波导雪崩光电探测器(wg - apd)增益的随机建模

Y. El-Batawy, M. Wafa
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引用次数: 0

摘要

当入射光信号和光产生的载流子在垂直方向上运动时,波导光探测器被认为是高速光探测的一个有前途的候选者,它克服了传输时间带宽和量子效率之间的权衡。在雪崩光电探测器(wg - apd)中,雪崩倍增增益增强了光电二极管的光电流。在这些光电二极管中,光生电子和空穴的电离系数以及倍增层尺寸的不准确性影响了器件的倍增增益及其功能。本文在蒙特卡罗模拟和光电探测器频率响应的基础上,对WG分离吸收倍增型apd的倍增增益进行了随机分析。
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A Stochastic Modeling of the Gain in Waveguide Avalanche Photodetectors (WG-APDs)
Waveguide photodetectors are considered as a promising candidate for high speed photodetection where the tradeoff between the transit time bandwidth and the quantum efficiency is overcome as the incident optical signal and the photogenerated carriers move in perpendicular directions. In WG-Avalanche Photodetectors (WG-APDs), the avalanche multiplication gain enhances the photocurrent of the photodiodes. In these photodiodes, the inaccuracies in the ionizations coefficients of the photogenerated electrons and holes and in the dimensions of the multiplication layer affect the multiplication gain of the device and its functionality. In this paper, a stochastic analysis of the multiplication gain of the WG - separated absorption multiplication-APDs is presented, that is based on Monte Carlo simulations and on the frequency response of the photodetector.
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