Simple form of multimode laser diode rate equations incorporating the band filling effect
Simple form of multimode laser diode rate equations incorporating the band filling effect
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DOI：
10.1364/oe.19.003019
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发表时间：
2011-02-14
期刊：
影响因子：
3.8
通讯作者：
Horinaka, Hiromichi
中科院分区：
文献类型：
--
作者：
Wada, Kenji;Yoshioka, Hiroyuki;Horinaka, Hiromichi
为了推导出考虑带填充效应的多模激光二极管速率方程的简单形式，将直接带隙模型中的激光二极管增益引入到传统的多模激光二极管速率方程中。通过对增益开关条件下各模态增益的数值研究，发现透明处的差分增益系数和载流子密度与振荡频率呈近似线性关系。因此，可以推导出具有线性化增益的多模激光二极管速率方程的简单形式，该方程可用于模拟以带填充效应为特征的增益开关激光二极管在多模和单模振荡情况下的行为。(C) 2011美国光学学会
To derive a simple form of the multimode laser diode rate equations incorporating the band filling effect, the laser diode gain in the direct bandgap model is introduced into the conventional multimode laser diode rate equations. By numerically examining each modal gain under the gain-switching condition, it is found that both the differential gain coefficient and the carrier density at transparency show an approximately linear dependency on the oscillation frequency. As a result, it is possible to derive a simple form of the multimode laser diode rate equations with linearized gain, which can be used to simulate the behaviors of a gain-switched laser diode characterized by the band filling effect, in both the multimode and single-mode oscillation cases. (C) 2011 Optical Society of America