中国激光, 2010, 37 (6): 1496, 网络出版: 2010-07-07   

基于超连续谱白光干涉仪的宽波段光子晶体光纤色散测量

Broadband Dispersion Measurement of Photonic Crystal Fiber Based on Supercontinuum White Light Interferometer
作者单位
国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
摘要
针对当前各种色散测量方法的不足,结合光子晶体光纤(PCF)易于产生超连续谱和白光干涉仪测量精度高的特点,设计并搭建了一套基于超连续谱马赫曾德尔白光干涉仪的色散测量系统,实现了光子晶体光纤的高精度和宽波段色散测量。利用该系统对一种纤芯直径约为5 μm,空气孔直径为3.54 μm,孔间距为5.52 μm的全内反射型光子晶体光纤的色散特性进行了测量,实验结果与数值计算的结果基本一致,零色散点相差小于50 nm,较好地验证了测量方法和实验系统的有效性。
Abstract
A system based on Mach-Zehnder interferometer and supercontinuum white light, which is used for ultra-broadband and high precision dispersion measurement of photonic crystal fiber, is designed and constructed by considering the shortcomings of all the available methods. A photonic crystal fiber (PCF) with core diameter of 5 μm, hole diameter of 3.54 μm and pitch of 5.52 μm, is measured respectively. The measured dispersion coefficients are well in agreement with the simulation results, and the difference between the zero dispersion wavelengths is smaller than 50 nm, which show good perfermance of the method and the experimental system.
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王泽锋, 刘小明, 侯静. 基于超连续谱白光干涉仪的宽波段光子晶体光纤色散测量[J]. 中国激光, 2010, 37(6): 1496. Wang Zefeng, Liu Xiaoming, Hou Jing. Broadband Dispersion Measurement of Photonic Crystal Fiber Based on Supercontinuum White Light Interferometer[J]. Chinese Journal of Lasers, 2010, 37(6): 1496.

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