调谐范围40nm的多波长布里渊/铒光纤光源  

Multiwavelength Brillouin/Erbium Fiber Source with 40 nm Tuning Range

作　　者：赵军发[1] 杨秀峰[2] 刘卓琳[1] 童峥嵘[2] 刘艳格[1] 赵启大[1] 

机构地区：[1]南开大学现代光学研究所,天津300071 [2]天津理工大学计算机与通信工程学院,天津300384

出　　处：《中国激光》2010年第10期2482-2486,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(10774077);国家973计划(2010CB327605);天津市自然科学基金(08JCYBJC14400);天津市科技发展计划科技攻关项目(05YFGPGX04900);天津市科技支撑重点项目(07ZCKFGX00200)资助课题

摘　　要：设计了一种宽带可调谐多波长布里渊/铒光纤光源。利用光纤中的受激布里渊散射效应产生反方向传输的斯托克斯信号将光信号返回线型腔中,消除了腔内自激模的影响,使光源的调谐带宽仅由掺铒光纤放大器的带宽和布里渊抽运信号的调谐范围决定。布里渊抽运信号进入布里渊增益介质之前经过掺铒光纤放大器的两次放大,有效降低了布里渊增益的抽运阈值。该光源实现了1530～1570 nm之间40 nm可调谐范围的输出。在布里渊抽运信号功率2 mW,1480 nm抽运源抽运功率110 mW情况下,在1540～1566 nm范围内,获得了波长间隔0.084 nm的5个波长的输出。A widely tunable multiwavelength Brillouin/erbium fiber source is experimentally demonstrated.The Brillouin Stokes signals return back to the linear cavity owing to the effect of stimulated Brillouin scattering.The influence of the self-lasing modes is effectively eliminated because of the weak reflectivity.The tuning range of the fiber source is only limited by the bandwidth of erbium-doped fiber amplifier and the tuning range of Brillouin pump signal.The pump threshold of Brillouin gain is effectively reduced by the double-pass Brillouin pump signal amplification.The fiber source provides a tuning range of 40 nm（1530～1570 nm）.At the Brillouin pump power of 2 mW and the 1480 nm pump power of 110 mW,5 output channels with 0.084 nm channel spacing from 1540 to 1566 nm are achieved.

关 键 词：光纤光学 多波长布里渊/铒光纤光源 受激布里渊散射 调谐范围 

分 类 号：TN253[电子电信—物理电子学]