Keywords

Avalanche diode, Optical detectors

Abstract

Major advances in fiber optic transmissions have brought about a need for highly sensitive photodetectors. In order to detect this type of transmission, the photodetector must be able to detect one of the two low loss windows of the fiber optics transmission. The photodetector must also be characterized by a high gain and fast speed of response without generating excessive noise power. This report compares different types of high speed phodetectors with emphasis on the merits of using an avalanche photodiode. The report studies the avalanche multiplication and the signal-to-noise power ratio in the ternary InGaAs. The effects of the absorption coefficient, the depletion width, and the impurity concentration are studied. Finally, an optimization of the signal-to-noise power ratio is achieved by selecting the proper impurity concentration profile at suitable values of absorption coefficient and epitaxial width.

Notes

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Graduation Date

1979

Degree

Master of Science (M.S.)

College

College of Engineering

Format

PDF

Pages

vii, 68 pages

Language

English

Rights

Public Domain

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0013263

Subjects

Diodes -- Avalanche, Optical detectors

Collection (Linked data)

Retrospective Theses and Dissertations

Included in

Engineering Commons

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