Xu Jiangming, Leng Jinyong, Xiao Hu, et al. Tandem pumped powerful superfluorescent fiber source[J]. High Power Laser and Particle Beams, 2017, 29: 110101. doi: 10.11884/HPLPB201729.170217
Citation:
Xu Jiangming, Leng Jinyong, Xiao Hu, et al. Tandem pumped powerful superfluorescent fiber source[J]. High Power Laser and Particle Beams, 2017, 29: 110101. doi: 10.11884/HPLPB201729.170217
Xu Jiangming, Leng Jinyong, Xiao Hu, et al. Tandem pumped powerful superfluorescent fiber source[J]. High Power Laser and Particle Beams, 2017, 29: 110101. doi: 10.11884/HPLPB201729.170217
Citation:
Xu Jiangming, Leng Jinyong, Xiao Hu, et al. Tandem pumped powerful superfluorescent fiber source[J]. High Power Laser and Particle Beams, 2017, 29: 110101. doi: 10.11884/HPLPB201729.170217
Hunan Provincial Collaborative Innovation Center of High Power Fiber Laser,College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha 410073,China
This paper presents the high-power master-oscillator-main-amplifier(MOPA) structured superfluorescent fiber source(SFS) based on tandem pumping technology for high output power. Firstly, broadband seed source is generated from the home-made superfluorescent source with a full-width at half-maximum (FWHM) linewidth of 10.3 nm. Then, narrowband seed source with a FWHM linewidth of 1.8 nm is obtained by employing spectral filter. The narrowband seed light is enhanced to 104.4 W with the aid of two pre-amplifiers. As to the main amplification stage, the ultimate output power is 3.14 kW with an optical-to-optical conversion efficiency of 80.74%. The corresponding FWHM linewidth and M2 values of the amplified light are 4.68 nm and 1.59, respectively. Furthermore, the output power is only limited by the pump power, and further power scaling of this SFS system is available.
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