双抽运光子晶体光纤光学参量放大器特性研究  

Numerical analysis of the two-pump fiber optical parametric amplifier based on the triangular photonic crystal fiber

作　　者：尚韬[1] 李峰[1] 文爱军[1] 刘增基[1] 陈建平[2] 

机构地区：[1]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071 [2]上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海200030

出　　处：《西安电子科技大学学报》2008年第3期383-387,共5页Journal of Xidian University

摘　　要：利用光子晶体光纤高非线性和低色散斜率的优良特性,提出了一种利用变换和缩放的四阶切比雪夫多项式计算双抽运光纤参量放大器平坦增益和带宽的方法.利用上述多项式的微小波动性,推导了放大器的增益和带宽表达式,进行了模拟分析,并与色散移位光纤参量放大器进行了比较.仿真结果表明,光子晶体光纤参量放大器具有优良的放大特性,其增益平坦度小于±0.5 dB,增益带宽可达80 nm.在此基础上,设计了一种新颖的可减小受激拉曼散射影响的双抽运光子晶体光纤参量放大器.Due to the PCF high nonlinearity and low dispersion slope, in order to obtain high flattened gain over a wide bandwidth of two-pump fiber-optic parametric amplifiers （2P-FOPA） based on the triangular photonic crystal fiber （PCF）, the shifted and scaled fourth-order Chebyshev polynomial is presented. Using the above polynomial gain ripple characteristic, expressions for the gain and bandwidth are derived, and numerical simulations are performed. A comparison of its performance with that of FOPAs based on the dispersion-shifted fiber （DSF） is also made. It is shown that less than ±0.5 dB gain flatness can be obtained over the 80 nm bandwidth by the 2P-FOPAs based on the triangular photonic crystal fiber. Finally, a PCF-based fiber optic parametric amplifier to reduce the influence of stimulated Raman scattering （SRS） is designed.

关 键 词：光纤光学参量放大器 光子晶体光纤 双抽运 色散特性 非线性 受激拉曼散射 增益带宽 

分 类 号：TN913.7[电子电信—通信与信息系统]