本文主要研究内容
作者苗帅杰,张文涛,宋颖（2019）在《Random Bragg-gratings-based narrow linewidth random fiber laser with a π-phase-shifted FBG》一文中研究指出：A new structure of short-cavity random fiber laser(RFL) with narrow linewidth lasing is proposed. Aπ-phase-shifted fiber Bragg grating(FBG) loop mirror was used in the RFL for spectral filtering and to suppress multi-mode oscillation due to the narrow transmission window. The random feedback of the RFL was implemented by a randomly dispersed weak reflection FBG array. The high gain of the erbium-doped fiber and a half-open cavity design results in a low lasing threshold. The linewidth of the laser was 225 Hz with58 d B side-mode-suppression ratio. The laser threshold was 4.5 mW, and the optical signal-to-noise ratio was up to 63 dB.
Abstract
A new structure of short-cavity random fiber laser(RFL) with narrow linewidth lasing is proposed. Aπ-phase-shifted fiber Bragg grating(FBG) loop mirror was used in the RFL for spectral filtering and to suppress multi-mode oscillation due to the narrow transmission window. The random feedback of the RFL was implemented by a randomly dispersed weak reflection FBG array. The high gain of the erbium-doped fiber and a half-open cavity design results in a low lasing threshold. The linewidth of the laser was 225 Hz with58 d B side-mode-suppression ratio. The laser threshold was 4.5 mW, and the optical signal-to-noise ratio was up to 63 dB.
论文参考文献
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论文详细介绍
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苗帅杰：Random Bragg-gratings-based narrow linewidth random fiber laser with a π-phase-shifted FBG论文
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