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Power scaling and spectral linewidth suppression of hybrid Brillouin/thulium fiber laser.
Optics Express ( IF 3.2 ) Pub Date : 2020-02-03 , DOI: 10.1364/oe.379013
Chaodu Shi , Quan Sheng , Shijie Fu , Shuai Sun , Junxiang Zhang , Wei Shi , Jianquan Yao

In this paper, an ultra-narrow linewidth hybrid Brillouin/thulium fiber laser (BTFL) was demonstrated. By optimizing the output coupling, pump scheme, fiber length and Brillouin pump power for the linewidth narrowing, 344-mW output power with a narrow linewidth of 0.93 kHz was obtained from the BTFL, in which the linewidth of Stokes light was suppressed more than 43 times compared with the 40 kHz linewidth of the Brillouin pump. Besides, the influences of output coupling and pump scheme on the power and linewidth behavior of a single-frequency BTFL were also experimentally investigated, and there exists a performance balance among linewidth narrowing, output power and SBS threshold. The output coupling exerted a significant influence on the BTFL performance.

中文翻译:

布里渊/ th光纤混合激光器的功率定标和谱线宽度抑制。

在本文中,展示了一种超窄线宽布里渊/ hybrid光纤混合激光器(BTFL)。通过优化输出耦合,泵浦方案,光纤长度和布里渊泵浦功率以缩小线宽,从BTFL获得了344mW的窄线宽0.93 kHz的输出功率,其中,斯托克斯光的线宽被抑制超过43是布里渊泵浦的40 kHz线宽的两倍。此外,还通过实验研究了输出耦合和泵浦方案对单频BTFL功率和线宽行为的影响,并且在线宽变窄,输出功率和SBS阈值之间存在性能平衡。输出耦合对BTFL性能产生了重大影响。
更新日期:2020-02-03
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