High-slope-efficiency 2.06 μm Ho: YLF laser in-band pumped by a fiber-coupled broadband diode.
High-slope-efficiency 2.06 μm Ho: YLF laser in-band pumped by a fiber-coupled broadband diode.
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DOI：
10.1364/ol.41.001237
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发表时间：
2016-03
期刊：
影响因子：
3.6
通讯作者：
E. Ji;Qiang Liu;M. Nie;Xuezhe Cao;X. Fu;M. Gong
中科院分区：
文献类型：
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作者：
E. Ji;Qiang Liu;M. Nie;Xuezhe Cao;X. Fu;M. Gong
本文首先研究了宽带光纤耦合二极管谐振泵浦的小型2.06 μ mHo：YLF激光器的激光性能。在连续波（CW）操作，最大输出功率为1.63 W，对应于89.2%的斜率效率，获得了近衍射极限的光束质量。在主动调Q操作中，在100 Hz的重复频率下实现了1.1 mJ的最大脉冲能量。最小脉冲持续时间为43 ns。在CW和Q开关制度的性能表明，目前的光纤耦合二极管带内泵浦Ho：YLF激光器在某些条件下，需要几瓦的输出功率或几毫焦耳的短脉冲能量有很大的潜力。
We first demonstrate the laser performance of a compact 2.06 μm Ho: YLF laser resonantly pumped by a broadband fiber-coupled diode. In continuous-wave (CW) operation, maximum output power of 1.63 W, corresponding to a slope efficiency of 89.2%, was obtained with a near diffraction-limited beam quality. In actively Q-switched operation, maximum pulse energy of 1.1 mJ was achieved at the repetition frequency of 100 Hz. The minimum pulse duration was 43 ns. The performance in both the CW and Q-switched regimes indicates that the current fiber-coupled diode in-band pumped Ho: YLF laser has great potential in certain conditions that require several watts of output power or several millijoules of short pulse energy.