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长周期光纤光栅在非均匀温变场中的光谱特性研究

The Non-uniform Temperature Field Influence on Spectrum of LPFG
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摘要 在非均匀温变场的作用下,长周期光纤光栅有效折射率和周期等物理量均会发生非均匀变化.所以,长周期光纤光栅的耦合系数并不是常数,用耦合模理论分析长周期光纤光栅的光谱特性就非常复杂.传输矩阵法是解决长周期光纤光栅中非均匀问题的有效方法.本文在MAT-LAB平台基础上,用传输矩阵法对长周期光纤光栅在非均匀温度场中的光谱特性进行了数值模拟,并对模拟结果进行了分析. Under the non- uniform temperature field, the effective refractive index of a long - period fiber grating will change inhomogeneous. Therefore, the coupling coefficient is not constant. It will be very complex to analyze the spectral characteristics of the long- period fiber grating the coupled mode theory. The transfer matrix method is an effective method to solve the non - uniform problem of long period fiber grating. In this paper, on the basis of MATLAB, the authors simulated the spectral characteristics of the long - period fiber grating in non - .uniform. temperature using transfers matrix method and analyzed the simulation results.
机构地区 燕山大学理学院
出处 《佳木斯大学学报(自然科学版)》 CAS 2008年第6期746-748,共3页 Journal of Jiamusi University:Natural Science Edition
关键词 长周期光纤光栅 传输矩阵 温度 自耦合率 long- period fiber grating transfer matrix temperature self- coupled rate
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参考文献7

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