Infrared and Laser Engineering, Volume. 50, Issue 12, 20200227(2021)

Efficient wavelength-locked 878.6 nm diode-modulated-pumped Nd: YVO4 self-Raman laser

Bing Sun1...2, Xin Ding1,2, Pengbo Jiang3, Yuntao Bai1,2, Xuanyi Yu4, Jingbo Wang1,2, Lei Zhao1,2, Yang Liu1,2, Tengteng Li1,2, Liang Wu1,2, Guizhong Zhang1,2, and Jianquan Yao12 |Show fewer author(s)
Author Affiliations
  • 1Institute of Laser and Opto-electronics, School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 30072, China
  • 2Key Laboratory of Opto-electronics Information Science and Technology, Ministry of Education, Tianjin 300072, China
  • 3Laser Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan 250014, China
  • 4College of Physics Science, Nankai University, Tianjin 300071, China
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    An in-band pumped and diode-modulated-pumped Nd:YVO4 self-Raman laser was demonstrated. Aiming at the problem of low output power and optical conversion efficiency caused by thermal effect in all-solid self-Raman laser, the in-band pump and diode-modulated pump schemes were both adopted to mitigate the thermal effects and increased the upper limit of the pump power, so as to improved the output power and optical conversion efficiency of the Nd:YVO4 self-Raman laser greatly. With a diode-pump modulation frequency of 10 kHz and duty cycle of 40%, the maximum average power of 8.75 W Stokes wave output at 1176 nm was obtained under a diode pump power of 30 W at a pulse repetition frequency (PRF) of 100 kHz. The corresponding optical conversion efficiency was 28.6%. Compared with the experimental results under the continuous pumping mechanism with the same pump power, the average output power of Stokes wave was improved by 42%, with the optical conversion efficiency improved by 8.5%. The experimental results show that the combination of in-band pump and diode-modulated pump schemes can effectively mitigate the thermal effect and increase the upper limit of pump power, so as to improve the output power and optical conversion efficiency of the self-Raman laser.

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    Bing Sun, Xin Ding, Pengbo Jiang, Yuntao Bai, Xuanyi Yu, Jingbo Wang, Lei Zhao, Yang Liu, Tengteng Li, Liang Wu, Guizhong Zhang, Jianquan Yao. Efficient wavelength-locked 878.6 nm diode-modulated-pumped Nd: YVO4 self-Raman laser[J]. Infrared and Laser Engineering, 2021, 50(12): 20200227

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    Paper Information

    Category: Lasers & Laser optics

    Received: Jun. 10, 2021

    Accepted: --

    Published Online: Feb. 9, 2022

    The Author Email:

    DOI:10.3788/IRLA20200227

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