title: Variable carrier reduction in radio-over-fiber systems for increased modulation efficiency using a Si3N4 tunable extinction ratio ring resonator.
abstract: Variable optical carrier reduction via the use of a Si(3)N(4) ring resonator notch filter with tunable extinction ratio is demonstrated in a 10 GHz radio-over-fiber system for improving the modulation efficiency. The extinction of the filter notch is tuned with micro-heaters, by setting the Mach-Zehnder coupler of the ring. Experimental results showing a modulation depth improvement of up to 20 dB are provided.
authors.affiliation: Department of Electrical & Computer Engineering, University of Cyprus, Nicosia 1678, Cyprus. perentos@ucy.ac.cy
authors.forename: Andreas
authors.initials: A
authors.lastname: Perentos
authors.forename: Francisco
authors.initials: F
authors.lastname: Cuesta-Soto
authors.forename: Manuel
authors.initials: M
authors.lastname: Rodrigo
authors.forename: Antonio
authors.initials: A
authors.lastname: Canciamilla
authors.forename: Borja
authors.initials: B
authors.lastname: Vidal
authors.forename: Luigi
authors.initials: L
authors.lastname: Pierno
authors.forename: Amadeu
authors.initials: A
authors.lastname: Griol
authors.forename: N S
authors.initials: NS
authors.lastname: Losilla
authors.forename: Laurent
authors.initials: L
authors.lastname: Bellieres
authors.forename: Francisco
authors.initials: F
authors.lastname: Lopez-Royo
authors.forename: Andrea
authors.initials: A
authors.lastname: Melloni
authors.forename: Stavros
authors.initials: S
authors.lastname: Iezekiel