Modeling Sources of Nonlinearity in a Simple p-i-n Photodetector

@article{Hu2014ModelingSO,
  title={Modeling Sources of Nonlinearity in a Simple p-i-n Photodetector},
  author={Yue Hu and Brian S. Marks and Curtis R. Menyuk and Vincent J. Urick and Keith J. Williams},
  journal={Journal of Lightwave Technology},
  year={2014},
  volume={32},
  pages={3710-3720}
}
Nonlinearity in p-i-n photodetectors leads to power generation at harmonics of the input frequency, limiting the performance of RF-photonic systems. We use one-dimensional and two-dimensional simulations of the drift-diffusion equations to determine the physical origin of the saturation in a simple heterojunction p-i-n photodetector at room temperature. Incomplete ionization, external loading, impact ionization, and the Franz-Keldysh effect are all included in the model. Impact ionization is… 

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