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Volume 40 Issue 6
Sep.  2016
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Actively mode-locked Ho: YAG laser at room temperature

  • In order to get hundred picosecond laser at 2m band, by using an acousto-optic modulator and Tm:YLF laser as the pump source, an actively continuous wave mode-locked Ho:YAG solid-state laser was obtained at room temperature. The output characteristics of active mode-locked laser were studied. After experimental verification, the parameters of laser were obtained, such as mode-locked pulse repetition frequency of 82.75MHz, the maximal average output power of 1W, wavelength center of 2097.25nm, slope efficiency of 13.3%, and pulse width of about 86.6ps. The results show that mode-locked Ho-doped laser with 100ps pulse width could be obtained by the method of active mode-locked technology.
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    REN J C, ZHOU R L, LOU S L, et al. Supercontinuum generation in a standard single-mode fiber by a Q-switched Tm, Ho:YVO4 laser[J]. Chinese Optics Letters, 2014, 12(9):24-28.
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    ZHANG X B, YAO B Q, WANG Y Z, et al. Quasi-four-level co-doped Tm/Ho gadolinium vanadate laser[J]. Laser Technology, 2006, 30(2):119-122(in Chinese).
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    WANG J, YAO B Q, CUI Z, et al. High efficiency actively Q-switched Ho:YVO4 laser pumped at room temperature[J].Laser Physics Letters, 2014, 11(8):085003.
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    SCHEPLER K L, SMITH B D, HEINE F, et al. Mode-locking of diode-pumped Tm,Ho:YLF[C]//Advanced Solid State Laser.Washington DC, USA:The Optical Society of America, 1994:257-259.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Actively mode-locked Ho: YAG laser at room temperature

    Corresponding author: WANG Tao, tao.wang@caep-loti.com
  • 1. Laser and Optoelectronics Technologies Institute of Ningbo, China Academy of Engineering Physics, Ningbo 315100, China

Abstract: In order to get hundred picosecond laser at 2m band, by using an acousto-optic modulator and Tm:YLF laser as the pump source, an actively continuous wave mode-locked Ho:YAG solid-state laser was obtained at room temperature. The output characteristics of active mode-locked laser were studied. After experimental verification, the parameters of laser were obtained, such as mode-locked pulse repetition frequency of 82.75MHz, the maximal average output power of 1W, wavelength center of 2097.25nm, slope efficiency of 13.3%, and pulse width of about 86.6ps. The results show that mode-locked Ho-doped laser with 100ps pulse width could be obtained by the method of active mode-locked technology.

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