Multiwavelength fiber lasers operating in the 1.3 μm wavelength region are of great interest as they complement existing systems in the conventional optical communication band of 1.55 μm. In this work, a multiwavelength Brillouin fiber laser with single- and double-Brillouin frequency spacings operating in 1.3 μm is proposed and demonstrated using a dispersion compensating fiber (DCF) as the Brillouin gain medium. A bismuth-doped fiber serves as the laser gain medium. At the maximum pump power of 1021 mW and with the Brillouin pump set at 11 dBm, up to 7 Brillouin Stokes lines with a wavelength spacing of 0.074 nm are obtained in the single-spaced configuration. In the case of the double-spaced configuration, 14 Stokes lines are generated with a wavelength spacing of 0.15 nm between the even Stokes lines. By tuning the central wavelength of the Brillouin pump, both laser configurations are wavelength-tunable with a range of 93 nm and 19 nm for the single-spaced and double-spaced Brillouin lasers respectively. This is, to the best of the author's knowledge, the first demonstration of a multiwavelength/Brillouin laser using a bismuth-doped fiber as the laser gain medium.

中文翻译：

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具有单频和双频间隔的掺铋光纤激光器中的多波长布里渊生成

在 1.3 μm 波长范围内工作的多波长光纤激光器非常受关注，因为它们补充了 1.55 μm 传统光通信波段中的现有系统。在这项工作中，提出并使用色散补偿光纤 (DCF) 作为布里渊增益介质，提出并演示了工作在 1.3 μm 的单和双布里渊频率间隔的多波长布里渊光纤激光器。掺铋光纤用作激光增益介质。在 1021 mW 的最大泵浦功率和设置为 11 dBm 的布里渊泵浦时，在单间隔配置中可获得多达 7 条波长间隔为 0.074 nm 的布里渊斯托克斯线。在双间隔配置的情况下，生成 14 条斯托克斯线，偶数斯托克斯线之间的波长间隔为 0.15 nm。通过调整布里渊泵浦的中心波长，两种激光器配置都可以在 93 nm 和 19 nm 的范围内对单间隔和双间隔布里渊激光器进行波长调谐。据作者所知，这是使用掺铋光纤作为激光增益介质的多波长/布里渊激光器的首次演示。