High-power, narrow linewidth single-frequency fiber laser at 2 μm

Shuxian Qi; Yubin Hou; Qian Zhang; Pu Wang

doi:10.1117/12.2295108

12 January 2018 High-power, narrow linewidth single-frequency fiber laser at 2 μm

Shuxian Qi, Yubin Hou, Qian Zhang, Pu Wang

Author Affiliations +

Proceedings Volume 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 1061907 (2018) https://doi.org/10.1117/12.2295108
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

We demonstrated an all-fiber single-frequency DBR master oscillator and power amplifier at 1992.6 nm. The maximum output power of the fiber amplifier was 100 W with a slope efficiency of 53% and the optical signal-to-noise ratio was about 50dB. The linewidth was less than 66 kHz and the beam quality factor M² was 1.22 at the maximum output power. The RINs of the seed and the power amplifier were measured to be -120 dB/Hz and -102 dB/Hz at the relaxation oscillation frequency, respectively.

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Shuxian Qi, Yubin Hou, Qian Zhang, and Pu Wang "High-power, narrow linewidth single-frequency fiber laser at 2 μm", Proc. SPIE 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 1061907 (12 January 2018); https://doi.org/10.1117/12.2295108

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