• Chinese Optics Letters
  • Vol. 14, Issue 7, 071401 (2016)
Yongfei Gao1、3, Junxuan Zhang1、2, Huaguo Zang1, Xiaolei Zhu1、*, Yingjie Yu3, and Weibiao Chen1
Author Affiliations
  • 1Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Shanghai University, Shanghai 201800, China
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    DOI: 10.3788/COL201614.071401 Cite this Article Set citation alerts
    Yongfei Gao, Junxuan Zhang, Huaguo Zang, Xiaolei Zhu, Yingjie Yu, Weibiao Chen. Stable single-mode operation of injection-seeded Q-switched Nd:YAG laser by sine voltage modulation[J]. Chinese Optics Letters, 2016, 14(7): 071401 Copy Citation Text show less

    Abstract

    Based on the modified ramp and fire technique, a novel injection seeding approach with real-time resonance tracking is successfully demonstrated in a single-frequency Nd:YAG pulsed laser. Appling a high-frequency sinusoidal modulation voltage to one piezo actuator and an adjustable DC voltage to another piezo actuator for active feedback, single-mode laser output with high-frequency stability is obtained, and the effect of the piezo hysteresis on the frequency stability can be eliminated for a laser diode pumped Q-switched Nd:YAG laser at a repetition rate of 400 Hz.
    I=I1+I2+2I1I2cos(2πδ+4πα((Asin(2πkt)B)/λ)),(1)

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    phase=2πδ+4πα(Asin(2πkt)B)/λ,(2)

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    B=Asin(2πkΔt),(3)

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    Yongfei Gao, Junxuan Zhang, Huaguo Zang, Xiaolei Zhu, Yingjie Yu, Weibiao Chen. Stable single-mode operation of injection-seeded Q-switched Nd:YAG laser by sine voltage modulation[J]. Chinese Optics Letters, 2016, 14(7): 071401
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