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A Single Mode Fibre Laser by Applying Self-Injection Locking with a DFB Structure |
| GU Chun;XU Li-Xin;MING Hai |
| University of Science and Technology of China, Hefei 230026 |
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| Cite this article: |
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GU Chun, XU Li-Xin, MING Hai 2008 Chin. Phys. Lett. 25 2045-2047 |
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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.
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| Keywords:
42.55.Wd
42.55.Xi
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Received: 10 March 2008
Published: 31 May 2008
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