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Wavelength-flexible all-polarization-maintaining self-sweeping fiber laser based on intracavity loss tuning [Early Posting]

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摘要

We reported a wavelength-flexible all-polarization-maintaining self-sweeping fiber laser based on the intracavity loss tuning brought by the bent optical fiber. The bidirectional cavity structure achieved the self-sweeping effect due to the appearance of the dynamic grating in the active fiber with spatial hole burning effect. Under this, a section of fiber was bent into a circle for adjusting the loss of the cavity. With a descending diameter of bent fiber circle, the sweeping range moves to the shorter wavelength and covers a wide range from 1055.6 to 1034.6 nm eventually. Both the initial wavelength of self-sweeping regime and the threshold of fiber laser show exponential correlation with the diameter of the circular fiber. Our work provides a compact and low-cost way to achieve the broad wavelength-flexible self-sweeping operation.

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作者单位:

    Northwest University - Taibai Campus
    Northwest University
    Northwest University

引用该论文

Wang Kaile,Wen Zengrun,Chen Haowei,lu baole,Bai Jintao. Wavelength-flexible all-polarization-maintaining self-sweeping fiber laser based on intracavity loss tuning[J].Chinese Optics Letters,2021,19(4):04.