Avalanche Multiplication and Excess Noise Factor of Heterojunction Avalanche Photodiodes

You, A. H. and Low, L. C. and Cheang, P. L. (2006) Avalanche Multiplication and Excess Noise Factor of Heterojunction Avalanche Photodiodes. In: IEEE International Conference on Semiconductor Electronics.

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Official URL: http://dx.doi.org/10.1109/SMELEC.2006.381074

Abstract

A Monte Carlo (MC) model to compute the statistics of avalanche multiplication and excess noise factor in heterojunction avalanche photodiode (HAPD) is presented. The proposed model is able to simulate the multiplication gain and excess noise factor incorporating the dead-space effect, band-edge discontinuity and hole to electron ionization ratio in HAPDs. The deadspace effect is included in our model, which has been shown to play an important role in reducing noise in homojunction APDs. It is shown that the dead-space effect also reduces the avalanche noise in heterojunction devices. We demonstrate that the dead-space effect and feedback impact ionization are the dominant effects to improve the excess noise factor in HAPDs.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 21 Sep 2011 08:15
Last Modified: 21 Sep 2011 08:15
URI: http://shdl.mmu.edu.my/id/eprint/2132

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