Simulation of femtosecond pulse propagation in sub-micron diameter tapered fibers

@article{Kolesik2004SimulationOF,
  title={Simulation of femtosecond pulse propagation in sub-micron diameter tapered fibers},
  author={M. Kolesik and Ewan M. Wright and Jerome V. Moloney},
  journal={Applied Physics B},
  year={2004},
  volume={79},
  pages={293-300}
}
Ultrashort pulse propagation and supercontinuum generation in tapered and microstructured optical fibers is usually simulated using the corrected nonlinear Schrödinger equation. One of the underlying approximations is the use of a wavelength-independent effective area or, equivalently, of a constant nonlinear coefficient γ. In very thin waveguide structures with strong light confinement, including silica wires and sub-micron tapered fibers and some microstructured fibers, the validity of such… 
Supercontinuum Spectrum Generation in Tapered Fiber Using Femtosecond Laser Pulses
We present an extended nonlinear Schrodinger equation model that involves the dispersion coefficient and effective core area varying along the transition length of tapered fiber. The supercontinuum
Dispersive pulse compression in hollow-core photonic bandgap fibers
Compression of linearly chirped picosecond pulses in hollow-core photonic bandgap fibers is investigated numerically. The modal properties of the fibers are modeled using the finite-element
A full vectorial model for pulse propagation in emerging waveguides with subwavelength structures part I: Kerr nonlinearity.
TLDR
A generalised full vectorial model of nonlinear pulse propagation is reported and it is demonstrated that, unlike the standard pulse propagation formulation, the z-component of guided modes plays a key role for these new structures, and results in generalised definitions of the nonlinear coefficient gamma, Aeff, and mode orthognality.
Supercontinuum generation and nonlinear pulse propagation in photonic crystal fiber: influence of the frequency-dependent effective mode area
Numerical simulations are used to study the effect of the frequency dependence of the effective mode area in photonic crystal fiber on supercontinuum generation. We quantify how the frequency
Nonlinear pulse propagation and supercontinuum generation in photonic nanowires: experiment and simulation
We investigate theoretically and experimentally the process of supercontinuum generated in sub-wavelength waveguides. We observe experimentally that supercontinuum generated in these photonic
Supercontinuum generation and nonlinear pulse propagation in photonic crystal fiber: influence of the frequency-dependent effective mode area
In this paper, we describe how the frequency-dependence of the effective area can be conveniently included in NEE approaches to model pulse propagation in PCF through a modified optical shock term.
Supercontinuum generation in photonic crystal fiber
A topical review of numerical and experimental studies of supercontinuum generation in photonic crystal fiber is presented over the full range of experimentally reported parameters, from the
Modeling of nonlinear propagation in fiber tapers
A full-vectorial nonlinear propagation equation for short pulses in tapered optical fibers is developed. Specific emphasis is placed on the importance of the field normalization convention for the
Continuum Generation in Higher-Order Modes of Photonic Crystal Fibers
  • J. Lægsgaard
  • Physics
    2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
  • 2019
Low-noise supercontinuum (SC) generation in photonic crystal fibers (PCFs) can be achieved by using pump pulses of femtosecond (fs) duration and low soliton numbers [1]. The small cores sizes needed
Continuum Generation in Higher-Order Modes of Photonic Crystal Fibers
Low-noise supercontinuum (SC) generation in photonic crystal fibers (PCFs) can be achieved by using pump pulses of femtosecond (fs) duration and low soliton numbers [1]. The small cores sizes needed
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 27 REFERENCES
Characteristics of supercontinuum generationin tapered fibers using femtosecond laser pulses
Drawing single mode fibers over a flame generates tapered fibers with waist diameters of approximately 1–3 micrometers and waist lengths of up to 90 mm. We demonstrate how the profile of such tapered
Measurement of the intensity and phase of supercontinuum from an 8-mm-long microstructure fiber
We generate, measure, and model broadband continuum generation from a relatively short 8-mm-long microstructure fiber pumped by 40-fs pulses at 816 nm in the near infrared. Cross-correlation
Four-wave mixing instabilities in photonic-crystal and tapered fibers.
TLDR
The four-wave mixing theory developed here is based on the full wave equation, which allows rigorous study of the unstable bands even when the detunings are of the order of the pump frequency itself.
Optimization of supercontinuum generation in photonic crystal fibers for pulse compression
TLDR
It is found that the group delay and group-delay dispersion of the supercontinum are sensitive to the input pulse peak power after further propagation at the third stage.
Soliton self-frequency shift in a short tapered air-silica microstructure fiber.
We report a soliton self-frequency shift of more than 20% of the optical frequency in a tapered air–silica microstructure fiber that exhibits a widely flattened large anomalous dispersion in the near
Supercontinuum generation in air–silica microstructured fibers with nanosecond and femtosecond pulse pumping
We study the generation of supercontinua in air–silica microstructured fibers by both nanosecond and femtosecond pulse excitation. In the nanosecond experiments, a 300-nm broadband visible continuum
Coherence properties of supercontinuum spectra generated in photonic crystal and tapered optical fibers.
TLDR
The coherence of the supercontinuum is shown to depend strongly on the input pulse's duration and wavelength, and optimal conditions for the generation of coherent supercontinua are discussed.
Noise amplification during supercontinuum generation in microstructure fiber.
TLDR
This work quantifies the noise amplification factor and its dependence on the supercontinuum wavelength and on the energy and duration of the input pulse.
Nonlinear propagation and continuum generation in microstructured optical fibers.
TLDR
It is found that higher-order dispersion primarily determines the shape and width of the generated spectrum and that the fine spectral substructure exhibits extreme sensitivity to the initial pulse energy.
Supercontinuum generation in tapered fibers
Supercontinuum light with a spectrum more than two octaves broad (370–1545 nm at the 20-dB level) was generated in a standard telecommunications fiber by femtosecond pulses from an unamplified
...
1
2
3
...