Generation of ultra-broadband coherent supercontinua in tapered and dispersion-managed silicon nanophotonic waveguides

@article{Ciret2016GenerationOU,
  title={Generation of ultra-broadband coherent supercontinua in tapered and dispersion-managed silicon nanophotonic waveguides},
  author={Charles Ciret and Simon-Pierre Gorza},
  journal={Journal of The Optical Society of America B-optical Physics},
  year={2016},
  volume={34},
  pages={1156-1162}
}
  • C. CiretS. Gorza
  • Published 18 October 2016
  • Physics
  • Journal of The Optical Society of America B-optical Physics
The generation of an optimal ultra-broadband supercontinuum (SC) is numerically investigated in tapered and dispersion-managed (DM) silicon nanophotonic waveguides. DM waveguides are structures showing a longitudinally dependent group velocity dispersion that results from the variation of the waveguide width with the propagation distance. A genetic algorithm is used to find the best dispersion map. This allows for the generation of highly coherent supercontinuums that span over 1.14 octaves… 

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References

SHOWING 1-10 OF 36 REFERENCES

Generation of coherent supercontinuum in a-Si:H waveguides: experiment and modeling based on measured dispersion profile.

Numerical modeling of pulse propagation in the waveguide shows that the supercontinuum is the result of soliton fission and dispersive wave generation, which confirms the higher performances of a-Si:H over c-Si for broadband low power SC generation at telecommunication wavelengths.

Supercontinuum generation in dispersion-managed tapered-rib waveguide.

The proposed waveguide geometry greatly broadens the output spectrum, extending from ∼1 to ∼6  μm, caused by the continuous modification of the phase-matching condition for the generated waves.

Simulation of octave spanning mid-infrared supercontinuum generation in dispersion-varying planar waveguides.

A dispersion-varying tapered planar waveguide is designed to generate supercontinuum efficiently in the mid-infrared region with low input pulse energy and demonstrates the generation of both broadband and flat near-octave spectrum.

Optimized All-Fiber Supercontinuum Source at 1 . 3 μ m Generated in a Stepwise Dispersion-Decreasing-Fiber Arrangement

In this paper, the generation of a continuous-wave (CW)-pumped supercontinuum (SC) source at 1.3 μm is described. The device makes use of a tunable Yb-doped fiber laser, a cascade of Fiber Bragg

Dispersive-wave-based octave-spanning supercontinuum generation in InGaP membrane waveguides on a silicon substrate.

The coherence properties of the output spectra close to the pump wavelength are measured and it is found that the supercontinuum is highly coherent at least in this wavelength range.

Octave-spanning coherent supercontinuum generation in a silicon nitride waveguide.

We demonstrate the generation of a supercontinuum spanning more than 1.4 octaves in a silicon nitride waveguide using sub-100-fs pulses at 1 μm generated by either a 53-MHz, diode-pumped ytterbium

Optimized All-Fiber Supercontinuum Source at 1.3 $\mu \hbox{m}$ Generated in a Stepwise Dispersion-Decreasing-Fiber Arrangement

In this paper, the generation of a continuous-wave (CW)-pumped supercontinuum (SC) source at 1.3 mum is described. The device makes use of a tunable Yb-doped fiber laser, a cascade of fiber Bragg

Supercontinuum generation in dispersion engineered highly nonlinear (gamma = 10 /W/m) As2S3) chalcogenide planar waveguide.

We demonstrate supercontinuum generation in a highly nonlinear As(2)S(3) chalcogenide planar waveguide which is dispersion engineered to have anomalous dispersion at near-infrared wavelengths. This

A genetic algorithm based approach to fiber design for high coherence and large bandwidth supercontinuum generation.

This hybrid approach combines a genetic algorithm with pulse propagation modeling, but without include it into the GA loop, to allow the efficient design of fibers that are capable of generating highly coherent and large bandwidth SC in the mid-infrared (Mid-IR) spectrum.

Midinfrared supercontinuum generation from 2 to 6 μm in a silicon nanowire

Silicon has attracted great interest as a platform for both linear and nonlinear integrated photonics for over 15 years. While its primary applications have been in the telecom window (near 1.5 μm),