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High-energy resonantly diode-pumped Q-switched Er:YAG laser at 1617 nm

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Abstract

We report high-energy linearly polarized operation of an Er:YAG laser at 1617 nm, resonantly pumped by quasi-continuous-wave 1470-nm laser diodes. A U-shape resonator incorporating two 0.25 at.% Er:YAG rods and an acousto-optic Q-switch was employed. Polarized output with pulse energy of 20.5 mJ and pulse width of 52 ns at a 50 Hz repetition rate was obtained. At the maximum output energy, the output beam quality M 2 was approximately 1.02 and 1.03 in horizontal and vertical directions, respectively. To the best of our knowledge, this polarized pulse energy is the highest ever reported for a directly diode-pumped Q-switched Er:YAG laser operating at 1617 nm.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (NSFC) under Grant Number 61405213.

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Authors and Affiliations

  1. Key Laboratory of Space Laser Communication and Detection Technology, Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Shanghai, 201800, China

    Zhenzhen Yu, Mingjian Wang, Xia Hou & Weibiao Chen

  2. University of Chinese Academy of Sciences, Beijing, 100049, China

    Zhenzhen Yu

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  1. Zhenzhen Yu
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  2. Mingjian Wang
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  3. Xia Hou
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  4. Weibiao Chen
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Correspondence to Mingjian Wang.

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Yu, Z., Wang, M., Hou, X. et al. High-energy resonantly diode-pumped Q-switched Er:YAG laser at 1617 nm. Appl. Phys. B 122, 84 (2016). https://doi.org/10.1007/s00340-016-6357-4

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  • DOI: https://doi.org/10.1007/s00340-016-6357-4

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