Optical amplitude multiplexing through parametric amplification in optical fibers

Author(s)

Abbade, M. L. F. ^[1] ; Costa, A. L. A. ^[2] ; Barbosa, F. R. ^[2] ; Durand, F. R. ^[2] ; Marconi, J. D. ^{[3, 4]} ; Moschim, E. ^[2]

Affiliation

^[1] Pontificia Univ Catolica Campinas, Sch Elect Engn, BR-13086900 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Sch Elect Engn & Comp Sci, BR-13083852 Campinas, SP - Brazil

^[3] Fed Univ ABC, Ctr Engn Modeling & Appl Social Sci, Santo Andre, SP - Brazil

^[4] Univ Estadual Campinas, IFGW, Opt & Photon Res Ctr, BR-13083970 Campinas, SP - Brazil

• Document type: Journal article
• Source: Optics Communications; v. 283, n. 3, p. 454-463, FEB 1 2010.
• Web of Science Citations: 2

Abstract

We propose a new technique that uses parametric amplification in optical fibers to combine two binary signals into a single quaternary amplitude-shift keying (4-ASK) signal. We develop a theoretical model to predict the power level distribution of the 4-ASK signals as a function of the extinction ratios of the input binary signals. Computer simulation results agree with the predictions of this theoretical model within a 0.9 dB margin. We also analyze the application of this technique to the generation of quaternary-amplitude optical packets, which are attractive for allowing the label to be transmitted in the same bandwidth and simultaneously to the payload. Our results indicate that such optical packets may be propagated through lengths comparable to those involved in metropolitan area networks. (C) 2009 Elsevier B.V. All rights reserved. (AU)

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