摘要
VCSEL激光器（Vertical Cavity Surface Emitting Laser）在现代光纤通信系统中占有十分重要的地位，为了更好的设计高速VCSEL激光器，基于经典的L—I模型、小信号响应模型，通过拟合实验测量的数据进行模型参数的提取，进而探究了偏置电流、环境温度对于VCSEL激光器L—I，特性、频响特性的影响规律．针对经典的三一，模型存在的参数拟合困难、精度不高等缺陷，提出了两种相应的改进模型；针对小信号响应模型只适用于小信号工况下的缺点，引入了一种复合等效电路模型，并对二者进行了比较和分析．
VCSEL （Vertical cavity surface Emitting laser） plays a significant role in modern optical fiber communication, based＇on classical L-I model and small-signal response model, model parameters were obtained by fitting the experimental data, which was later used to re-search the influence that offset current ant environment temperature had on L-I and frequency response features. Two improved models were proposed aiming at some defects of classical L-I model such as hard parameter-fitting and low accuracy. As for the drawback that small-signal response model can only be applied in small-signal condition, a compound equivalent circuit model was introduced and compared with the former one.
作者
杨海洋
徐亚男
任慧杰
YANG Hai-yang;XU Ya-nan;REN Hui-jie(Shanghai Instiute of Space ProPulsion,Shanghai 201112,China;Shanghai Engineering Research Center of Space Engine,Shanghai 201112,China)
出处
《数学的实践与认识》
北大核心
2018年第15期128-137,共10页
Mathematics in Practice and Theory
