title: Characterisation of an optical clock recovery method based on a mode-locked laser diode using spectrographic pulse measurement.
abstract: As channels rates in optical networks are expected to exceed 100 Gb/s in the near future, new optical techniques for clock recovery will have to be developed for optical regeneration. This paper describes an optical clock recovery method based on a mode-locked laser diode. Experimental results show that a 42 GHz high quality optical clock can be retrieved from a 170 Gb/s OTDM data signal. Chirp transfer between the incident signal and the recovered clock signal is investigated using the SHG-FROG method. Results demonstrate that this clock recovery technique is invariant to input dispersion varying between +/-75 ps/nm, making it ideal for use in 3R regenerators.
authors.affiliation: Research Institute for Networks and Communications Engineering, Dublin City University, Dublin 9, Ireland. maguirep@eeng.dcu.ie
authors.forename: P J
authors.initials: PJ
authors.lastname: Maguire
authors.forename: V
authors.initials: V
authors.lastname: Roncin
authors.forename: A
authors.initials: A
authors.lastname: O'Hare
authors.forename: D
authors.initials: D
authors.lastname: Reid
authors.forename: S
authors.initials: S
authors.lastname: Lobo
authors.forename: M
authors.initials: M
authors.lastname: Gay
authors.forename: L
authors.initials: L
authors.lastname: Bramerie
authors.forename: L P
authors.initials: LP
authors.lastname: Barry
authors.forename: J C
authors.initials: JC
authors.lastname: Simon
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D054023:Lasers, Semiconductor; D055095:Optics and Photonics / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013057:Spectrum Analysis / Q000295:instrumentation*