Photonic Processing for Wideband Cancellation and Spectral Discrimination of RF Signals. (5th December 2013)

• Record Type: Journal Article
• Authors: Benton, David M.
• Other Names: Beléndez Augusto Academic Editor.
• Is Part Of: Advances in optical technologies. Volume 2013(2013)
• Publication Date: 2013-12-05
• Subjects: Optoelectronics -- Periodicals; Optoelectronics; Physics; Periodicals; Electronic journals; 621.36
• DOI: 10.1155/2013/738427
• Languages: English
• ISSNs: 1687-6393

Abstract

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 Thus functions conventionally performed using digital signal processing techniques in the electronic domain have been replaced by analog techniques in the photonic domain.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.