光学学报, 2010, 30 (8): 2437, 网络出版: 2010-08-13   

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
作者单位
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
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70 m长的高非线性光子晶体光纤作为慢光介质,在抽运功率101 mW情况下,50 ns脉冲信号获得了33 dB的布里渊增益,脉冲延迟了30 ns,延迟效率达到了0.0046 ns/(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。
Abstract
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.
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赵军发, 杨秀峰, 李元, 童峥嵘, 刘艳格, 赵启大. 光子晶体光纤中受激布里渊散射慢光研究[J]. 光学学报, 2010, 30(8): 2437. Zhao Junfa, Yang Xiufeng, Li Yuan, Tong Zhengrong, Liu Yange, Zhao Qida. Stimulated Brillouin Scattering Slow Light in Photonic Crystal Fiber[J]. Acta Optica Sinica, 2010, 30(8): 2437.

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