Effect of Dead Space on Gain and Noise of Double-Carrier-Multiplication Avalanche Photodiodes

Document Type

Article

Publication Date

3-1992

Publisher

Institute of Electrical and Electronics Engineers

Source Publication

IEEE Transactions on Electron Devices

Source ISSN

0018-9383

Abstract

The effect of dead space on the statistics of the gain in a double-carrier-multiplication avalanche photodiode (APD) is determined using a recurrence method. The dead space is the minimum distance that a newly generated carrier must travel in order to acquire sufficient energy to become capable of causing an impact ionization. Recurrence equations are derived for the first moment, the second moment, and the probability distribution function of two random variables that are related, in a deterministic way, to the random gain of the APD. These equations are solved numerically to produce the mean gain and the excess noise factor. The presence of dead space reduces both the mean gain and the excess noise factor of the device. This may have a beneficial effect on the performance of the detector when used in optical receivers with photon noise and circuit noise.

Comments

IEEE Transactions on Electron Devices, Vol. 39, No. 3 (March 1992): 546-552. DOI.

Majeed M. Hayat was affiliated with University of Wisconsin, Madison at the time of publication.

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