论文部分内容阅读
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 multi-pole method is used to simulate the dispersion characteristics of photonic crystal fiber. The single-mode fiber with three zero-dispersion wavelengths is obtained by the accurate design of the structure parameters, and the ultra-flat dispersion curve with very low dispersion value is obtained. The special phase matching characteristics of three zero-dispersion wavelength photonic crystal fibers are studied. Under different optical fiber structure parameters, the phase-matching wavelength changes with the pumping wavelength and pumping power, and the corresponding phases of different dispersion curves Match the wavelength characteristics. Three zero-dispersion wavelength fibers enable efficient wavelength conversion of optical solitons between two anomalous dispersion regions, resulting in six new four-wave mixing phase-matched wavelengths producing more pairs of photons that are efficient, multi-wavelength, four-wave mixing The study of frequency generation and supercontinuum provides a new physical environment.