光子晶体光纤中受激布里渊散射慢光研究  

Stimulated Brillouin Scattering Slow Light in Photonic Crystal Fiber

作　　者：赵军发[1] 杨秀峰[2] 李元[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：《光学学报》2010年第8期2437-2440,共4页Acta Optica Sinica

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：基于受激布里渊散射的慢光在全光通信中具有重要的应用前景。传统的光纤作为慢光介质,具有较低的延迟效率,对光纤长度和抽运功率要求较高,而高非线性光子晶体光纤作为慢光介质应用于慢光系统,可以提高系统的延迟效率。实验选用一段70m长的高非线性光子晶体光纤作为慢光介质,在抽运功率101mW情况下,50ns脉冲信号获得了33dB的布里渊增益,脉冲延迟了30ns,延迟效率达到了0.0046ns/(mW.m),是普通单模光纤的13.7倍。该光纤应用于受激布里渊散射慢光系统可以有效缩短光纤长度和降低对抽运功率的要求,具有潜在的应用前景。There are important applications for stimulated Brillouin scattering slow light in all optical communications network.The conventional optical fibers used as slow light medium have low delay efficiency,so the demands of fiber length and pump power are higher.The delay efficiency can be improved by using highly nonlinear photonic crystal fibers.The Brillouin gain of 33 dB is achieved in a 70 m highly nonlinear photonic crystal fiber under the pump power 101 mW,which results in 30 ns time delay of 50 ns signal pulses.The delay efficiency of this kind fiber is 0.0046 ns/（mW·m）,which is about 13.7 times larger than the single mode fiber.The demands of fiber length and pump power are effectively reduced when this kind of fiber is used,and the fiber has a large potential use in stimulated Brillouin scattering slow light system.

关 键 词：光通信 受激布里渊散射 慢光 高非线性光子晶体光纤 延迟效率 

分 类 号：O437.2[机械工程—光学工程]