Parametric and Raman amplification in birefringent fibers

Trillo, Stefano; Wabnitz, Stefan

doi:10.1364/josab.9.001061

Cited by 101 publications

(41 citation statements)

References 28 publications

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“…As expected, parametric FWM by itself is therefore not efficient due to phase mismatch. The ratio of Stokes and anti-Stokes powers under non-phase-matched conditions can be estimated to be [42][43][44] …”

Section: Low Peak Power Pumpingmentioning

confidence: 99%

“…3 to be responsible for the development of anti-Stokes Raman components also contributes significantly to the suppression of the Raman gain. The interaction between these two nonlinear processes leads to an explicit dependence of the Raman gain on the ratio of chromatic dispersion to nonlinearity, expressed in the mixed parametric-Raman peak gain coefficient [42][43][44] where…”

Section: Suppression Of Incoherent Dynamics At Short Pump Pulse Duratmentioning

confidence: 99%

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Limits of coherent supercontinuum generation in normal dispersion fibers

et al. 2017

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We study the largely unexplored transition between coherent and noise-seeded incoherent continuum generation in all-normal dispersion (ANDi) fibers and show that highly coherent supercontinua with spectral bandwidths of one octave can be generated with long pump pulses of up to 1.5 ps duration, corresponding to soliton orders of up to N = 600. In terms of N, this corresponds to an approximately 50 times increase of the coherent regime compared to anomalous dispersion pumping. In the transition region between coherent and incoherent spectral broadening we observe the manifestation of nonlinear phenomena that we term incoherent cloud formation and incoherent optical wave breaking, which lead to a gradual or instantaneous coherence collapse of SC spectral components, respectively. The role played by stimulated Raman scattering and parametric four-wave mixing during SC generation in ANDi fibers is shown to be more extensive than previously recognized: their nonlinear coupling contributes to the suppression of incoherent dynamics at short pump pulse durations, while it is responsible for non-phasematched parametric amplification of noise observed in the long pulse regime. We further discuss the dependence of SC coherence on fiber design, and present basic experimental verifications for our findings using single-shot detection of SC spectra generated by picosecond pulses. This work outlines both the further potential as well as the limitations of broadband coherent light source development for applications such as metrology, nonlinear imaging, and ultrafast photonics, amongst others.

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Section: Low Peak Power Pumpingmentioning

confidence: 99%

Section: Suppression Of Incoherent Dynamics At Short Pump Pulse Duratmentioning

confidence: 99%

Limits of coherent supercontinuum generation in normal dispersion fibers

et al. 2017

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“…Since parametric and Raman scattering are simultaneously present in optical fibers [75], they can be exploited in combination with polarization cross-modulation in order to achieve efficient polarization attraction. Moreover, it has been theoretically demonstrated that polarization pulling in a low-PMD Raman amplifier is broadband: its bandwidth extends over about 60 nm around the Raman peak Stokes shift of 13.2 THz [76].…”

Section: Dissipative Polarizersmentioning

confidence: 99%

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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“…In these configurations, several studies of FWM process in optical fibers have been carried out, taken into account the quasi-instantaneous response of the nonlinear dielectric medium [16][17][18] and the delayed Raman response [19][20][21][22]. For fiber lengths on the order of the effective length of interaction, the optical fiber can be considered an almost lossless medium.…”

Section: Introductionmentioning

confidence: 99%

Evolution of first-order sidebands from multiple FWM processes in HiBi optical fibers

Silva

Muga

Pinto

2011

Optics Communications

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The generation of two idler waves inside a high birefringent (HiBi) optical fiber through three four-wave mixing (FWM) processes is studied theoretically. The coupled-equations for the field amplitudes are derived and analytically solved, in the co-polarized and orthogonal polarization schemes. The obtained solutions take into account the delayed Raman response of the medium. The polarization sensitivity of the generation of the idler waves is analyzed. Results show that the stimulated Raman scattering does not change the efficiency of the idler wave generation in the co-polarized scheme, whereas in the orthogonal polarization scheme that nonlinear process decreases the efficiency of the four-wave mixing processes. Results also show that this set of multiple four-wave mixing processes is physically quite different from the typical single or dual pump fourwave mixing configurations. Findings show that the power transfer from the pumps to the idler fields can lead to a monotonous growth, or a periodic evolution of the sidebands along the fiber. Results show that the process efficiency varies greatly with the angle between the two pump polarizations.

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Parametric and Raman amplification in birefringent fibers

Cited by 101 publications

References 28 publications

Limits of coherent supercontinuum generation in normal dispersion fibers

Limits of coherent supercontinuum generation in normal dispersion fibers

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

Evolution of first-order sidebands from multiple FWM processes in HiBi optical fibers

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