掺Yb3+双包层单频光纤放大器中SBS的理论分析

详细信息

Stimulated Brillouin scattering in Yb3+-doped double clad single-frequency fiber amplifier

College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

摘要: 为了研究掺Yb3+双包层单频光纤放大器中受激布里渊散射产生的规律,从含有受激布里渊散射的速率方程出发,采用模拟计算的方法进行了理论分析。结果表明,光纤长度、抽运方式、抽运功率和换热系数对受激布里渊散射有很大的影响,信号功率的影响较小。所得结论为从实验上研究单频光纤放大器中受激布里渊散射的变化规律提供了理论依据。
- 非线性光学 /
- 光纤放大器 /
- 单频 /
- 受激布里渊散射 /
- 换热系数
Abstract: In order to study stimulated Brillouin scattering（SBS） in Yb3+-doped double clad single-frequency fiber amplifiers, numerical simulation was carried out based on the rate equations. The results show that fiber length, pump schemes, pump power, heat transfer coefficient make great impact on SBS effect. On the other hand the impact of the signal power is small. The results of simulation provide a theoretical guide to optimum design of high power single-frequency fiber amplifiers.
- nonlinear optics /
- fiber amplifier /
- single-frequency /
- stimulated Brillouin scattering /
- heat transfer coefficient

[1]	LIU A P.Novel SBS suppression scheme for high power fiber amplifier[J].Proceedings of SPIE,2006,6102:61021R/1-61021R/9.
[2]	YAN F P,SHAN Y ,JIAN S S.Study on threshold power of the fiber source for the stimulated Brillouin scattering fiber optic gyros[J].Chinese Journal of Lasers,2000,A27(9):790-794(in Chinese).
[3]	GE C W,ZHANG W J,GAO X M.Illust rated description of narrow-band and broad-band stimulated Brillouin scattering process[J].Chinese Journal of Lasers,2003,30(8):701-704(in Chinese).
[4]	WANG C C,ZHANG F,LU Y C,et al.Study of stimulated Brillouin scattering effect in high-power single-frequency fiber amplifiers[J].Chinese Journal of Lasers,2006,33(12):1630-1635(in Chinese).
[5]	HILDEBRANT M,BÜSCHE S,WEΒELS P,et al.Brillouin scattering spectra in high-power single-frequency ytterbium doped fiber amplifiers[J].Optics Express,2008,16(20):15970-15979.
[6]	LIU A P.Suppressing stimulated Brillouin scattering in fiber amplifiers using nonuniform fiber and temperature gradient[J].Opics Express,2007,15(3):977-984.
[7]	CHEN J X,SUI Zh,CHEN F Sh,et al.Thermal effect of Yb3+-doped double clad fiber laser[J].Laser Technology,2006,30(3):268 -270(in Chinese).
[8]	WANG Y,XU C,PO H.Thermal effects in kilowatt fiber lasers[J].IEEE Photonics Technology Letters,2004,16(1):63-65.
[9]	NATHAN A.Stimulated Brillouin scattering in a dual-clad fiber amplifier[J].Journal of the Optical Society of America,2002,B19(11):2551-2557.