器件。调谐时间常数被证明小于10微秒。