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中文摘要：
快速有效地获得多级联光纤光栅法布里-珀罗（F-P）腔的光谱特性,是优化设计基于上述结构建立的级联多波长激光器、放大器等各种光器件以及复杂分布式传感网络的重要基础和保障.将V-I传输矩阵法用于光纤光栅F-P腔反射光谱特性的分析,并建立了V-I传输矩阵模型.采用该模型对三种不同结构的光纤光栅F-P腔在不同参数下的光谱特性进行分析,并与传统多层膜法的分析结果相比较,表明V-I传输矩阵法能够在保证分析精度的前提下大大节省运算时间.实验结果表明,V-I传输矩阵法对光纤光栅F-P腔谱特性的分析结果比耦合模法更准确.
英文摘要：
Fast and efficient access to spectral characteristics of multi-cascaded fiber grating Fabry-Perot（F-P） cavity,is an important foundation and premise to ensure optimizing the design of cascade multi-wavelength lasers,amplifiers and other optical devices,and complex distributed sensing network based on the F-P structure.V-I transmission matrix method is presented first in this paper to analyze the reflection spectral characteristics of fiber grating F-P cavity and then the V-I transmission matrix model is established.Spectral characteristics of three different structures of fiber grating F-P cavity at different parameters are analyzed based on the V-I transmission matrix model.Compared with multi-layer method,V-I transmission matrix method can save the computation time apparently under the premise of ensuring analysis accuracy.The experimental results show that for analyzing the spectral characteristics of fiber grating F-P cavity,the V-I transmission matrix method is more accurate than the coupled-mode method.
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