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高功率单频光纤放大器中温度分布对受激布里渊散射的影响

Influence of Temperature Distribution on Stimulated Brillouin Scattering in High Power Single-Frequency Fiber Amplifiers

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摘要

从含有受激布里渊散射(SBS)的速率方程组出发,研究单频光纤放大器中,光纤内的温度分布对SBS的影响。计算表明,增大光纤内的温度梯度,可使得SBS的增益谱变宽,增益系数降低,进而抑制SBS;冷却信号光输出端附近的光纤,以增大光纤内的温度梯度,能有效抑制SBS;采用冷却光纤的方法来抑制SBS时,冷却光纤的位置和长度均存在最佳值,最佳值与抽运功率、温度梯度以及放大器中光纤总长度有关;采取最佳的冷却措施,能将抽运功率的阈值和放大器的输出功率提高2倍以上。

Abstract

The influences of temperature distribution on stimulated Brillouin scattering (SBS) in high power single-frequency fiber amplifier are studied, based on the rate equations combining with SBS. The results indicate that temperature gradients along a fiber can broaden the SBS gain profile and thereby suppress SBS. The threshold of pump power and the output power of amplifier can be increased significantly by cooling fibers around the output port of amplifier actively. The length and location of fibers cooled to suppress SBS have the optima, which are influenced by pump power, temperature distribution and length of total fiber in amplifier. The threshold of pump power and output power of amplifier can be increased more than 2 times under the optimum condition.

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中图分类号:TN248.1

DOI:10.3788/cjl20103710.2491

所属栏目:实验技术与元件

收稿日期:2009-12-24

修改稿日期:2010-03-26

网络出版日期:0001-01-01

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冷进勇:国防科技大学光电科学与工程学院定向能技术研究所, 湖南 长沙 410073
刘驰:中国科学院上海光学精密机械研究所, 上海 201800
郭少锋:国防科技大学光电科学与工程学院定向能技术研究所, 湖南 长沙 410073
漆云凤:中国科学院上海光学精密机械研究所, 上海 201800
许晓军:国防科技大学光电科学与工程学院定向能技术研究所, 湖南 长沙 410073
赵伊君:国防科技大学光电科学与工程学院定向能技术研究所, 湖南 长沙 410073

联系人作者:冷进勇(jinyongleng@gmail.com)

备注:冷进勇(1982—),男,博士研究生,主要从事光纤激光器和放大器等方面的研究。

【1】Y. Jeong, J. Nilsson, J. K. Sahu et al.. Power scaling of single-frequency ytterbium-doped fiber master-oscillator power-amplifier sources up to 500 W[J]. IEEE J. Sel. Top. Quantum. Electron., 2007, 13(3): 546~551

【2】A. Liu. Novel SBS suppression scheme for high power fiber amplifier[C].SPIE., 2006, 6102: 61021R

【3】S. Gray, D. T. Walton, X. Chen et al.. Optical fibers with tailored acoustic speed profiles for suppressing stimulated Brillouin scattering in high-power, single-frequency sources[C]. IEEE J. Sel. Topi. Quantum Electron., 2009, 15(1): 37~46

【4】S. Gray, A. Liu, D. T. Walton et al.. 502 watt, single transverse mode, narrow linewidth, bidirectionally pumped Yb-doped fiber amplifier[J]. Opt. Express, 2007, 15(25): 17044~17050

【5】M. Hildebrandt, S. Büsche, P. Weβels et al.. Brillouin scattering spectra in high-power single-frequency ytterbium doped fiber amplifiers[J]. Opt. Express, 2008, 16(20): 15970~15979

【6】J. E. Rothenberg, P. A.Thielen, M. Wickham et al.. Suppression of stimulated Brillouin scattering in single-frequency multi-kilowatt fiber amplifiers[C]. SPIE, 2008, 6873:68730O

【7】Wang Chuncan, Zhang Fan, Lu Yuchun et al.. Study of stimulated Brillouin scattering effect in high-power single-frequency fiber amplifiers[J]. Chinese J. Lasers, 2006, 33(12): 1630~1635
王春灿, 张帆, 陆玉春 等. 单频大功率光纤放大器中抑制受激布里渊散射的理论分析[J]. 中国激光, 2006, 33(12): 1630~1635

【8】A. Liu. Stimulated Brillouin scattering in single-frequency fiber amplifiers with delivery fibers [J]. Opt. Express, 2009, 17(17): 15201~15209

【9】N. A. Brilliant. Stimulated Brillouin scattering in a dual-clad fiber amplifier[J]. J. Opt. Soc. Am. B., 2002, 19(11): 2551~2557

【10】Chen Jixin, Sui Zhan, Chen Fushen et al.. Thermal effect of Yb3+-doped double clad fiber laser[J]. Laser Technology, 2006, 30(3): 268~270
陈吉欣, 隋展, 陈福深 等. 掺Yb3+双包层光纤激光器的热效应分析[J]. 激光技术, 2006, 30(3): 268~270

【11】Y. Wang, C. Xu, H. Po. Thermal effects in kilowatt fiber lasers[J]. IEEE Photon. Technol. Lett., 2004, 16(1): 63~65

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