Photonic processing for wideband cancellation and spectral discrimination of RF signals

Benton, David M. Photonic processing for wideband cancellation and spectral discrimination of RF signals. Advances in Optical Technologies, 2013 ,

Abstract

Photonic signal processing is used to implement common mode signal cancellation across a very wide bandwidth utilising phase modulation of radio frequency (RF) signals onto a narrow linewidth laser carrier. RF spectra were observed using narrow-band, tunable optical filtering using a scanning Fabry Perot etalon. Thus functions conventionally performed using digital signal processing techniques in the electronic domain have been replaced by analog techniques in the photonic domain. This technique was able to observe simultaneous cancellation of signals across a bandwidth of 1400 MHz, limited only by the free spectral range of the etalon.

Publication DOI: https://doi.org/10.1155/2013/738427
Divisions: Engineering & Applied Sciences > Institute of Photonics
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Additional Information: Copyright © 2013 David M. Benton. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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