Single-longitudinal-mode acousto-optic <i>Q</i>-switched Nd:YVO<sub>4</sub> laser using Fabry-Perot etalon

LI Yindong; CHEN Yifu; SUN Jianing; MAN Zhaoyang; AN Jiashuo; YAN Bingzheng; BAI Zhenxu; LYU Zhiwei; WANG Yulei

doi:10.5768/JAO202445.0607004

Journal of Applied Optics > 2024 > 45(6): 1307-1313. > DOI: 10.5768/JAO202445.0607004

LI Yindong, CHEN Yifu, SUN Jianing, MAN Zhaoyang, AN Jiashuo, YAN Bingzheng, BAI Zhenxu, LYU Zhiwei, WANG Yulei. Single-longitudinal-mode acousto-optic Q-switched Nd:YVO₄ laser using Fabry-Perot etalon[J]. Journal of Applied Optics, 2024, 45(6): 1307-1313. DOI: 10.5768/JAO202445.0607004

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Single-longitudinal-mode acousto-optic Q-switched Nd:YVO₄ laser using Fabry-Perot etalon

LI Yindong^{1, 2,},
CHEN Yifu^{1, 2},
SUN Jianing^{1, 2},
MAN Zhaoyang^{1, 2},
AN Jiashuo^{1, 2},
YAN Bingzheng^{1, 2},
BAI Zhenxu^{1, 2},
LYU Zhiwei^{1, 2},
WANG Yulei^{1, 2, ,}

1.
Center for Advanced Laser Technology, Hebei University of Technology, Tianjin 300401, China
2.
Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin 300401, China

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Received Date: November 02, 2023
Revised Date: January 10, 2024
Available Online: October 23, 2024

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Abstract

Abstract

Single-longitudinal-mode (SLM) lasers, characterized by their superior output laser beam quality, narrow linewidth, stable frequency, and compact size, find extensive applications in coherent optical communication, lidar, nonlinear optics, gravitational wave detection, and high-precision spectral measurement. A short cavity scheme in conjunction with Fabry-Perot etalon mode selection was employed, and a theoretical analysis of the longitudinal mode within the cavity was carried out. A laser diode single end-pumped acousto-optic Q-switched Nd:YVO₄ laser with a cavity length of 90 mm was involved, into which a 5 mm thick Fabry-Perot etalon with a reflectivity of 90% was inserted. A SLM laser output was realized with an adjustable repetition frequency of 1 Hz~10 Hz, a pulse duration of 10 ns, a single pulse energy of 133 μJ, and an energy instability of 3.39%. The output SLM laser was further amplified by two stages, and a single-pulse energy output of 40 mJ was obtained.
- laser technology,
- single-longitudinal-mode,
- Fabry-Perot etalon,
- short cavity,
- acoustic-optical Q-switched

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References (29)

References

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Single-longitudinal-mode acousto-optic Q-switched Nd:YVO₄ laser using Fabry-Perot etalon