三个零色散波长光子晶体光纤及相位匹配特性  

Phase-Matching Characteristic of Photonic Crystal Fiber with Three Zero-Dispersion Wavelengths

作　　者：赵兴涛[1] 刘晓旭[1,2] 王书涛[1] 刘兆伦[1] 王伟[1] 李曙光[1] 侯蓝田[1] 

机构地区：[1]燕山大学河北省测试计量技术及仪器重点实验室,亚稳材料科学与技术国家重点实验室,河北秦皇岛066004 [2]河北科技师范学院物理系,河北秦皇岛066004

出　　处：《光学学报》2015年第9期101-107,共7页Acta Optica Sinica

基　　金：国家自然科学基金(61405172);国家973计划(2010CB327604);河北省自然科学基金(F2014203224)

摘　　要：利用多极法对光子晶体光纤的色散特性进行了模拟,通过结构参数的精确设计,得到了具有三个零色散波长的单模光纤,获得了色散值极低的超平坦色散曲线。对三个零色散波长光子晶体光纤特殊的相位匹配特性进行了研究,在不同光纤结构参数下,得到了相位匹配波长随抽运波长及抽运功率的变化规律,分析了不同色散曲线对应的相位匹配波长特点。三个零色散波长光纤能实现两个反常色散区之间光孤子的高效波长变换,可以获得6个新的四波混频相位匹配波长,产生更多光子对,为高效、多波长四波混频的产生及超连续谱的研究提供了新的物理环境。The dispersion characteristics of photonic crystal fibers are calculated by multipole method. Single mode fibers with three zero-dispersion wavelengths are obtained by the accuracy design of the fiber structure parameters. Closing to zero and flattened dispersion can be obtained in the fibers with three zero-dispersion wavelengths. The special phase-matching characteristics of the fibers with three zero-dispersion wavelengths are analyzed. The variation of phase-matching wavelength with the pump wavelength and the pump power is obtained for the different fiber structure parameters. The characteristics of phase-matching wavelength for different dispersion curves are analyzed. The presence of three zero-dispersion wavelengths can realize the high efficiency wavelength conversion of optical soliton between two anomalous dispersion regions, get six new four-wave mixing phase-matching wavelengths and produce more photon pairs. These provide a new physical condition for efficient multiple wavelength four-wave mixing and supercontinuum spectrum research.

关 键 词：光纤光学 光子晶体光纤 色散 相位匹配 四波混频 

分 类 号：TN253[电子电信—物理电子学]