Nonlinear Optical Angle Modulation for Suppression of RF Interference

A new optical technique for suppression of electronic interference is detailed theoretically and experimentally. The method is based on operating an angle-modulated photonic link in its nonlinear regime, where Bessel functions govern the response. This novel signal-processing technique is analyzed f...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2016-07, Vol.64 (7), p.2198-2204
Main Authors: Urick, Vincent J., Diehl, John F., McKinney, Jason D., Singley, Joseph M., Sunderman, Christopher E.
Format: Article
Language:English
Subjects:
Integrated optics
Interference suppression
microwave photonics
Nonlinear optics
Optical interferometry
Optical modulation
optical signal processing
Phase modulation
Radio frequency
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Summary:A new optical technique for suppression of electronic interference is detailed theoretically and experimentally. The method is based on operating an angle-modulated photonic link in its nonlinear regime, where Bessel functions govern the response. This novel signal-processing technique is analyzed for optical intensity and phase modulation. Experimental results demonstrate suppression of continuous-wave, pulsed, and chirped signals at levels ranging from at least 30 dB to upwards of 70 dB relative to small-signal conditions.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2016.2549521