Optically Tunable Delay Line in Silicon Microring Resonator Based on Thermal Nonlinear Effect
Optically Tunable Delay Line in Silicon Microring Resonator Based on Thermal Nonlinear Effect
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DOI：
10.1109/jstqe.2008.916240
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发表时间：
2008-06
影响因子：
4.9
通讯作者：
Fangfei Liu;Qiang Li;Ziyang Zhang;M. Qiu;Yikai Su
中科院分区：
文献类型：
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作者：
Fangfei Liu;Qiang Li;Ziyang Zhang;M. Qiu;Yikai Su
我们在一个半径为20米的硅微环谐振器中实验证明了光可调谐延迟线。延迟调谐机制是基于热非线性效应引起的共振红移。我们研究了三种调制格式——非归零（NRZ）、归零（RZ）和差分相移键控（DPSK）信号在不同数据速率下的延迟性能。通过对连续波（CW）泵浦的功率进行极低的调谐阈值控制，实现了延时可调，可用于基于微谐振器的慢光结构。
We experimentally demonstrate optically tunable delay line in a silicon microring resonator with a 20- m radius. The delay-tuning mechanism is based on the red shift of the resonance induced by thermal nonlinear effect. We investigate the delay performance of three modulation formats-non-return-to-zero (NRZ), return-to-zero (RZ), and differential phase-shift keying (DPSK) signals at different data rates. Tunable delay is achieved by controlling the power of the continuous-wave (CW) pump with very low tuning threshold, which could be used in microring-resonator-based slow-light structure.