A 102 W High-Power Linearly-Polarized All-Fiber Single-Frequency Laser at 1560 nm
Jiamin Huang,
Qilai Zhao,
Junjie Zheng,
Chengzi Huang,
Quan Gu,
Wanpeng Jiang,
Kaijun Zhou,
Changsheng Yang,
Zhouming Feng,
Qinyuan Zhang,
Zhongmin Yang,
Shanhui Xu
Affiliations
Jiamin Huang
School of Materials of Science and Engineering, South China University of Technology, Guangzhou 510640, China
Qilai Zhao
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
Junjie Zheng
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
Chengzi Huang
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
Quan Gu
School of Materials of Science and Engineering, South China University of Technology, Guangzhou 510640, China
Wanpeng Jiang
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
Kaijun Zhou
State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China
Changsheng Yang
State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China
Zhouming Feng
State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China
Qinyuan Zhang
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
Zhongmin Yang
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
Shanhui Xu
School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
A 1560 nm high-power linearly-polarized all-fiber single-frequency narrow-linewidth laser with near diffraction-limited beam quality is demonstrated. The Yb–Er energy transfer efficiency and the ability of the signal laser to capture pump light have been improved by specifically choosing the pumping wavelength and the input signal power in the final power amplifier stage of this laser system. Under the off-peak absorption pumping wavelength of 940 nm, along with the maximum input signal power of 6 W, a maximum output power of 102 W with a slope efficiency of 40.5% is acquired. At the highest output power status, a polarization extinction ratio (PER) of 15.5 dB, a linewidth of 3.05 kHz, and a beam quality of Mx2 = 1.14, My2 = 1.06 are obtained, respectively. This advanced single-frequency fiber laser has great potential for the long-range coherent Doppler lidar and the next generation of gravitational wave detection.
