Towards a 20W-level industrial-grade Er:ZBLAN fiber laser at 2.8μm
Towards a 20W-level industrial-grade Er:ZBLAN fiber laser at 2.8μm
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DOI：
10.1364/assl.2017.jtu2a.38
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发表时间：
2017-10
期刊：
影响因子：
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通讯作者：
C. Schäfer;S. Hattori;M. Murakami;S. Shimizu;S. Tokita
中科院分区：
文献类型：
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作者：
C. Schäfer;S. Hattori;M. Murakami;S. Shimizu;S. Tokita
报道了一种简单可靠的光学装置，在掺铒氟化物光纤中获得了20 W的2.8 μ m左右的激光输出。与过去的实验相比，效率显著提高，允许输出功率加倍。在测试的自由运行配置中，当在975 nm处将泵浦功率从1瓦增加到约80 W时，波长从2790 nm移动到最大值2855 nm。一项长期实验表明，在大约20 W的输出功率下振荡近60小时，平均功率下降率约为每小时0.1%。
20 W of laser operation at around 2.8 m in an Er-doped fluoride fiber is reported using a simple and proven optical setup. Compared to experiments in the past, the efficiency was significantly increased that allowed doubling the output power. In the tested free run configuration, the wavelength shifts from 2790 nm to a maximum of 2855 nm when increasing the pump power from 1 watt to about 80 W at 975 nm. A long-term experiment showed oscillation at around 20 W output power for nearly 60 hours with an average rate of power decrease of the order of 0.1% per hour.