LAPAREX-An Automatic Parameter Extraction Program for Gain- and Index-Coupled Distributed Feedback Semiconductor Lasers, and Its Application to Observation of Changing Coupling Coefficients with Currents
LAPAREX-An Automatic Parameter Extraction Program for Gain- and Index-Coupled Distributed Feedback Semiconductor Lasers, and Its Application to Observation of Changing Coupling Coefficients with Currents
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发表时间：
2000-03
影响因子：
0.5
通讯作者：
T. Nakura;Y. Nakano
中科院分区：
文献类型：
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作者：
T. Nakura;Y. Nakano
开发了一种可靠的DFB激光器参数自动提取技术。参数提取程序“LAPAREX”能够仅从测量的亚阈值光谱中确定许多器件参数，包括增益和折射率耦合系数，以及光栅前后面的空间相位。利用它首次观察到增益耦合DFBlaser中耦合系数与注入电流的关系。
SUMMARY A reliable and automatic parameter extraction technique for DFB lasers is developed. The parameter extraction program which is named “LAPAREX” is able to determine many device parameters from a measured sub-threshold spectrum only, including gain- and index-coupling coefficients, and spatial phases of the grating at front and rear facets. Injection current dependence of coupling coefficients in a gain-coupled DFBlaser is observed, for the first time, by making use of it.