DocumentCode
1121409
Title
Optimum emitter aspect ratio for bipolar fiber-optic preamplifiers
Author
Solheim, Alan G. ; Roulston, David J.
Author_Institution
University of Waterloo, Waterloo, Ont., Canada
Volume
8
Issue
9
fYear
1987
fDate
9/1/1987 12:00:00 AM
Firstpage
437
Lastpage
439
Abstract
Many monolithic fiber-optic preamplifiers use a bipolar transistor as the front-end device due to process restraints, despite the relatively poor noise performance of the bipolar transistor. This paper shows that there is an optimum emitter aspect ratio in a bipolar transistor operated at the optimum collector current for noise performance. An expression for this optimum emitter aspect ratio is developed and shown to agree very well with simulation results.
Keywords
Bipolar transistors; Computational geometry; Computational modeling; Computer simulation; Doping profiles; Optical noise; Preamplifiers; Semiconductor device noise; Signal to noise ratio; Solid modeling;
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/EDL.1987.26685
Filename
1487235
Link To Document