Intermode beating mode-locking technique for a rare-earth-doped fiber pulsed laser

Luo Zhengqian; Yang Runhua; Du Tuanjie; Ruan Qiujun; Li Weiwei; Chen Nan

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Intermode beating mode-locking technique for a rare-earth-doped fiber pulsed laser

机译：稀土掺杂纤维脉冲激光器的相互式跳动模式锁定技术

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In this paper, we report the intermode beating mode-locking of a 2 mu mTm(3+) -doped fiber laser (TDFL) pumped by a 1565 nm continuous-wave multi-longitudinal-mode laser. Because strong intermode beating of the 1565 nm pump source induces the periodic modulation of 2 mu m intracavity power, stable mode-locking of the TDFL is successfully established by precisely matching the 2 mu m cavity frequency with the intermode-beating frequency of the 1565 nm pump source. The mode-locked laser, without requiring any specific mode-locking element, can stably emit the rectangular nanosecond pulses. The mode-locking operation at the center wavelength of 1980.35 nm has a >61 dB signal-to-noise ratio and a 34.496 MHz repetition rate. Although the preliminary results are not better than those of conventional mode-locking, intermode beating mode-locking in combination with rare-earth-doped fiber lasers could provide a promising and alternative solution for compact, low-cost, and high-performance pulsed laser sources. (C) 2017 Optical Society of America

机译：在本文中，我们报告了由1565nm连续波多纵向模式激光器泵浦的2μmtm（3+）的光纤激光器（Tdfl）的相互式跳动模式锁定。由于1565 NM泵浦源的强相跳动引起了2μm的周期性调制，因此通过将2μm腔频率与1565nm的相显示频率精确地匹配2μm腔频率，成功建立了TDFL的稳定模式锁定泵浦源。模式锁定的激光器，而不需要任何特定的模式锁定元件，可以稳定地发射矩形纳秒脉冲。 1980.35 nm的中心波长的模式锁定操作具有> 61dB信噪比和34.496 MHz的重复率。尽管初步结果并不优于传统模式锁定的结果，但与稀土掺杂光纤激光器组合的相互式跳动模式锁定可以提供紧凑，低成本和高性能脉冲激光的有希望和替代的解决方案来源。（c）2017年光学学会

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来源
《Applied optics》 |2017年第22期|共5页
作者
Luo Zhengqian; Yang Runhua; Du Tuanjie; Ruan Qiujun; Li Weiwei; Chen Nan;
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Xiamen Univ Dept Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Elect Engn Xiamen 361005 Peoples R China;

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Intermode beating mode-locking technique for a rare-earth-doped fiber pulsed laser

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