Polarization-resolved characterization of long-wavelength vertical-cavity surface-emitting laser parameters

Polarization-resolved characterization of long-wavelength vertical-cavity surface-emitting laser parameters
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长波长垂直腔面发射激光器参数的偏振分辨表征

DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
L. Pesquera
L. Pesquera
中科院分区：
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文献类型：
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作者：
P. Pérez;A. Valle;L. Pesquera

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从连续波高分辨率光谱分析出发，测量了1550 nm单横模垂直腔面发射激光器（VCSEL）的偏振特性参数。在我们的装置中观察到电流感应极化开关（PS）。在PS点观察到有效二色的绝对值最小。有效双折射的值在观察PS的电流处具有不连续。双折射振荡与偏置电流也被观察到。利用PS特性提取了描述VCSEL偏振特性的参数。得到的自发发射分数和自旋翻转速率的值比这些器件的理论模型中通常使用的值要大。
A measurement of the parameters characterizing polarization behavior of a 1550 nm single transverse mode vertical-cavity surface-emitting laser (VCSEL) is presented from the analysis of CW high-resolution optical spectra. Current-induced polarization switching (PS) is observed in our device. A minimum in the absolute value of the effective dichroism is observed at the PS point. The value of the effective birefringence has a discontinuity at the current at which PS is observed. Birefringence oscillations with the bias current are also observed. PS characteristics are used for the extraction of the parameters describing the polarization behavior of the VCSEL. Obtained values of the spontaneous emission fraction and spin-flip rate are larger than those typically used in theoretical modeling of these devices.