A Single Mode Fibre Laser by Applying Self-Injection Locking with a DFB Structure  

作　　者：顾春 许立新 明海 

机构地区：[1]University of Science and Technology of China, Hefei 230026

出　　处：《Chinese Physics Letters》2008年第6期2045-2047,共3页中国物理快报（英文版）

摘　　要：We report a novel single-frequency fibre ring laser using self-injection locking with a distributed-feedback （DFB） fibre laser at 1550nm. 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 100mW with the linewidth less than 2kHz. 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.We report a novel single-frequency fibre ring laser using self-injection locking with a distributed-feedback （DFB） fibre laser at 1550nm. 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 100mW with the linewidth less than 2kHz. 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.

关 键 词：NARROW-LINEWIDTH SATURABLE-ABSORBER DOPED FIBER LOW-NOISE 

分 类 号：TN248[电子电信—物理电子学]