| 摘要: |
| 考虑垂直腔面发射激光器（VCSEL）在稳态时载流子数和光子数关系，改进了工作电流与输出光功率强度（L-I）模型的经验公式，利用交替方向乘子法，基于实测数据确定模型的参数.该模型在考虑激光器的偏置电流受激光器温度影响的同时，还考虑了激光器内部参数之间的耦合关系.仿真结果显示，改进后的模型所得参数，代入经验L-I模型，在相同算法条件下，和实测数据之间的均方误差值比仅考虑激光器偏置电流受温度影响的L-I模型的参数估计方法降低了约1.61 dB.同时，在较高的温度下工作，改进L-I曲线工作电流的有效区间更大. |
| 关键词: 垂直腔面发射激光器(VCSEL) 工作电流与输出光功率强度(L-I)模型 交替方向乘子法 |
| DOI：10.3969/J.ISSN.1000-5137.2018.02.002 |
| 分类号:TN248.4 |
| 基金项目:国家自然科学基金青年科学基金（61701307）；上海高校青年教师培养资助计划（ZZssd16044）；上海师范大学校级一般项目（SK201716） |
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| Improved parameter estimation method for L-I model of VCSEL |
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Hu Yilue, Feng Wei, Li Min, Li Li, Peng Zhangjie, Luo Hanwen
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The College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| Considering carrier number and photon number of vertical cavity surface emitting laser(VCSEL) in steady state,an improved empirical formula of working current and the output light power intensity(L-I) model was proposed,which employed the alternating direction method of multipliers algorithm,to determine the empirical model parameters based on measured data.Besides,this model took into account not only the effect of laser temperature on the laser bias current,but also the coupling relationship between the internal parameters of the laser.The simulation results showed that the value of mean square error between the estimated data and measured data was reduced by about 1.61 dB,by employing the same algorithm,using the improved model parameters into empirical L-I model than L-I model parameters only considering the laser bias current affected by temperature.At the same time,the effective interval of the working current of the improved L-I curve was greater when working at a higher temperature. |
| Key words: vertical cavity surface emitting laser (VCSEL) working current and the output light power intensity (L-I) model alternating direction method of multipliers algorithm |
