2.05 kW all-fiber high-beam-quality fiber amplifier with stimulated Brillouin scattering suppression incorporating a narrow-linewidth fiber-Bragg-grating-stabilized laser diode seed source

被引：23
作者：
Lee, Junsu [1 ]
Lee, Kwang Hyun [1 ]
Jeong, Hwanseong [1 ]
Park, Minkyu [1 ]
Seung, Ji Hoon [1 ]
Lee, Jung Hwan [1 ]
机构：
[1] Agcy Def Dev, Ground Technol Res Inst, Daejeon 34186, South Korea
来源：
APPLIED OPTICS | 2019年 / 58卷 / 23期
关键词：
OSCILLATOR POWER-AMPLIFIER; SINGLE-MODE; CONTINUOUS-WAVE; AVERAGE-POWER; FREQUENCY; KILOWATT; INSTABILITIES; MODULATION; THRESHOLD; SYSTEMS;
D O I：
10.1364/AO.58.006251
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally demonstrate an all-fiber high-power fiber amplifier with high beam quality and a slope efficiency of 81.8%, using a fiber-Bragg-grating-stabilized laser diode as a narrow spectral linewidth (0.08 nm) seed source. During amplification, the spectral linewidth of the laser output is broadened from 0.08 to 0.24 nm due to nonlinear phenomena. To the best of our knowledge, we report the first experimental observation of the suppression of stimulated Brillouin scattering (SBS), with increased output power. In addition, we investigated the SBS suppression by simultaneously measuring the optical backscattered power, backscattered spectrum, and output spectrum at different values of output power. The beam quality, M-2, was measured to be similar to 1.28 at the maximum output power of 2.05 kW, and modal instability was not observed. (C) 2019 Optical Society of America
引用
收藏
页码：6251 / 6256
页数：6
相关论文
共 62 条
[51]   Suppressing mode instabilities by optimizing the fiber coiling methods [J].
Tao, Rumao ;
Su, Rongtao ;
Ma, Pengfei ;
Wang, Xiaolin ;
Zhou, Pu .
LASER PHYSICS LETTERS, 2017, 14 (02)
[52]   1.3 kW monolithic linearly polarized single-mode master oscillator power amplifier and strategies for mitigating mode instabilities [J].
Tao, Rumao ;
Ma, Pengfei ;
Wang, Xiaolin ;
Zhou, Pu ;
Liu, Zejin .
PHOTONICS RESEARCH, 2015, 3 (03) :86-93
[53]   Thermal effects in kilowatt fiber lasers [J].
Wang, Y ;
Xu, CQ ;
Po, H .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2004, 16 (01) :63-65
[54]   Research of the Mode Instability Threshold in High Power Double Cladding Yb-doped Fiber Amplifiers [J].
Wang, Yanshan ;
Liu, Qinyong ;
Ma, Yi ;
Sun, Yinhong ;
Peng, Wanjing ;
Ke, Weiwei ;
Wang, Xiaojun ;
Tang, Chun .
ANNALEN DER PHYSIK, 2017, 529 (08)
[55]   Experimental demonstration of coherent beam combining over a 7 km propagation path [J].
Weyrauch, Thomas ;
Vorontsov, Mikhail A. ;
Carhart, Gary W. ;
Beresnev, Leonid A. ;
Rostov, Andrey P. ;
Polnau, Ernst E. ;
Liu, Jony Jiang .
OPTICS LETTERS, 2011, 36 (22) :4455-4457
[56]   1.6 kW Yb fiber amplifier using chirped seed amplification for stimulated Brillouin scattering suppression [J].
White, Jeffrey O. ;
Harfouche, Mark ;
Edgecumbe, John ;
Satyan, Naresh ;
Rakuljic, George ;
Jayaraman, Vijay ;
Burgner, Christopher ;
Yariv, Amnon .
APPLIED OPTICS, 2017, 56 (03) :B116-B122
[57]   2 kW incoherent beam combining of four narrow-linewidth photonic crystal fiber amplifiers [J].
Wirth, C. ;
Schmidt, O. ;
Tsybin, I. ;
Schreiber, T. ;
Peschel, T. ;
Brueckner, F. ;
Clausnitzer, T. ;
Limpert, J. ;
Eberhardt, R. ;
Tuennermann, A. ;
Gowin, M. ;
ten Have, E. ;
Ludewigt, K. ;
Jung, M. .
OPTICS EXPRESS, 2009, 17 (03) :1178-1183
[58]   2 kW narrow spectral width monolithic continuous wave in a near-diffraction-limited fiber laser [J].
Xu, Yang ;
Fang, Qiang ;
Qin, Yuguo ;
Meng, Xiangjie ;
Shi, Wei .
APPLIED OPTICS, 2015, 54 (32) :9419-9421
[59]   3.1 kW monolithic MOPA configuration fibre laser bidirectionally pumped by non-wavelength-stabilized laser diodes [J].
Yan, Ping ;
Huang, Yusheng ;
Sun, Junyi ;
Li, Dan ;
Wang, Xuejiao ;
Gong, Mali ;
Xiao, Qirong .
LASER PHYSICS LETTERS, 2017, 14 (08)
[60]   Diode-pumped narrow linewidth multi-kilowatt metalized Yb fiber amplifier [J].
Yu, Charles X. ;
Shatrovoy, Oleg ;
Fan, T. Y. ;
Taunay, Thierry F. .
OPTICS LETTERS, 2016, 41 (22) :5202-5205
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