Infrared and Laser Engineering, Volume. 45, Issue 3, 305001(2016)

Nd:YVO4 self-mode-locked picosecond laser

Yuan Ruixia1,2、*, Peng Jiying1,2, Li Zuohan1,2, Zheng Yi1,2, and Wu Yijie1,2
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  • 1[in Chinese]
  • 2[in Chinese]
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    The Nd:YVO4 self-mode-locked picosecond laser was designed and studied, and also the best conditions of the mode-locked lasers were explored. The period-doubling self-mode-locked pulses and the quasi-periodic self-mode-locked pulses in the picosecond laser were observed and analyzed, and the output characteristics of the self-mode-locked laser with straight cavity in compact structure was studied and measured. The resonant cavity was concave flat chamber, under the condition of no other clamping device, the Nd:YVO4 crystal as a laser gain medium and Kerr medium, and the high efficiency continuous mode-locked 1 064 nm laser pulses were outputted. The Nd:YVO4 laser crystal is 16 mm from the input mirror, and the cavity length is 90 mm. The four kinds transmittance in 1 064 nm of output mirror are 10%, 20%, 30% and 50%, respectively, meanwhile the output characteristics of the laser were analyzed in comparison with different output mirrors. By optimizing the design, when the transmittance in 1 064 nm of output mirror is 10%, the output power of the laser is 2.76 W at 8 W incident pump power, and the slope efficiency is up to 43.2%, the repetition rate of mode-locked laser is 1.43 GHz, the laser achieves a high powered and stable continuous wavelength mode-locked.

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    Yuan Ruixia, Peng Jiying, Li Zuohan, Zheng Yi, Wu Yijie. Nd:YVO4 self-mode-locked picosecond laser[J]. Infrared and Laser Engineering, 2016, 45(3): 305001

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    Paper Information

    Category: 激光器技术

    Received: Jul. 11, 2015

    Accepted: Aug. 15, 2015

    Published Online: Apr. 5, 2016

    The Author Email: Ruixia Yuan (13121621@bjtu.edu.cn)

    DOI:10.3788/irla201645.0305001

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