High-speed characteristics of VCSELs
High-speed characteristics of VCSELs
复制标题
VCSEL 的高速特性
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
Ralph H. Johnson
中科院分区：
文献类型：
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作者：
J. Tatum;David S. Smith;J. Guenter;Ralph H. Johnson
介绍了用于现代高带宽光纤网络的垂直腔面发射激光器（VCSEL）的高速特性。建立了基于微波网络分析仪S11测量的等效电路模型。研究了多横模垂直腔面发射激光器的动态特性.在实验上，研究了具有两个正交偏振模的激光器。我们表明，每个横向激光模式可能有显着不同的上升和下降时间。多模速率方程模型用于预测每个模式的精确脉冲形状。激光增益饱和的总光强，和模式功率的总和示出有一个恒定的上升和下降时间。系统性能的误码率方面也进行了研究。我们证明，选择性衰减的光学模式可以导致由于偏振划分噪声的误码率的增加。
The high speed characteristics of Vertical Cavity Surface Emitting Lasers (VCSELs) for use in modern high bandwidth fiber optical networks is presented. An equivalent circuit model based on microwave network analyzer S11 measurements is developed. The dynamic operation of multi- transverse mode VCSELs is also investigated. Experimentally, a laser with two orthogonally polarized modes is examined. We show that each of the transverse laser modes may have significantly different rise and fall times. A multimode rate equation model is used to predict the exact pulseshape for each mode. The laser gain is saturated by the total optical intensity, and the sum of the modal powers is shown to have a constant rise and fall time. The system performance in terms of the bit error rate is also investigated. We demonstrate that selective attenuation of the optical modes can lead to an increase in the bit error rate due to polarization partitioning noise.