• Infrared and Laser Engineering
  • Vol. 46, Issue 2, 205002 (2017)
Zhang Jian1, Yu Yongji1, Jiang Chengyao2, Wang Zijian1, Wang Bin1, Chen Xinyu1, and Jin Guangyong1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3788/irla201746.0205002 Cite this Article
    Zhang Jian, Yu Yongji, Jiang Chengyao, Wang Zijian, Wang Bin, Chen Xinyu, Jin Guangyong. Experiment comparison of acousto-optical Q-switching and RTP electro-optical Q-switching of high repetition frequency Nd:YVO4 laser[J]. Infrared and Laser Engineering, 2017, 46(2): 205002 Copy Citation Text show less

    Abstract

    A laser diode(LD) end-pumped adhesive-free bond composite Nd:YVO4 Acousto Optical(AO) Q-switched and RTP Electro Optical(EO) Q-switched laser were reported at the same experimental condition. TEM00 operation of 1 064 nm laser were obtained at repetition rate of 500 kHz in AO Q-switched regime and 200 kHz in EO Q-switched regime. And it was the first time to compare the output performance of AO Q-switched operation and RTP EO Q-switched operation at high repetition rate. In EO Q-switched regime, the average output power reached to 12.13 W with the pulse-width of 16.65 ns. In AO Q-switched regime, the average output power reached to 13.56 W with the pulse-width of 27.27 ns. The experimental results show that RTP EO Q-switched operation has better performance of turn-off. However, due to limitation of high voltage driver, EO Q-switched is not able to achieve with shorter pulse width and higher peak power laser under higher repetition rate operation. The AO Q-switched operation that has better output characteristic at higher repetition rate, and it would be the preferred method to obtain Q-switched laser which the repetition rate is high as thousands of hundreds and even mega.
    Zhang Jian, Yu Yongji, Jiang Chengyao, Wang Zijian, Wang Bin, Chen Xinyu, Jin Guangyong. Experiment comparison of acousto-optical Q-switching and RTP electro-optical Q-switching of high repetition frequency Nd:YVO4 laser[J]. Infrared and Laser Engineering, 2017, 46(2): 205002
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