Open AccessLarge signal analysis on intensity‐modulation direct‐detection radio‐over‐fibre dispersive links
Author(s) -
Ferreira Júnior Antonio Alves,
Ribeiro José Antônio Justino,
Spadoti Danilo Henrique
Publication year - 2022
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12370
Subject(s) - sideband , intensity modulation , signal (programming language) , compatible sideband transmission , amplitude modulation , modulation (music) , pulse amplitude modulation , analog transmission , frequency modulation , optical modulation amplitude , optics , radio frequency , dispersion (optics) , amplitude , physics , telecommunications , acoustics , computer science , phase modulation , analog signal , transmission (telecommunications) , pulse (music) , optical amplifier , phase noise , laser , detector , programming language
This letter proposes a frequency domain closed‐form analytical solution for large signal condition in radio‐over‐fibre systems that employ external intensity‐modulation and direct‐detection. The received radio frequency signal power was used to evaluate the chromatic dispersion effect in optical links. To the best of knowledge, a comparison between large signal with small signal solutions has been theoretically presented here for the first time. For analogue optical amplitude modulations, the double sideband showed a 30 dB difference between the approaches, a 9 dB for the single sideband, and 17 dB for the suppressed carrier.