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Titolo:
Radiation loss of dispersion-managed solitons in optical fibers
Autore:
Yang, TS; Kath, WL;
Indirizzi:
Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan Natl Cheng KungUniv Tainan Taiwan 70101 Mech Engn, Tainan 70101, Taiwan Northwestern Univ, Robert R McCormick Sch Engn & Appl Sci, Evanston, IL 60208 USA Northwestern Univ Evanston IL USA 60208 Appl Sci, Evanston, IL 60208 USA
Titolo Testata:
PHYSICA D
fascicolo: 1-2, volume: 149, anno: 2001,
pagine: 80 - 94
SICI:
0167-2789(20010201)149:1-2<80:RLODSI>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
CAPILLARY SOLITARY WAVES; ENHANCED-POWER SOLITONS; ZERO AVERAGE DISPERSION; PULSE-PROPAGATION; TRANSMISSION-SYSTEMS; WDM; COMPENSATION; REDUCTION; EQUATION; DYNAMICS;
Keywords:
optical fiber communication; dispersion management; solitons; perturbed nonlinear Schrodinger equation; asymptotics beyond all orders;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Yang, TS Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan Natl Cheng Kung Univ Tainan Taiwan 70101 , Tainan 70101, Taiwan
Citazione:
T.S. Yang e W.L. Kath, "Radiation loss of dispersion-managed solitons in optical fibers", PHYSICA D, 149(1-2), 2001, pp. 80-94

Abstract

A nonlinear optical fiber with a periodic group-velocity dispersion variation, called a dispersion-map, allows transmission of breathing soliton-likepulses. These pulses, commonly referred to as dispersion-managed solitons (even though they are not true solitons). experience substantial distortionwithin each map period but recover their shapes after each complete cycle. Since linear dispersive waves composed of particular frequencies can oscillate with the same period as the dispersion-managed soliton, the two can couple together in a nonlinear resonance. As a result, dispersion-managed solitons tend to radiate. Here we calculate the radiation intensity by analyzing the nonlinear Schrodinger equation with a periodic dispersion coefficient. When the dispersion-map period is shorter than the average dispersion length, the radiation intensity is Sound to be exponentially small and can bedetermined by the techniques of asymptotics beyond all orders. It is shownthat the resonant radiation generally has nonzero intensity and thus drains energy from dispersion-managed solitons, so that they are thus not truly periodic. We also show that there are low-radiation windows for particular parameter values where the dispersive radiation shed is greatly diminished. (C) 2001 Published by Elsevier Science B.V.

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Documento generato il 30/09/20 alle ore 00:46:32