Free-space Brillouin lasers (BLs) generate high-power narrow-linewidth laser outputs at specific wavelengths. However, despite these impressive results, further compressing the Stokes linewidth while maintaining a high-power output remains a challenge. This study was conducted to investigate the design of BLs, starting from the phase-matching conditions and stability of a Brillouin cavity, for media with different phonon frequencies. A high-power and narrow-linewidth output can be realized using large-size, wide-gain-bandwidth Brillouin media. We experimentally demonstrated a BL using fused silica and diamond with the same cavity parameters. Stokes powers of 21.6 and 18.9 W were obtained with fused silica and diamond, respectively, at an available pump power of 58 W. Using fused silica, a Stokes linewidth of 1.2 kHz was obtained, which is two times narrower than that obtained using the diamond BL. Such BL design routes for various Brillouin media provide a path for achieving high-power, ultra-narrow-linewidth laser radiation at specific wavelengths.
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31 July 2023
Research Article|
August 02 2023
A narrow-linewidth high-power fused silica Brillouin laser
Duo Jin
;
Duo Jin
(Conceptualization, Data curation, Formal analysis, Investigation)
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
3
MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University
, Sydney, New South Wales 2109, Australia
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Zhenxu Bai
;
Zhenxu Bai
a)
(Project administration, Supervision)
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
3
MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University
, Sydney, New South Wales 2109, Australia
a)Authors to whom correspondence should be addressed: baizhenxu@hotmail.com; wyl@hebut.edu.cn; and zhiweilv@hebut.edu.cn
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Yifu Chen;
Yifu Chen
(Data curation)
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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Wenqiang Fan;
Wenqiang Fan
(Data curation)
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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Jun Ke
;
Jun Ke
(Software)
4
School of Optics and Photonics, Beijing Institute of Technology
, Beijing 100081, China
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Yulei Wang;
Yulei Wang
a)
(Conceptualization, Data curation)
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
a)Authors to whom correspondence should be addressed: baizhenxu@hotmail.com; wyl@hebut.edu.cn; and zhiweilv@hebut.edu.cn
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Zhiwei Lü;
Zhiwei Lü
a)
(Funding acquisition, Supervision)
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
a)Authors to whom correspondence should be addressed: baizhenxu@hotmail.com; wyl@hebut.edu.cn; and zhiweilv@hebut.edu.cn
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Richard P. Mildren
Richard P. Mildren
(Conceptualization)
3
MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University
, Sydney, New South Wales 2109, Australia
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a)Authors to whom correspondence should be addressed: baizhenxu@hotmail.com; wyl@hebut.edu.cn; and zhiweilv@hebut.edu.cn
Appl. Phys. Lett. 123, 051109 (2023)
Article history
Received:
May 20 2023
Accepted:
July 24 2023
Citation
Duo Jin, Zhenxu Bai, Yifu Chen, Wenqiang Fan, Jun Ke, Yulei Wang, Zhiwei Lü, Richard P. Mildren; A narrow-linewidth high-power fused silica Brillouin laser. Appl. Phys. Lett. 31 July 2023; 123 (5): 051109. https://doi.org/10.1063/5.0159079
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