Tailoring the spectrum and spatial mode of Yb-doped random fiber laser

Tailoring the spectrum and spatial mode of Yb-doped random fiber laser

In this paper, we make a comprehensive study on tailoring the spectrum and transverse mode of random fiber lasers (RFLs). By simply temperature tuning, the mode gain profile of RFL can be flexibly and precisely manipulated. The spectrum of laser output can be easily tailored in single-wavelength, du...

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Veröffentlicht in:Optics express 2022-02, Vol.30 (5), p.8345-8355
Hauptverfasser: Lv, Jialiang, Li, Hongxun, Zhang, Yimin, Deng, Linxiao, Ma, Xuexiao, Gu, Chun, Yao, Peijun, Xu, Lixin, Zhan, Qiwen
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container_end_page 8355
container_issue 5
container_start_page 8345
container_title Optics express
container_volume 30
creator Lv, Jialiang
Li, Hongxun
Zhang, Yimin
Deng, Linxiao
Ma, Xuexiao
Gu, Chun
Yao, Peijun
Xu, Lixin
Zhan, Qiwen
description In this paper, we make a comprehensive study on tailoring the spectrum and transverse mode of random fiber lasers (RFLs). By simply temperature tuning, the mode gain profile of RFL can be flexibly and precisely manipulated. The spectrum of laser output can be easily tailored in single-wavelength, dual-wavelength, and three-wavelength, respectively. Meanwhile, the operating transverse mode is also optional among LP mode, LP mode, and hybrid mode. The slope efficiency of 17.9% and 27.3% are obtained for LP mode and LP mode operation, respectively. Besides, the coherence control can be confirmed by making speckle contrast measurements. This high-efficiency RFL with the customizable spectrum and spatial mode would have unique applications in wavelength or mode division multiplexing systems, speckle-free imaging, secure communication, and information encryption.
doi_str_mv 10.1364/OE.453859
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title Tailoring the spectrum and spatial mode of Yb-doped random fiber laser
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