Xu Qianfan, Almeida Vilson R, Lipson Michal
School of Electrical and Computer Engineering, Cornell University, 411 Phillips Hall, Ithaca, New York 14853, USA.
Opt Lett. 2005 Jan 1;30(1):35-7. doi: 10.1364/ol.30.000035.
We show high Raman gain in a silicon submicrometer-size planar waveguide. Using high-confinement structures and picosecond pump pulses, we show 3.1-dB net internal gain with 2.8-W peak pump power in a 7-mm-long waveguide. We also analyze experimentally and theoretically the effect of free-carrier absorption on the Raman gain.
我们展示了硅亚微米尺寸平面波导中的高拉曼增益。通过使用高限制结构和皮秒泵浦脉冲,我们在一个7毫米长的波导中,以2.8瓦的峰值泵浦功率实现了3.1分贝的净内部增益。我们还通过实验和理论分析了自由载流子吸收对拉曼增益的影响。