title: Dual-drive LiNbO3 interferometric Mach-Zehnder architecture with extended linear regime for high peak-to-average OFDM-based communication systems.
abstract: A dual-drive LiNbO(3) architecture modulator with chirp management is proposed and developed offering SFDR > 25 dB in a 1.4 V bias excursion compared to only 0.5 V bias excursion in a conventional Mach-Zehnder electro-optical modulator (MZ-EOM). The architecture effectively extends the linear regime and enables the optical transmission of wireless systems employing orthogonal division multiplexing (OFDM) modulation such as ultra-wide band (UWB) which require high linearity over a broad frequency range due to their high peak-to-average power ratio (PARP). Radio-over-fiber UWB transmission in a passive optical network is experimentally demonstrated employing this technique, exhibiting an enhancement of 2.2 dB in EVM after 57 km SSMF when the dual-drive developed modulator is employed.
authors.affiliation: Nanophotonics Technology Centre, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. mmorant@ntc.upv.es
authors.forename: Maria
authors.initials: M
authors.lastname: Morant
authors.forename: Roberto
authors.initials: R
authors.lastname: Llorente
authors.forename: Jerome
authors.initials: J
authors.lastname: Hauden
authors.forename: Terence
authors.initials: T
authors.lastname: Quinlan
authors.forename: Alexandre
authors.initials: A
authors.lastname: Mottet
authors.forename: Stuart
authors.initials: S
authors.lastname: Walker