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Chinese Optics Letters, Volume. 16, Issue 2, 020015(2018)

Silver nanorods absorber for passively Q-switched Nd,Gd:CaF2 laser

Yongjing Wu1, Siyuan Pang3,4, Yuqian Zu1, Qianqian Peng1, Jimin Yang1, Jie Liu1,2、*, and Liangbi Su3,4
Author Affiliations
  • 1Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • 2Institute of Data Science and Technology, Shandong Normal University, Jinan 250014, China
  • 3Synthetic Single Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China
  • 4Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China
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    (a) TEM image of the SNRs SA with a scale bar of 500 nm; (b) the absorption intensity coefficient of the SNRs SA; (c) a photograph of SNRs solution; (d) the nonlinear transmission curve of the SNRs SA.

    Fig. 1. (a) TEM image of the SNRs SA with a scale bar of 500 nm; (b) the absorption intensity coefficient of the SNRs SA; (c) a photograph of SNRs solution; (d) the nonlinear transmission curve of the SNRs SA.

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    Schematics of diode-pumped Nd,Gd:CaF2 lasers in the CW mode and the PQS mode.

    Fig. 2. Schematics of diode-pumped Nd,Gd:CaF2 lasers in the CW mode and the PQS mode.

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    (Color online) Average output power versus the absorbed pump power for CW.

    Fig. 3. (Color online) Average output power versus the absorbed pump power for CW.

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    (Color online) Average output power, pulse width, repetition rate, and single pulse energy of the Q-switched Nd, Gd:CaF2 laser versus the absorbed pump power.

    Fig. 4. (Color online) Average output power, pulse width, repetition rate, and single pulse energy of the Q-switched Nd, Gd:CaF2 laser versus the absorbed pump power.

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    Laser emission spectrum of the Q-switched pulse trains with T=3%; (a) the instability of the average output power measured during the 40 min with T=3%; (b) the beam quality of the Q-switched laser with T=3%; (c) the spatial beam profile of the Q-switched laser with T=3%.

    Fig. 5. Laser emission spectrum of the Q-switched pulse trains with T=3%; (a) the instability of the average output power measured during the 40 min with T=3%; (b) the beam quality of the Q-switched laser with T=3%; (c) the spatial beam profile of the Q-switched laser with T=3%.

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    Typical pulse trains of the Q-switched laser in different time scales

    Fig. 6. Typical pulse trains of the Q-switched laser in different time scales

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    • Table 1. Results of the Q-switched Nd, Gd:CaF2 Laser Obtained with T= 2% and 3%

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      Table 1. Results of the Q-switched Nd, Gd:CaF2 Laser Obtained with T= 2% and 3%

      Transmission of the OCT= 2%T=3%
      Maximum average output power118 mW116 mW
      slope efficiency12.5%12.6%
      Repetition rate51.48 kHz53.92 kHz
      Shortest pulse width1.239 μs1.046 μs
      Single pulse energy2.29 μJ2.15 μJ
      Peak power1.85 W2.06 W
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    Yongjing Wu, Siyuan Pang, Yuqian Zu, Qianqian Peng, Jimin Yang, Jie Liu, Liangbi Su, "Silver nanorods absorber for passively Q-switched Nd,Gd:CaF2 laser," Chin. Opt. Lett. 16, 020015 (2018)

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    Paper Information

    Special Issue: PHOTONICS BASED ON 2D NONCARBON MATERIALS

    Received: Jul. 17, 2017

    Accepted: Sep. 4, 2017

    Published Online: Jul. 16, 2018

    The Author Email: Jie Liu (jieliu@sdnu.edu.cn)

    DOI:10.3788/COL201816.020015

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology