Noise Reduction in Class-AB Microwave-Photonic Links

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 achie...

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Bibliographic Details
Published in:	2005 International Topical Meeting on Microwave Photonics pp. 329 - 332
Main Authors:	Darcie, T.E., Moye, A., Driessen, P.F., Bull, J.D., Kato, H., Jaeger, N.A.F.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 2005
Subjects:	analog links class AB DC generators Gunshot detection systems High power microwave generation Intensity modulation intensity-noise suppression low-bias Microwave-photonic Noise generators Noise reduction Optical modulation Optical noise Power generation Signal generators subcarrier
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Summary:	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.
ISBN:	9788995004333 8995004339
DOI:	10.1109/MWP.2005.203605