A5042642891- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Laser-Matter Interactions and Applications
- Nonlinear Photonic Systems
- Nonlinear Waves and Solitons
- Fractional Differential Equations Solutions
- Optical Network Technologies
The University of Sydney
2020-2024
The authors demonstrate the existence of optical solitons arising from balance between self-phase modulation and negative, pure, even high-order dispersion using a fiber laser incorporating spectral pulse shaper.
Encouraged by recent experimental breakthroughs, we investigate the types of bright solitons that can exist in presence a Kerr nonlinearity and quadratic, quartic, sextic dispersion examining nature soliton tails. We verify shape full numerical calculations find analytic solutions for some parameters. reveal sensitivity interaction dynamics to particular choice These results provide framework experiments this regime exploring parameter spaces with even higher dimensions.
We theoretically and numerically investigate modulation instability in the presence of even, high-order dispersion, focusing on general trends rather than specific results for a particular dispersion order. show that leads to increasingly poor phase matching between three central waves (i.e. pump ±1 sidebands) higher sideband orders, inhibiting effect four-wave mixing frequency generation. For sufficiently large problem can reduce three-wave system. Our predictions are excellent agreement...
We present a method to generate analytic, stationary solutions generalized nonlinear Schrödinger equations with complicated dispersion profiles. The experimental observation of such in fibre laser was recently reported. Our proceeds systematic fashion and does not require initial guesses. take the form an exponentially converging sum functions, each infinite number discontinuous derivatives at origin, which disappear upon summation. They can be found conveniently using symbolic manipulation...
Abstract We present an approximate, but intuitively appealing theoretical study of the linear propagation optical pulses in media with high-order dispersion. Our analysis, which is fully consistent numerical simulations, based on pulses’ full-width at half maximum and shows that effect dispersion differs significantly from well-understood second order For high orders m , central part pulses, where intensity highest, evolve same way, independent though different rates, a weak dependence...
Although most soliton research has traditionally considered dominant quadratic dispersion, the recent discovery of pure-quartic solitons inspired analysis solutions with large higher orders dispersion. Here we present analytic expressions for families bright at arbitrary dispersion and practical methods to obtain associated relations. These results provide a framework considering order show potential further investigation in systems.
We report experimental time- and phase-resolved measurements of pure-quartic solitons radiating dispersive waves in the presence weak positive sixth-order dispersion. These results imply that a universal radiation mechanism exists across all wave physics.
The idea of fractional derivatives has a long history that dates back centuries. Apart from their intriguing mathematical properties, have been studied widely in physics, for example quantum mechanics and generally systems with nonlocal temporal or spatial interactions. However, systematic experiments rare due to challenges associated the physical implementation. Here we report observation full characterization family optical solitons are governed by nonlinear wave equation Laplacian. This...
We report the experimental discovery of new classes solitons arising from Kerr nonlinearity and negative sixth-; eighth-; tenth-order dispersion. These pulses demonstrate use high-order dispersion for unlocking innovations in nonlinear optics.
Solitons are a unique phenomenon which appear throughout nature, characterised by pulses unchanged in shape as they propagate. Optical solitons particular balance nonlinear effects with dispersion; studies of these have largely focused on quadratic dispersion, for the inverse group velocity is proportional to frequency. Generally speaking, dispersion dominates higher order effects, however shown that exist [1], [2] and can be generated experimentally using fibre laser pulse shaper [3]. These...