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Timing-jitter reduced high-repetition-rate Q-switched Nd:YVO4/Cr4+:YAG micro laser with low pump power

  • Solid State and Liquid Lasers
  • Published:
Laser Physics

Abstract

We report a high repetition rate Q-switched Nd:YVO4/Cr4+:YAG micro laser with small pump power. Unwanted defects in pulse train, which are inherently large in passively Q-switched laser, was simply minimized by controlling temperature of Nd:YVO4/Cr4+:YAG medium. When T 0 = 90% Cr4+:YAG and R OC = 90% output coupler were used, Q-switched Nd:YVO4/Cr4+:YAG micro laser showed the optimum output; maximum output power of 58 mW, optical-to-optical efficiency of 9.1%, repetition rate of 1.1 MHz, and pulse width of 57 ns were achieved with 640 mW pumping. MHz-order repetition rate in Nd:YVO4/Cr4+:YAG Q-switched laser with low pumping (<1 W) is the highest value to the best of our knowledge.

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Authors and Affiliations

  1. Graduate Program of Photonics and Applied Physics, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju, 500-712, Republic of Korea

    I. -S. Kim & D. -K. Ko

  2. Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju, 500-712, Republic of Korea

    C. Jung & D. -K. Ko

Authors
  1. I. -S. Kim
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  2. C. Jung
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  3. D. -K. Ko
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Correspondence to C. Jung.

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Original Text © Astro, Ltd., 2012.

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Kim, I.S., Jung, C. & Ko, D.K. Timing-jitter reduced high-repetition-rate Q-switched Nd:YVO4/Cr4+:YAG micro laser with low pump power. Laser Phys. 22, 703–707 (2012). https://doi.org/10.1134/S1054660X12040044

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