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.
Abstract：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.
GU Chun;XU Li-Xin;MING Hai. A Single Mode Fibre Laser by Applying Self-Injection Locking with a DFB Structure[J]. 中国物理快报, 2008, 25(6): 2045-2047.
GU Chun, XU Li-Xin, MING Hai. A Single Mode Fibre Laser by Applying Self-Injection Locking with a DFB Structure. Chin. Phys. Lett., 2008, 25(6): 2045-2047.
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2008, Vol. 25 
