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- W1998144405 abstract "Critical power, nonlinear guided stationary mode and transient dynamics in nonlinear waveguides are studiedanalytically. Under Gaussian mode approximation, critical power for nonlinear self-focus is derived analytically and isfound to be independent of waveguide parameters. Nonlinear guided stationary mode is found to be the stable solution ofnonlinear waveguide below critical power for nonlinear self-focus and has a reduced mode size dependent on opticalpower and V value of the waveguide. Equation governing transient dynamics of the nonlinear waveguide modes is alsofound. Transient dynamics scale with Rayleigh Raleigh range similar to that in bulk media. Mode is found to evolveadiabatically towards the local stationary mode in a fiber below self-focus limit. Mode will collapse to a singular point ata self-focus distance at and above critical power. Larger V value increases transient and self-focus distance. The self-focusdistance becomes proportional to square root of optical power at higher power level and independent of V value. Bintegral are calculated for various amplifiers considering the impact of gradual collapse of beam size along the amplifier." @default.
- W1998144405 created "2016-06-24" @default.
- W1998144405 creator A5053396495 @default.
- W1998144405 date "2008-02-07" @default.
- W1998144405 modified "2023-09-23" @default.
- W1998144405 title "Analytical solutions for nonlinear waveguide equation under Gaussian mode approximation" @default.
- W1998144405 doi "https://doi.org/10.1117/12.774052" @default.
- W1998144405 hasPublicationYear "2008" @default.
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