Title :
Two-photon absorption effects on self-phase-modulation-based 2R optical regeneration
Author :
Lamont, Michael R E ; Rochette, Martin ; Moss, David J. ; Eggleton, Benjamin J.
Author_Institution :
Centre for Ultrahigh-bandwidth Devices for Opt. Syst., Univ. of Sydney, NSW
fDate :
5/1/2006 12:00:00 AM
Abstract :
We theoretically investigate the influence of two-photon absorption (TPA) on the performance of self-phase-modulation-based signal regenerators using a split-step Fourier method. Simulations with 40-Gb/s return-to-zero data bit streams show that a device with TPA can improve the signal (higher output Q-factor) significantly more than a device with no TPA, and that the figure of merit of chalcogenide is close to optimal. This contrasts with the effects of TPA on nonlinear switching, which are always detrimental
Keywords :
optical fibre communication; optical repeaters; optical switches; self-phase modulation; two-photon spectra; 2R optical regeneration; 40 Gbit/s; chalcogenide; nonlinear switching; return-to-zero data bit streams; self-phase-modulation; signal regenerators; split-step Fourier method; two-photon absorption effects; Absorption; Fiber nonlinear optics; Nonlinear optics; Optical devices; Optical filters; Optical pulse shaping; Optical refraction; Optical signal processing; Optical variables control; Repeaters; Nonlinear optics; optical fiber devices; optical pulse shaping; optical signal processing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.874718
