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Applied Physics B

, 124:195 | Cite as

RTP voltage-increased electro-optic Q-switched Ho:YAG laser with double anti-misalignment corner cubes

  • Y. P. Wang
  • Y. L. Ju
  • J. Wu
  • T. Y. Dai
  • B. Q. Yao
Article
  • 42 Downloads

Abstract

We describe a pulsed Ho:YAG laser with double anti-misalignment corner cubes that uses an RbTiOPO4 crystal as the electro-optic Q-switch. Two polarizers coated with high reflectivity coatings for the s-polarized light at the laser wavelength were employed to achieve linearly polarized laser output. The maximum s-polarized output power of 2.95 W at 2091.3 nm was obtained under the absorbed pump power of 12.9 W by increasing the voltage applied on RbTiOPO4 electro-optic crystal to 1000 V. The corresponding optical-to-optical conversion efficiency was 22.9% and the slope efficiency was 67.9%. For the Q-switched operation, the pulse energy of Ho:YAG laser was 7.8 mJ with a pulse width of 57 ns at the repetition rate of 100 Hz, resulting in a peak power of 136.8 kW. The beam quality factor M2 of Ho:YAG laser was 1.33.

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (no. 61405047).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Y. P. Wang
    • 1
  • Y. L. Ju
    • 1
  • J. Wu
    • 1
  • T. Y. Dai
    • 1
  • B. Q. Yao
    • 1
  1. 1.National Key Laboratory of Tunable Laser TechnologyHarbin Institute of TechnologyHarbinChina

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