DocumentCode
988510
Title
Noise and responsivity of commercial p+n Ge avalanche photodiodes
Author
Brain, M.C.
Author_Institution
British Telecom Research Laboratories, Ipswich, UK
Volume
19
Issue
20
fYear
1983
Firstpage
813
Lastpage
815
Abstract
Commercial p+n Ge APD samples from two manufacturers are shown to have comparable noise and responsivity, characterised by a quantum efficiency at 1.3 ¿m wavelength of 0.7¿0.75, and a bulk leakage current density at 20 C of 2¿3Ã10¿4 A cm¿2 before avalanche multiplication. Surface uniformity of avalanche gain is much better than on earlier n+p devices of the same diameter (100 ¿m).
Keywords
avalanche photodiodes; electron device noise; elemental semiconductors; germanium; photodetectors; Ge avalanche photodiodes; avalanche gain; bulk leakage current density; commercial devices; electron device noise; elemental semiconductors; noise; p+n structure photodetectors; quantum efficiency; responsivity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19830555
Filename
4248074
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