Title :
A dispersionless and bandwidth-adjustable FBG filter for reconfigurable 2R-regeneration
Author :
Rochette, Martin ; Littler, Ian C M ; McKerracher, Ross W. ; Eggleton, Benjamin J.
Author_Institution :
Centre for Ultrahigh Bandwidth Devices for Opt. Syst., Univ. of Sydney, NSW, Australia
Abstract :
We present a bandwidth-adjustable filter that enables reconfiguration of the bit rate of optical subsystems. This filter is bandwidth-adjustable, wavelength-tunable, and maintains zero dispersion as the bandwidth and wavelength are varied. It also has a transmission spectrum which is Gaussian, to shape Gaussian pulses in the time domain. The ability of the bandwidth-adjustable filter to enable bit-rate reconfiguration is demonstrated in an optical regenerator based on self-phase modulation. The bandwidth-adjustable filter replaces the fixed-bandwidth filter usually used in this kind of regenerator, and enables optical regeneration at both 40 and 80 Gb/s.
Keywords :
Bragg gratings; optical fibre communication; optical fibre filters; optical pulse shaping; optical repeaters; optical tuning; self-phase modulation; 2R-regeneration; 40 Gbit/s; 80 Gbit/s; FBG filter; Gaussian pulse shaping; bandwidth adjustable filter; bit-rate reconfiguration; self-phase modulation; wavelength tuning; zero dispersion; Band pass filters; Bandwidth; Bit rate; Fiber nonlinear optics; Nonlinear optics; Optical attenuators; Optical filters; Optical pulse shaping; Repeaters; Wavelength division multiplexing; Electrooptic devices; gratings; nonlinear optics; optical pulse shaping; optical signal processing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.851022
