ABC-model analysis of gain-switched pulse characteristics in low-dimensional semiconductor lasers

作者：Bao, Xumin; Liu, Yuejun; Weng, Guoen; Hu, Xiaobo; Chen, Shaoqiang^*

来源：Quantum Electronics, 2018, 48(1): 7-12.

DOI：10.1070/QEL16424

• rate equation
• gain-switching
• Auger recombination
• semiconductor laser

The gain-switching dynamics of low-dimensional semiconductor lasers is simulated numerically by using a two-dimensional rate-equation model. Use is also made of the ABC model, where the carrier recombination rate is described by a function of carrier densities including Shockley - Read - Hall (SRH) recombination coefficient A, spontaneous emission coefficient B and Auger recombination coefficient C. Effects of the ABC parameters on the ultrafast gain-switched pulse characteristics with high-density pulse excitation are analysed. It is found that while the parameter A has almost no obvious effects, the parameters B and C have distinctly different effects: B influences significantly the delay time of the gain-switched pulse, while C affects mainly the pulse intensity.

• 出版日期2018
• 单位华东师范大学