Design of four-wave mixing frequency-shift-free amplitude regenerators

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Author(s):	E. A. M. Fagotto ^[1] ; U. R. C. de Miranda ^[2] ; C. M. T. Tobar ^[3] Total Authors: 3
Affiliation:	^[1] PUC-Campinas. School of Electrical Engineering - Brasil ^[2] PUC-Campinas. School of Electrical Engineering - Brasil ^[3] PUC-Campinas. School of Computing - Brasil Total Affiliations: 3
Document type:	Journal article
Source:	J. Microw. Optoelectron. Electromagn. Appl.; v. 12, n. 1, p. 69-83, 2013-06-00.
Abstract
Frequency-shift-free all-optical amplitude regenerators based on fiber-four-wave mixing were investigated by means of simulations. These regenerators, comprised of two stages of highly nonlinear dispersion-shifted fiber, were designed using a heuristic procedure that implements a routine based on a genetic algorithm to optimize the device performance. A bit error rate improvement of up to four orders of magnitude was found as compared to a previous design approach discussed in the literature. It was due to a proper choice of the pump signal frequency regarding to the input signal that brings about a trade-off between four-wave mixing optical reshaping and four-wave mixing crosstalk leading to optimal optical regeneration. The proposed design method might be applied to other parametric devices that rely on four-wave mixing. (AU)

FAPESP's process:	08/57857-2 - Photonics for optical communications
Grantee:	Hugo Luis Fragnito
Support Opportunities:	Research Projects - Thematic Grants