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垂直耦合腔面发射激光器阈值特性研究

Research of threshold characteristics of coupled-cavity vertical-cavity surface emitting lasers
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摘要 为了研究垂直耦合腔面发射激光器(CC-VCSELs)阈值特性,利用传输矩阵法计算了其阈值载流子浓度,在此基础上结合载流子速率方程讨论了阈值电流,得到了CC-VCSELs的双阈值点(1mA,0.75mA)与阈值电流关系曲线。数值计算结果比较表明,利用传输矩阵与载流子速率方程相结合的方法研究CC-VCSELs的阈值特性优于速率方程法,且数值计算结果与实验结果相吻合。 In order to study the threshold characteristics of coupled-cavity vertical-cavity surface emitting lasers （CC- VCSELs） ,the threshold carrier density of CC-VCSELs was calculated based on transfer matrix method. Then the threshold current was discussed with the carrier rate equation based on threshold carrier density. The curve of “Double Threshold” point （ 1 mA＇, 0.75mA） and threshold currents curve was obtained. Numerical calculated shows that the results obtained by transfer matrix and carrier rate equation are better than those obtained by rate equation, and the calculation result agreed with the experiment.
作者 罗广军 罗斌 潘炜 卢静 李建平
机构地区 西南交通大学信息科学与技术学院
出处 《激光技术》 CAS CSCD 北大核心 2007年第6期616-619,共4页 Laser Technology
关键词 激光器 阈值电流 传输矩阵 反射增益 lasers threshold currents transfer matrix reflection gain
分类号 TN248.4 [电子电信—物理电子学]
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参考文献10

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激光技术
2007年 第6期

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