Spectral wings of the fiber supercontinuum and the dark-bright soliton interaction

Milián, Carles; Marest, T.; Kudlinski, Alexandre; Skryabin, Dmitry V.

doi:10.1364/oe.25.010494

Cited by 14 publications

(9 citation statements)

References 16 publications

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“…A similar idea based on an input pulse of dark solitons was investigated in Ref. [25]. An interesting prospect would be to use DWs to enhance the SC bandwidth and extend it into new regions when pumping in the NDR.…”

Section: Introductionmentioning

confidence: 98%

Directional supercontinuum generation: the role of the soliton

et al. 2019

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In this paper we numerically study supercontinuum generation by pumping a silicon nitride waveguide, with two zero-dispersion wavelengths, with femtosecond pulses. The waveguide dispersion is designed so that the pump pulse is in the normal-dispersion regime. We show that because of self-phase modulation, the initial pulse broadens into the anomalous-dispersion regime, which is sandwiched between the two normal-dispersion regimes, and here a soliton is formed. The interaction of the soliton and the broadened pulse in the normal-dispersion regime causes additional spectral broadening through formation of dispersive waves by non-degenerate four-wave mixing and cross-phase modulation. This broadening occurs mainly towards the second normal-dispersion regime. We show that pumping in either normaldispersion regime allows broadening towards the other normal-dispersion regime. This ability to steer the continuum extension towards the direction of the other normal-dispersion regime, beyond the sandwiched anomalous-dispersion regime underlies the directional supercontinuum notation. We numerically confirm the approach in a standard silica microstructured fiber geometry with two zero-dispersion wavelengths.

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Section: Introductionmentioning

confidence: 98%

Directional supercontinuum generation: the role of the soliton

et al. 2019

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“…Due to the variety of SC broadening scenario and DOI: 10.1002/lpor.202200754 associated output spectral properties, [1] SC has found numerous applications as ultra-broadband light sources in many fields such as frequency metrology, [2,3] spectroscopy, [4,5] and optical coherence tomography. [6,7] In addition, SC broadening dynamics have also been investigated from a more fundamental viewpoint, being a testbed for the study of exotic phenomena such as rogue waves [8,9] and dark solitons, [10,11] or even exploited as an onset nonlinear broadening stage in cascaded architectures toward ultrashort UV or mid-IR pulse formation. [1] The introduction of photonic crystal fibers (PCF) has made these light sources more accessible as the group velocity dispersion (GVD) of PCFs can be engineered to enable strong nonlinear interactions over significant fiber propagation lengths.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum Generation in Dispersion Engineered Highly Doped Silica Glass Waveguides

Li,

et al. 2023

Laser & Photonics Reviews

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The effect of a lower index oxide layer inclusion within a highly doped silica glass slot waveguide is investigated for optimized supercontinuum generation at telecom wavelengths. By controlling the thickness of the oxide slot, it is demonstrated that one can engineer the waveguide dispersion profile in order to obtain supercontinua with vastly different spectral broadening dynamics and bandwidths. Using this approach, a waveguide with a low and flat dispersion profile of less than 43 across a wavelength range spanning over 1000 nm is designed and fabricated. It is shown that, when pumped at the telecom C‐band, a supercontinuum that spans over 1.5 octaves can be generated from 817 to 2183 nm. The numerical simulations, whose parameters are derived from the measured waveguide dimension and material indices, exhibit good agreement with experimental measurements, where one can observe both a qualitative and quantitative match in the supercontinuum overall spectrum and specific features (e.g., soliton and dispersive wave locations). This study represents an important step forward in the control and manipulation of dispersive and nonlinear dynamics in highly doped silica glass waveguides, paving the way toward advanced on‐chip broadband light manipulation.

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“…Supercontinuum generation is an important nonlinear process, which finds applications in a number of fields including metrology, optical coherence tomography, spectroscopy and pulse compression 15 . It has also been instrumental for investigating exotic phenomena such as rogue waves 16 and dark soliton interactions 17 . This work is therefore crucial for the development of the next generation of compact, power efficient supercontinuum (SC) sources and enhances our understanding of the design and implementation capabilities of the AlGaAs-OI platform.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum generation in dispersion engineered AlGaAs-on-insulator waveguides

May

Clerici

Sorel

2021

Sci Rep

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The effect of engineering the dispersion of AlGaAs-on-insulator (AlGaAs-OI) waveguides on supercontinuum generation is investigated at telecom wavelengths. The pronounced effect the waveguide width has on the nonlinear dynamics governing the supercontinua is systematically analyzed and the coherence of the spectra verified with numerical simulations. Using dispersion engineered AlGaAs-OI waveguides, broadband supercontinua were readily obtained for pulse energies of $$\sim \text {3 pJ}$$ ∼ 3 pJ and a device length of only 3 mm. The results presented here, further understanding of the design and fabrication of this novel platform and describe the soliton and dispersive wave dynamics responsible for supercontinuum generation. This study showcases the potential of AlGaAs-OI for exploring fundamental physics and realizing highly efficient, compact, nonlinear devices.

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Spectral wings of the fiber supercontinuum and the dark-bright soliton interaction

Cited by 14 publications

References 16 publications

Directional supercontinuum generation: the role of the soliton

Directional supercontinuum generation: the role of the soliton

Supercontinuum Generation in Dispersion Engineered Highly Doped Silica Glass Waveguides

Supercontinuum generation in dispersion engineered AlGaAs-on-insulator waveguides

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