光子学报, 2012, 41 (7): 824, 网络出版: 2012-08-31   

长周期光纤光栅透射谱计算方法的比较与分析

Comparing and Analysis of Calculation Methods of Longperiod Fiber Gratings Transmission Spectra
杨颖 1,2,3,*顾铮先一 4
作者单位
1 上海理工大学 a.光电信息与计算机工程学院
2 b.理学院光电功能薄膜传感器实验室, 上海 200093
3 临沂大学 汽车学院, 山东 临沂 276005
4 上海理工大学 b.理学院光电功能薄膜传感器实验室, 上海 200093
摘要
长周期光纤光栅透射谱的求解方法有多种, 本文以耦合模理论为基础, 对常用的积分法、公式法、传输矩阵法求解长周期光纤光栅的透射谱进行比较与分析, 指出这三种求解方法各自的特点和适用条件.积分法可在较宽波长范围内直接得到多个模式透射谱的精确解, 但求解过程繁琐, 运算量大;公式法虽然在表述和计算上较为方便, 但只能在较小波长范围内直接求解单个模式的透射谱;传输矩阵法求解过程简便、准确度高、计算量相对较小, 特别适合计算一些非均匀光纤光栅的透射谱.该研究为选择一种精确度高且理论和计算都较简单的计算长周期光纤光栅透射谱的方法提供理论依据.
Abstract
Many methods are considered for calculating longperiod fiber gratings (LPFGs) transmission spectra such as integral method, formula method and transfer matrix method. In this paper, these methods are analyzed based on the coupledmode theory and their characteristics and the conditions of application are pointed out. Exact solution for multimode transmission spectra can be obtained directly by integral method in a wide wavelength range, however, the computation process of integral method is complicated. The formula method is convenient for calculating and expressing, but it can only solve single mode transmission spectra directly in a narrow wavelength range. The transfer matrix method is suitable for calculating some transmission spectra of nonuniform fiber gratings, it is simple to implement, almost always sufficiently accurate, and general the fastest. Through the analysis and compare of the three methods, a best method with high precision and simple calculation is provided for longperiod fiber gratings transmission spectra in theory, which is important for the research and application of LPFGs.

杨颖, 顾铮先一. 长周期光纤光栅透射谱计算方法的比较与分析[J]. 光子学报, 2012, 41(7): 824. YANG Ying, GU Zhengtian. Comparing and Analysis of Calculation Methods of Longperiod Fiber Gratings Transmission Spectra[J]. ACTA PHOTONICA SINICA, 2012, 41(7): 824.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!