取样光纤Bragg光栅特性及其通信应用的研究  

Research on properties of sampled fiber Bragg grating and its application in communication

作　　者：吕振[1] 董璞[1] 

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105

出　　处：《传感器与微系统》2011年第4期19-21,共3页Transducer and Microsystem Technologies

基　　金：辽宁省高校创新团队项目计划资助项目(2007T074)

摘　　要：用传输矩阵法对取样均匀光纤Bragg光栅进行了理论分析,并依据此方法对取样光栅的反射谱进行了数值仿真。研究表明:随着光栅长度的增加和采样率、折射率调制深度的减少,反射峰的均匀性得到了改善,旁瓣的反射率变小,带宽明显变窄,而反射峰间隔保持不变。反射峰的间隔由光栅周期决定,与采样率无关。基于取样光栅的独特反射谱特性,对其作为光子器件的结构图作了探讨。The sampled uniform fiber Bragg gratings are theoretically analyzed and numerically simulated with the transfer matrix method.The study shows that with the increase of grating length and the decrease of sampling rate and refractive index modulation depth,the uniformity of reflective peak is improved.The reflectance of the side lobes is decreased slightly and the band width is obviously narrowed but the interval between two reflective peaks is maintained constant.The interval between reflective peaks is determined by grating period and is independent of sampling rate.On the basis of the special reflective spectrum characteristics for the sampled gratings,the structure diagram of the optical devices are studied.

关 键 词：取样光纤Bragg光栅 传输矩阵法 耦合模理论 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]