Modulational instability in fiber systems with periodic loss compensation and dispersion management

Kumar, Ajit; Labruyère, Alexis; Dinda, P. Tchofo

doi:10.1016/s0030-4018(03)01290-2

Cited by 35 publications

(19 citation statements)

References 19 publications

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“…Based on the nature of the perturbation MI can be named either as spontaneous or induced MI. The potential applications of MI, such as the generation of ultrashort pulse trains with high repetition rate [6], the generation of an ultrabroadband spectrum in the name of supercontinuum generation [7], and alloptical switching, material absorption and loss compensation, dispersion management [8,9], etc., have made MI the subject of intense investigation for more than three decades.…”

Section: Introductionmentioning

confidence: 99%

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Nithyanandan

Raja

2012

J. Opt. Soc. Am. B

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A theoretical study of modulational instability (MI) in the semiconductor doped dispersion decreasing fiber (SD-DDF) is presented. We consider the combination of saturation of nonlinear response and the dispersion decreasing fiber (DDF). The exact dispersion relation is calculated by means of linear stability analysis. Different fiber systems are considered alongside the proposed SD-DDF for insight and to offer the cutting edge of the proposed model over the others. The two extreme physical effects considered lead to an exciting outcome, where decreasing dispersion leads to broadening the spectral width and saturation, on the other hand, suppresses the MI gain and the bandwidth. A bandwidth relation between different fiber systems is presented, and the idea can open the design of a fiber structure with desired dispersion profile by a suitable manipulation of these effects. We propose that instead of using DDF whose bandwidth is limited by the manufacturing constraints, the use of SD-DDF offers better tailoring of the bandwidth profile by suitably altering the saturation parameter. Thus we emphasize that the proposed SD-DDF will be a feature prospect for wide range of applications, especially in the context of ultrashort pulse generation using MI.

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Section: Introductionmentioning

confidence: 99%

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Nithyanandan

Raja

2012

J. Opt. Soc. Am. B

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“…Nevertheless, we checked that these effects do not have a noticeable influence on the MI spectral dynamics that we are going to describe. MI induced by the longitudinal variations of chromatic dispersion has been theoretically investigated before in a wide range of configurations, ranging from sinusoidal profiles with a spatial period of a few tens of meters [5,9], up to dispersion-managed systems with periods of several kilometers [6,[12][13][14]. We consider in this contribution the specific case of DOF whose parameters are inspired by the previous numerical works which were carried out in the context of the transmission of high-speed telecommunication signals in dense dispersion managed links [15].…”

Section: Model and Situation Under Investigationmentioning

confidence: 99%

Gain sideband splitting in dispersion oscillating fibers

Finot

Fang

Chembo

et al. 2014

Optical Fiber Technology

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a b s t r a c tWe analyze the modulation instability spectrum in a varying dispersion optical fiber as a function of the dispersion oscillation amplitude. For large dispersion oscillations, we predict a novel sideband splitting into different sub-sidebands. The emergence of the new sidebands is observed whenever the classical perturbation analysis for parametric resonances predicts vanishing sideband amplitudes. The numerical results are in good quantitative agreement with Floquet or Bloch stability analysis of four-wave mixing in the periodic dispersion fiber. We have also shown that linear gain or loss may have a dramatic influence in reshaping the new sidebands.

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“…It induces parametric amplification of spectral components near the signal wavelength. This may lead to broadening of the signal spectrum, signal distortion, and enhanced noise from amplified spontaneous emission (ASE) of optical amplifiers (Kikuchi 1993;Kumar et al 2003) resulting in degraded signal to noise ratio (SNR) and will limit maximum optical amplifier output power. So, its impact on system performance can be catastrophic as the bitrate increases.…”

Section: Introductionmentioning

confidence: 99%

Induced modulational instability in EDFAs in the presence of higher-order nonlinear and dispersive effects

Tehranchi

Granpayeh

2007

Opt Quant Electron

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We derive the dispersion equation for erbium doped fiber amplifiers (EDFAs), assuming the supplementary effects of time-derivative nonlinearities including intrapulse Raman scattering and self-steepening incorporated with third order dispersion and product of gain and square of dipole relaxation time parameter, in the extended form of nonlinear Schrödinger equation and investigate their impacts on gain and cut-off frequency of modulational instability (MI) in EDFAs. Also, the influences of those effects on instability of steady-state amplitude, in the form of generation of terahertz pulse train of femtosecond solitons from a weak-modulated signal by induced MI, are numerically simulated and discussed within EDFAs in normalized form.

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Modulational instability in fiber systems with periodic loss compensation and dispersion management

Cited by 35 publications

References 19 publications

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Gain sideband splitting in dispersion oscillating fibers

Induced modulational instability in EDFAs in the presence of higher-order nonlinear and dispersive effects

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