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STUDY OF SPATIAL HOLE BURNING IN DISTRIBUTED PHASE-SHIFTED DISTRIBUTED FEEDBACK SEMICONDUCTOR LASERS
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A new algorithm based on transfer matrix method is given to analyse a new distributed feedback (DFB) structure—the distributed phase- shifted (DPS) DFB laser. In the small signal analysis, a new model is proposed with this algorithm. Considering different structures of DFB laser diode, we define a spatial-hole-burning (SHB) factor to measure the SHB effect. Compared with the λ/4 phase-shifted DFB and 3 phase-shifted DFB, the DPS-DFB structure shows a superior characteristics both in static and dynamic behavior. 相似文献
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本文分析了四分之一波长相移激光器的稳态特性,在我们的分析,我们考虑了空间烧孔(SHB)及非线性增益的因素,在通用的传输矩阵法(TMM)的基础上,我们对TMM模型的输入进行向量处理(而不是用牛顿-拉斐森法(NR)来求阈值及高于阈值情况下的主模及次模,进而求出单模稳定性,这个方法可用于其它DFB结构的模分析。 相似文献
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