3.46 μm Q-switched Er3+:ZBLAN fiber laser based on a semiconductor saturable absorber mirror

3.46 μm Q-switched Er3+:ZBLAN fiber laser based on a semiconductor saturable absorber mirror
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3.46 μm Q 开关 Er3 :基于半导体可饱和吸收镜的 ZBLAN 光纤激光器

DOI:
10.1016/j.optlastec.2021.107131
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发表时间:
2021-09
影响因子:
5
通讯作者:
Dianyuan Fan
Dianyuan Fan
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhiqiang Fang;Chunxiang Zhang;Jun Liu;Yu Chen;Dianyuan Fan

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采用InAs基半导体可饱和吸收镜(SESAM)实现了3.46 μm波长的Er ~(3+):ZBLAN光纤激光器的被动调Q。为了提高激光器的时间稳定性,引入了一种放大自发辐射(ASE)种子1973 nm泵浦源。获得了稳定的3.46 μm调Q脉冲序列,最大重复频率为58.71kHz,脉宽为2.47 μs。最大平均输出功率和单脉冲能量分别为63 mW和1.4 μJ。还评估了相对于两个泵浦功率的脉冲特性。实验结果表明,现有的商用SESAM具有将工作波长扩展到3.0 μm以上的中红外波段的能力。
By adopting a InAs based semiconductor saturable absorber mirror (SESAM), we have demonstrated a 3.46 μm passively Q-switched Er3+:ZBLAN fiber laser. An amplified spontaneous emission (ASE) seeded 1973 nm pump source is introduced to enhance the temporal stability. Stable 3.46 μm Q-switched pulse trains are obtained with a maximum repetition rate of 58.71 kHz and corresponding pulse width of 2.47 μs. The maximum average output power and single pulse energy are 63 mW and 1.4 μJ, respectively. The pulse characteristics with respect to the two pump powers are also evaluated. The results prove that the commercial SESAMs in stock have the capacity to extend the operation wavelength to the mid-infrared (mid-IR) wavelength region beyond 3.0 μm.
基于半导体可饱和吸收镜的高功率被动调Q掺Er3 ZBLAN光纤激光器2.8μm
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