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1550 nm垂直腔面发射激光器的特征参量随温度的变化
引用本文:马凌华,夏光琼,陈建军,吴正茂.1550 nm垂直腔面发射激光器的特征参量随温度的变化[J].物理学报,2018,67(21):214203-214203.
作者姓名:马凌华  夏光琼  陈建军  吴正茂
作者单位:1. 西南大学物理科学与技术学院, 重庆 400715; 2. 新疆医科大学医学工程技术学院, 乌鲁木齐 830011
基金项目:国家自然科学基金(批准号:61475127,61575163,61775184,31760269,61875167)资助的课题.
摘    要:在采用自旋反转模型分析垂直腔面发射激光器(VCSELs)动力学行为的过程中,为了正确预测VCSELs的动力学行为,需要准确给出自旋反转模型中光场衰减速率k、总反转载流子衰减速率γN、线性二向色性系数γa、线性双折射系数γp、自旋反转速率γs和线宽增强因子α这6个特征参量.本文对1550 nm VCSELs在自由运行和平行光注入下的输出特性进行实验分析,获取了这6个特征参量的值,并着重研究了当激光器温度在10.00–30.00 ℃范围内变化时,这6个特征参量呈现的变化趋势.研究结果表明,随着温度的逐渐升高,γp整体呈现逐渐增加的趋势,γa,γs,γN和k呈现复杂的变化趋势,而α则呈现逐渐减小的趋势.

关 键 词:1550  nm垂直腔面发射激光器  自旋反转模型  特征参量  温度变化
收稿时间:2018-03-30

Temperature dependence of characteristic parameters of 1550 nm vertical-cavity surface-emitting laser
Ma Ling-Hua,Xia Guang-Qiong,Chen Jian-Jun,Wu Zheng-Mao.Temperature dependence of characteristic parameters of 1550 nm vertical-cavity surface-emitting laser[J].Acta Physica Sinica,2018,67(21):214203-214203.
Authors:Ma Ling-Hua  Xia Guang-Qiong  Chen Jian-Jun  Wu Zheng-Mao
Institution:1. School of Physical Science and Technology, Southwest University, Chongqing 400715, China; 2. School of Medical Engineering Technology, Xinjiang Medical University, Urumqi 830011, China
Abstract:Compared with conventional edge-emitting semiconductor lasers, vertical-cavity surface-emitting lasers (VCSELs) exhibit many advantages such as low power consumption, low threshold current, single longitudinal-mode operation, circular output beam with narrow divergence, on-wafer testing capability, high bandwidth modulation, low cost and easy large-scale integration into two-dimensional arrays, etc. VCSELs have been widely adopted in various applications such as optical communication, optical storage, parallel optical links, etc. At the same time, the rich dynamic characteristics of VCSELs have always been one of the frontier topics in the field of laser research, and many theoretically and experimentally investigated results have been reported. For theoretically investigating the dynamical characteristics of VCSELs, the spin-flip model (SFM) is one of most commonly and effectively used methods. In order to accurately predict the nonlinear dynamical performance of a 1550 nm-VCSEL, six characteristic parameters included in the rate equations of the SFM need to be given accurately. The six characteristic parameters are the decay rate of field k, the decay rate of total carrier population γN, the linear anisotropies representing dichroism γa, the linear anisotropies representing birefringence γp, the spin-flip rate γs, and the linewidth enhancement factor α. In this work, through experimentally analyzing the output performances of a 1550 nm-VCSEL under free-running and parallel polarized optical injection, such six characteristic parameters included in the SFM are extracted first in the case that the temperature of the VCSEL is set to be 20.00℃. Furthermore, through gradually increasing the temperature of the 1550 nm-VCSEL from 10.00℃ to 30.00℃, the dependence of the six characteristic parameters on the temperature of the 1550 nm-VCSEL is investigated emphatically. The results show that with the increase of temperature of the 1550 nm-VCSEL, the linear anisotropy representing birefringence γp behaves as an increasing trend, and the linewidth enhancement factor α shows a decreasing trend. However, the other four characteristic parameters present complex varying trends with the increase of the temperature of the 1550 nm-VCSEL. The research in this paper is helpful in accurately understanding and controlling the dynamical characteristics of the VCSEL, and we hope that it can give a guidance for practical applications.
Keywords:1550 nm vertical-cavity surface-emitting lasers  spin-flip model  characteristic parameters  temperature variation
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