A theoretical framework and the computational infrastructure for optical characterization of a waveguide (WG) photodetector (PD) are presented based on multiples quantum well (MQW) with a rib structure that is able to resolve a light pulse with a temporal width of 10[Formula: see text]fs. Such pulses are limited to the C-band of optical telecommunications. This pulse width is shorter than the temporal resolution limit of a commercial PD, due to the nonlinear phenomenon known as nondegenerate two-photon absorption (ND2PA). The results show the importance of the operating characteristics that affect carrier generation rate (CGR).

中文翻译：

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基于多量子阱中的双光子吸收检测超快和近红外脉冲

基于多量子阱 (MQW) 提出了波导 (WG) 光电探测器 (PD) 光学表征的理论框架和计算基础设施，该阱具有能够分辨时间宽度为 10 的光脉冲的肋结构 [公式：见正文]fs。这种脉冲仅限于光通信的 C 波段。由于被称为非简并双光子吸收 (ND2PA) 的非线性现象，该脉冲宽度比商用 PD 的时间分辨率极限短。结果显示了影响载波生成率 (CGR) 的运行特性的重要性。