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首页> 外文期刊>Optics & Laser Technology >Switchable multi-wavelength and tunable wavelength spacing erbium-doped fiber laser based on a phase-shifted fiber Bragg grating combined with a Mach-Zehnder interferometer
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Switchable multi-wavelength and tunable wavelength spacing erbium-doped fiber laser based on a phase-shifted fiber Bragg grating combined with a Mach-Zehnder interferometer

机译：基于相移光纤布拉格光栅的可切换多波长和可调谐波长间距erbium掺杂光纤激光器与Mach-Zehnder干涉仪相结合

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摘要

A switchable multi-wavelength fiber laser with tunable wavelength spacing is proposed. It is based on a structure filter composed of a phase-shifted fiber Bragg grating (PSFBG) and a Mach-Zehnder interferometer (MZI), and the MZI is fabricated by splicing a section of polarization-maintaining fiber with two segments of multi-mode fibers. By adjusting the variable optical attenuator in the cavity and slightly changing the temperature, stable single-, dual-, triple- and quadruple-wavelength emissions can be obtained. The minimum wavelength spacing of adjacent peaks is 0.176 nm, and the maximum is 17.86 nm. The laser line emissions can be switched from 1527.684 nm to 1550.224 nm with optical signal to noise ratio of more than 50 dB. The maximum wavelength fluctuation of the fiber laser is less than 0.025 nm over 50 min. When the strain applied to the filter is changed, the tunable wavelength spacing can be achieved. The wavelength spacing of dual-wavelength laser can be continuously tuned from 21.82 nm to 22.69 nm by applying strain of 0-258 mu epsilon to the filter.
机译：提出了一种可切换的多波长光纤激光，具有可调谐波长间距。它基于由相移光纤布拉格光栅（PSFBG）和Mach-Zehnder干涉仪（MZI）组成的结构滤波器，并且通过用两个多模式的两个段剪切偏振保持光纤部分来制造MZI纤维。通过调节空腔中的可变光衰减器，可以获得稍微改变温度，可以获得稳定的单，双，三倍和四倍波长排放。相邻峰的最小波长间距为0.176nm，最大值为17.86nm。激光线排放可以从1527.684nm到1550.224nm切换到光信号到噪声比大于50 dB。光纤激光器的最大波长波动在50分钟内小于0.025nm。当施加到过滤器的菌株改变时，可以实现可调波长间距。双波长激光的波长间距可以通过向过滤器施加0-258μmε的菌株来连续调谐21.82nm至22.69nm。

著录项

  • 来源
    《Optics & Laser Technology》 |2019年第2019期|共8页
  • 作者

    Zhao Xiaoli; Dong Mingli; Zhang Yumin; Luo Fei; Zhu Lianqing;

  • 作者单位

    Beijing Informat Sci &

    Technol Univ Beijing Lab Opt Fiber Sensing &

    Syst Beijing 100016 Peoples R China;

    Beijing Informat Sci &

    Technol Univ Overseas Expertise Intro Ctr Discipline Innovat Ctr 111 Beijing 100192 Peoples R China;

    Beijing Informat Sci &

    Technol Univ Beijing Lab Opt Fiber Sensing &

    Syst Beijing 100016 Peoples R China;

    Beijing Informat Sci &

    Technol Univ Beijing Lab Opt Fiber Sensing &

    Syst Beijing 100016 Peoples R China;

    Beijing Informat Sci &

    Technol Univ Beijing Lab Opt Fiber Sensing &

    Syst Beijing 100016 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 光学;
  • 关键词

    Switchable multi-wavelength; Phase-shifted fiber Bragg grating; Tunable; Fiber laser;

    机译：可切换多波长;相移光纤布拉格光栅;可调;光纤激光器;

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