Degradation Characteristics and Mechanism of High Speed 850 nm Vertical-Cavity Surface-Emitting Laser during Accelerated Aging
Degradation Characteristics and Mechanism of High Speed 850 nm Vertical-Cavity Surface-Emitting Laser during Accelerated Aging
复制标题
高速850 nm垂直腔面发射激光器加速老化过程中的退化特性及机理
DOI：
10.3390/photonics9110801
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发表时间：
2022
期刊：
影响因子：
2.4
通讯作者：
Zhipeng Wei
中科院分区：
文献类型：
--
作者：
Jide Zhang;Wenyuan Liao;Xiao;G. Lu;Shaohua Yang;Zhipeng Wei
通过恒流加速老化实验研究了中心波长为850 nm的高速垂直腔面发射激光器的老化过程。通过光输出功率、正向和反向偏置电流-电压关系表征了不同工作条件下光电性能的退化。根据阈值电流以下低频噪声的实验结果，讨论了1/f噪声的特性和形成机理。着重分析了老化前后低频噪声的主要成分、偏置电流依赖性以及噪声的来源。这些退化之间的相关性表明，垂直腔面发射激光器的光电性能损失和低频噪声特性的波动可以归因于缺陷向有源区的传染。失效分析结果进一步证实了老化后缺陷向活性区蔓延的结论。
The degradation process of Vertical-cavity Surface-emitting lasers with high speed and a central wavelength at 850 nm is investigated via constant-current accelerated aging experiments. Degradation of the photoelectric performances under different operating conditions are characterized by optical output power, and forward and reverse bias current–voltage. The 1/f noise characteristics and formation mechanism are discussed in terms of the experimental results of low frequency noise below threshold current. The main composition of low frequency noise before and after aging, the bias current dependence and the origin of the noise are analyzed emphatically. The correlation between the degradation suggests that the loss of photoelectric performance and the fluctuation of low frequency noise characteristic can be attributed to the contagion of defects towards the active region of Vertical-cavity Surface-emitting lasers. Furthermore, the results of failure analysis confirmed the conclusion that the contagion of defects occurred towards the active region of the samples after aging.