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Watt-level dysprosium fiber laser at 3.15 mu m with 73% slope efficiency

机译:瓦特水平镝纤维激光器为3.15亩,坡度效率为73%

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摘要

Rare-earth-doped fiber lasers are emerging as promising high-power mid-infrared sources for the 2.6-3.0 mu m and 3.3-3.8 mu m regions based on erbium and holmium ions. The intermediate wavelength range, however, remains vastly underserved, despite prospects for important manufacturing and defense applications. Here, we demonstrate the potential of dysprosium-doped fiber to solve this problem, with a simple in-band pumped grating-stabilized linear cavity generating up to 1.06 W at 3.15 mu m. A slope efficiency of 73% with respect to launched power (77% relative to absorbed power) is achieved-the highest value for any mid-infrared fiber laser to date, to the best of our knowledge. Opportunities for further power and efficiency scaling are also discussed. (c) 2018 Optical Society of America
机译:稀土掺杂纤维激光器是基于Erbium和Holmium离子的2.6-3.0 mu m和3.3-3.8 mu m个区域的高功率中红外来源。 然而,尽管重要的制造和防御应用前景前景,但中间波长范围仍然大幅度差距。 在这里,我们证明了掺杂掺杂纤维来解决这个问题的潜力,简单的带内泵送光栅稳定的线性腔,产生高达1.06W的3.15μm。 迄今为止,迄今为止,迄今为止,迄今为止,迄今为止,实现了相对于发射功率(相对于吸收功率为77%)的坡度效率(相对于吸收功率为77%)。 还讨论了进一步电力和效率缩放的机会。 (c)2018年光学学会

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