Photonics Research, Volume. 6, Issue 6, 614(2018)

Active/passive Q-switching operation of 2  μm Tm,Ho:YAP laser with an acousto-optical Q-switch/MoS2 saturable absorber mirror

Linjun Li1,3、*, Xining Yang1,4, Long Zhou1,4, Wenqiang Xie1, Yunlong Wang1, Yingjie Shen2,8, Yuqiang Yang5, Wenlong Yang5, Wei Wang4, Zhiwei Lv3,9, Xiaoming Duan6, and Minghua Chen7
Author Affiliations
  • 1Heilongjiang Provincial Key Laboratory of Optoelectronics and Laser Technology, Heilongjiang Institute of Technology, Harbin 150050, China
  • 2School of Opto-Electronic Information Science and Technology, Yantai University, Yantai 264005, China
  • 3School of Electronic and Information Engineering, Hebei University of Technology, Tianjin 300401, China
  • 4The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province, Harbin University of Science and Technology, Harbin 150080, China
  • 5College of Sciences, Harbin University of Science and Technology, Harbin 150080, China
  • 6National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China
  • 7Key Laboratory of Engineering Dielectric and Applications, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
  • 8e-mail: Yingjieyj@163.com
  • 9e-mail: ZhiweiLV@hebut.edu.cn
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    Figures & Tables(11)
    Schematic of the experimental setup.
    Output power of the Tm,Ho:YAP laser; the inset is CW output power without Q-switch under different OCs.
    Pulse width of the Tm,Ho:YAP laser; the inset is typical profile of pulse width in active Q-switch mode.
    Pulse train in 200 ns and 400 ns time scales.
    (a) MoS2 Raman spectrum; (b) absorption spectrum of MoS2 material from 1000 nm to 2400 nm.
    Nonlinear transmittance curve of the MoS2 sample versus the pump peak intensities; inset shows the experimental setup for saturable absorption measurement.
    Output average powers and pulse energies of the Tm,Ho:YAP laser in PQS mode operation.
    Pulse width versus pump power and PRF in passive Q-switching operation.
    Pulse train in 4.0 μs and 100 μs time scales.
    Output wavelengths of the Tm,Ho:YAP laser in CW and PQS mode operation.
    Beam quality factors of the Tm,Ho:YAP laser.
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    Linjun Li, Xining Yang, Long Zhou, Wenqiang Xie, Yunlong Wang, Yingjie Shen, Yuqiang Yang, Wenlong Yang, Wei Wang, Zhiwei Lv, Xiaoming Duan, Minghua Chen. Active/passive Q-switching operation of 2  μm Tm,Ho:YAP laser with an acousto-optical Q-switch/MoS2 saturable absorber mirror[J]. Photonics Research, 2018, 6(6): 614

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Feb. 26, 2018

    Accepted: Apr. 6, 2018

    Published Online: Jul. 2, 2018

    The Author Email: Linjun Li (LLJ7897@126.com)

    DOI:10.1364/PRJ.6.000614

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