A low-pump-threshold photonic crystal fibre Raman laser

作者:Yan, Pei Guang*; Ruan, Shuang Chen; Guo, Chun Yu; Yu, Yong Qin; Hong, Su; Liu, Cheng Xiang
来源:Chinese Physics Letters, 2006, 23(11): 2972-2973.

摘要

We investigate a photonic crystal fibre Raman laser using fibre Bragg grating pairs as cavity mirrors. The threshold pump power is up to 0.65 W by decreasing the cavity loss and using a photonic crystal fibre with high Raman gain coefficient. A maximum continuous-wave output power of 2.7 W is obtained at the maximum incident pump power of 5.6 W. The corresponding optical conversion efficiency and the slope efficiency are about 48% and 56% respectively.