DocumentCode
3194135
Title
Noise Reduction in Class-AB Microwave-Photonic Links
Author
Darcie, Thomas E. ; Moye, Amol ; Driessen, Peter F. ; Bull, Jeffrey D. ; Kato, Hiroshi ; Jaeger, Nicolas A F
Author_Institution
University of Victoria, Victoria, British Columbia, Canada, V8W 3P6
fYear
2005
fDate
12-14 Oct. 2005
Firstpage
329
Lastpage
332
Abstract
A Class-AB microwave-photonic link is presented as a means to reduce noise associated with DC-bias. By operating with two complementary, approximately half-wave-rectified, optical sources and generating the difference in a balanced detector, linear modulation with high modulation efficiency is achieved with near zero DC. Using two mode-converter intensity modulators, we demonstrate a 5 dB reduction in shot noise and elimination of intensity noise, relative to a quadrature-biased Mach-Zehnder, for the same received RF signal power.
Keywords
Microwave-photonic; analog links; class AB; intensity-noise suppression; low-bias; subcarrier; DC generators; Gunshot detection systems; High power microwave generation; Intensity modulation; Noise generators; Noise reduction; Optical modulation; Optical noise; Power generation; Signal generators; Microwave-photonic; analog links; class AB; intensity-noise suppression; low-bias; subcarrier;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Photonics, 2005. MWP 2005. International Topical Meeting on
Print_ISBN
89-950043-3-9
Type
conf
DOI
10.1109/MWP.2005.203605
Filename
1590333
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