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利用耦合模理论 ,数值分析了当光纤光栅 (FBG)折射率变化为均匀分布、直流切趾高斯分布时 ,光纤光栅长度对其峰值反射率的影响。研究结果对光纤光栅外腔半导体激光器的设计和性能优化具有重要的意义
The effect of fiber grating length on the peak reflectivity was analyzed numerically when the refractive index of the FBG was changed to a uniform distribution and the DC apodized Gaussian distribution was numerically analyzed. The research results are of great significance to the design and performance optimization of fiber grating external cavity semiconductor lasers