A single mode fibre laser by applying self-injection locking with a DFB structure

作者：Gu Chun^*; Xu Li Xin; Ming Hai

来源：Chinese Physics Letters, 2008, 25(6): 2045-2047.

We report a novel single-frequency fibre ring laser using self-injection locking with a distributed-feedback (DFB) fibre laser at 1550 nm. The operating wavelength is controlled by a saturable absorber and a DFB fibre laser in the ring cavity, the saturable absorber acts as a narrow band-pass filter. In the primary experiment, the laser output exceeds 100 mW with the linewidth less than 2 kHz. The laser is stable, and no mode-hopping is observed within eight hours. Compared with other cavity designs using spatial hole-burning, our laser shows high controllability.

• 出版日期2008-6
• 单位中国科学技术大学