Simulation investigation on supercontinuum generation and noise characteristics in the normal dispersion photonic crystal fiber with a flattened dispersion profile  

作　　者：李恒瑞 桑新柱 苑金辉 王葵如 余重秀 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing University of Posts and Telecommunications

出　　处：《Optoelectronics Letters》2010年第3期172-175,共4页光电子快报（英文版）

基　　金：supported by the Major State Basic Research Development Program of China (No. 2010CB328304);the National Natural Science Foundation of China (Nos. 60807022 and 60677003);the Key Project of Chinese Ministry of Education (No.109015)

摘　　要：The propagation of picosecond pulses in the normal dispersion photonic crystal fiber(PCF) with a flattened dispersion profile is numerically investigated.The characteristics of the amplitude and phase noise in the supercontinuum generation(SCG) are also analyzed through the coherent sliced supercontinuum(SC).The effects of self-phase modulation(SPM) and four-wave mixing(FWM) on broadening of the pulse spectrum are presented,and the best amplitude and phase noise performance with a specific fiber length is obtained.The SCG in the wavelength range of 1475 to 1625 nm has only fluctuation between ±1.5 dB,and both the amplitude and phase noise caused by the intensity noise of the input power is below 2.5% in the range of 1500 to 1600 nm.The propagation of picosecond pulses in the normal dispersion photonic crystal fiber（PCF） with a flattened dispersion profile is numerically investigated.The characteristics of the amplitude and phase noise in the supercontinuum generation（SCG） are also analyzed through the coherent sliced supercontinuum（SC）.The effects of self-phase modulation（SPM） and four-wave mixing（FWM） on broadening of the pulse spectrum are presented,and the best amplitude and phase noise performance with a specific fiber length is obtained.The SCG in the wavelength range of 1475 to 1625 nm has only fluctuation between ±1.5 dB,and both the amplitude and phase noise caused by the intensity noise of the input power is below 2.5% in the range of 1500 to 1600 nm.

关 键 词：光子晶体光纤 超连续谱 正常色散 色散平坦 噪声特性 模拟 相位噪声 皮秒脉冲 

分 类 号：TN253[电子电信—物理电子学] TN929.11