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Photonics
Volume 10
Issue 6
10.3390/photonics10060619
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Communication

High–Power 792 nm Fiber–Coupled Semiconductor Laser

by
Peng Liu
1,
Wanggen Sun
2,
Xiao Sun
1,
Zhen Zhu
2,
Huabing Qin
2,
Jian Su
2,
Chengcheng Liu
2,
Wenjing Tang
1,
Kai Jiang
1,*,
Wei Xia
1,2,* and
Xiangang Xu
2,3
1
School of Physics and Technology, University of Jinan, Jinan 250022, China
2
Shandong Huaguang Optoelectronics Co., Ltd., Jinan 250101, China
3
Institute of Novel Semiconductors, Shandong University, Jinan 250100, China
*
Authors to whom correspondence should be addressed.
Photonics 2023, 10(6), 619; https://doi.org/10.3390/photonics10060619
Submission received: 18 March 2023 / Revised: 22 May 2023 / Accepted: 24 May 2023 / Published: 26 May 2023
(This article belongs to the Special Issue Advancements in Semiconductor Lasers)
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Abstract

The pumping of Tm-doped crystal or fiber by a 792 nm semiconductor laser is an important way to generate a mid-infrared laser, which is widely used in various fields. In this paper, a high–power 792 nm fiber–coupled semiconductor laser module was successfully fabricated with the output power of 232 W at a 10 A continuous current and the electro-optic conversion efficiency of 48.6%. The laser module is coupled with 24 chips into a fiber by spatial multiplexing and polarization combination technology. For a single emitting laser chip, the continuous wave (CW) output power and threshold current are 10.45 W at 10 A and 1.55 A, respectively. A polarization as high as 94% can also be realized, which is more suitable for laser spatial beam combining. The laser module was aged for more than 4000 h at 12 A and 25 °C without obvious power degradation.
Keywords: 792 nm semiconductor laser; fiber–coupled; spatial multiplexing; polarization combination 792 nm semiconductor laser; fiber–coupled; spatial multiplexing; polarization combination

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MDPI and ACS Style

Liu, P.; Sun, W.; Sun, X.; Zhu, Z.; Qin, H.; Su, J.; Liu, C.; Tang, W.; Jiang, K.; Xia, W.; et al. High–Power 792 nm Fiber–Coupled Semiconductor Laser. Photonics 2023, 10, 619. https://doi.org/10.3390/photonics10060619

AMA Style

Liu P, Sun W, Sun X, Zhu Z, Qin H, Su J, Liu C, Tang W, Jiang K, Xia W, et al. High–Power 792 nm Fiber–Coupled Semiconductor Laser. Photonics. 2023; 10(6):619. https://doi.org/10.3390/photonics10060619

Chicago/Turabian Style

Liu, Peng, Wanggen Sun, Xiao Sun, Zhen Zhu, Huabing Qin, Jian Su, Chengcheng Liu, Wenjing Tang, Kai Jiang, Wei Xia, and et al. 2023. "High–Power 792 nm Fiber–Coupled Semiconductor Laser" Photonics 10, no. 6: 619. https://doi.org/10.3390/photonics10060619

APA Style

Liu, P., Sun, W., Sun, X., Zhu, Z., Qin, H., Su, J., Liu, C., Tang, W., Jiang, K., Xia, W., & Xu, X. (2023). High–Power 792 nm Fiber–Coupled Semiconductor Laser. Photonics, 10(6), 619. https://doi.org/10.3390/photonics10060619

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