Observation of induced modulational polarization instabilities and pulse-train generation in the normal-dispersion regime of a birefringent optical fiber

Millot, Guy; Seve, E.; Wabnitz, Stefan; Haelterman, Marc

doi:10.1364/josab.15.001266

Cited by 55 publications

(22 citation statements)

References 23 publications

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“…For instance, the MI scenario in the normal dispersion regime of birefringent fibers and the critical MI regime were discussed in [15][16][17]. MI in the context of ultrashort pulse generation in birefringent fibers was analyzed in [18]. A comprehensive picture of MI with higher-order dispersion and stimulated Raman scattering was discussed both theoretically and experimentally by Dinda and co-workers [17,19,20].…”

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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“…8 with a pump power P p 112 W 1.6P t and for the experimental conditions described in Ref. [105]. Here the solid and dashed curves were obtained for a pump aligned with the slow and the fast axes, respectively, of the ultralow-birefringence spun fiber.…”

Section: Fast-and Slow-axis Asymmetrymentioning

confidence: 99%

“…The pump (signal) power is 112 (1.1) W, and the probe frequency detuning is 0.3 THz. (b2), (b4) As in parts (b1) and (b3) with a probe detuning of 1.2 THz (from [105]). generated.…”

Section: Fast-and Slow-axis Asymmetrymentioning

confidence: 99%

“…The repetition rate of the pulses is given by the modulational frequency, which is equal to the detuning between the signal and the pump waves. The temporal shape of these ultrashort pulses depends not only on the powers of the different waves but also on the modulational frequency [105]. In particular, trains of dark solitons with a terahertz repetition rate have been generated by modulational instability induced by cross-polarization modulation (XPolM-MI) in ultralow birefringence optical fibers [120].…”

Section: Polarization Modulation Instability In Photonic Crystal Fibermentioning

confidence: 99%

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Nonlinear polarization effects in optical fibers: polarization attraction and modulation instability [Invited]

Millot

Wabnitz

2014

J. Opt. Soc. Am. B

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We review polarization stabilization techniques based on the polarization attraction effect in low-birefringence fibers. Polarization attraction or pulling may be based on cross-polarization modulation, on parametric amplification, and on Raman or Brillouin scattering. We also review methods for laser frequency conversion based on polarization modulation instabilities in low-and high-birefringence fibers, and photonic crystal fibers. Polarization instabilities in nonlinear fibers may also be exploited for sensing applications.

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“…For instance, in nonlinear fiber optics, this phenomenon is essential, as it helps to generate ultrashot pulses. In MI, a continuous or a quasicontinuous wave undergoes a modulation of its amplitude or phase in the presence of noise or any other weak perturbation [1][2][3][4][5][6][7]. The performance and stability of many optical systems crucially depend on several nonlinear phenomena.…”

Section: Introductionmentioning

confidence: 99%

Higher order dispersion effects in the noninstantaneous nonlinear Schrödinger equation

Mohamadou

Tiofack

Ekogo

et al. 2011

Journal of Modern Optics

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We present a systematic analysis of the effects, of higher-order dispersion, noninstantaneous nonlinear response, as well as stochastic coefficients in optical fiber. This study is motivated by recent experimental observation of a new modulational instability spectral window induced by fourth-order dispersion in a normally dispersive singlemode optical fiber. Analytical expression of pulse amplitude is deduced with the second-order gain nonuniformity and the stimulated-Brillouin scattering-induced third-order as well as fourth-order dispersion effects involved. The influence of stochasticity, as well as the delayed Raman response in the nonconventional sidebands obtained due to the fourth-order dispersion, is considered. We note that the shape of the spectrum, and in particular the relative intensities of the higher order harmonics, is highly sensitive to the initial presence of classical noise, and can therefore be taken as a signature that the MI is seeded by vacuum fluctuations. Some direct simulations to see the evolution of different continuous wave states are reported. These show the formation of modulation instability pulses as well as transitions from lower amplitude continuous wave states to higher amplitude continuous wave states. The present results fit well with recent experimental investigations.

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Observation of induced modulational polarization instabilities and pulse-train generation in the normal-dispersion regime of a birefringent optical fiber

Cited by 55 publications

References 23 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

Nonlinear polarization effects in optical fibers: polarization attraction and modulation instability [Invited]

Higher order dispersion effects in the noninstantaneous nonlinear Schrödinger equation

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