抛物平方变迹线性啁啾光纤光栅色散补偿性能分析  

Analysis of a Linearly Chirped Grating with the Apodization of Parabola Squared Function on Its Property of Dispersion Compensation

作　　者：史培明[1] 杨性愉[1] 宋继恩[2] 宋晓琴[1] 

机构地区：[1]内蒙古大学理工学院物理系,呼和浩特010021 [2]北京邮电大学,北京100876

出　　处：《光电子．激光》2004年第9期1065-1068,共4页Journal of Optoelectronics·Laser

基　　金：内蒙古自然科学基金资助项目(200208020108)

摘　　要：提出了一种抛物平方变迹函数。通过数值模拟,发现它所描述的线性啁啾光纤光栅(FBG)具有良好的色散补偿性能。在取相同参数的情况下,分别用高斯、抛物平方变迹下的线性啁啾FBG去补偿100km标准单模光纤产生的色散。后者在显著提高输出脉冲的峰值强度的同时,很好地消除了其尾部出现的旁瓣。补偿结果表明:抛物平方型函数比高斯型函数的变迹效果更理想。A new apodized function-parabola squared function is proposed, and it is found a linearly chirped fiber Bragg grating (FBG) with this function has the perfect property of dispersion compensation through the numerical calculation of its optical characteristics. We use linearly chirped FBGs with Gaussian function and the parabola squared function to compensate the dispersion of standard single optical fiber over 100 km respectively. The peak intensity of output pulse is improved obviously, and the side petal of output pulse in the tail is eliminated very well. The compensation result shows that the apodized effect of parabola squared function is found much better when compared with Gaussian function.

关 键 词：变迹 线性啁啾光纤光栅 色散补偿 FBG 旁瓣 迹函数 标准单模光纤 平方 型函数 迹线 

分 类 号：TN253[电子电信—物理电子学] TN256