Calculation of receiver sensitivities in (orthogonal) subcarrier multiplexing microwave-optical links

Gutiérrez, Fernando A., Martin, Eamonn P., Perry, Philip, Ellis, Andrew D. and Barry, Liam P. (2017). Calculation of receiver sensitivities in (orthogonal) subcarrier multiplexing microwave-optical links. Applied Sciences, 7 (2),

Abstract

Microwave-based all-analogue (orthogonal) subcarrier multiplexing (SCM) permits a direct processing of baseband data at Gbit/s while achieving low power consumption, low latency, low cost, and tolerance to dispersion. A key figure of merit in any SCM link is the sensitivity in the receiver, which depends on the transmitter, the link and the receiver. By analysing the impact of the nonlinearities of an optical IQ modulator in the presence of optical noise, sensitivities are mathematically estimated as a function of the optical modulation index (OMI) at the transmitter. The results are verified with simulations achieving a good agreement with the mathematical model. The theoretical model provided can be employed as a tool to predict the best achievable sensitivities and the optimum OMI in broadband SCM and orthogonal SCM links.

Publication DOI: https://doi.org/10.3390/app7020184
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © 2017 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords: direct detection,optical IQ modulator,orthogonal subcarrier multiplexing,subcarrier multiplexing,Applied Mathematics
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2017-02-15
Authors: Gutiérrez, Fernando A.
Martin, Eamonn P.
Perry, Philip
Ellis, Andrew D. ( 0000-0002-0417-0547)
Barry, Liam P.

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