4.7 Article

Compact Q-switched 2 μm Tm:GdVO4 laser with MoS2 absorber

Journal

PHOTONICS RESEARCH
Volume 3, Issue 5, Pages 256-259

Publisher

CHINESE LASER PRESS
DOI: 10.1364/PRJ.3.000256

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Funding

  1. National Natural Science Foundation of China [61475089, 61205174, 11474187]
  2. development projects of Shandong Province Science and Technology
  3. Excellent Young Scholars Research Fund of Shandong Normal University

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A molybdenum disulfide (MoS2) saturable absorber was fabricated by thermally decomposing the ammonium thiomolybdate. By using the MoS2 absorber, a compact diode-pumped passively Q-switched Tm:GdVO4 laser has been demonstrated. A stable Q-switched laser with repetition rates from 25.58 to 48.09 kHz was achieved. Maximum average output power was 100 mW with the shortest pulse duration of 0.8 mu s. Maximum pulse energy is 2.08 mu J at center of 1902 nm. (C) 2015 Chinese Laser Press

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