Optmization of self-trapping and thermal effects in W-shaped optical fibers

In the present, paper, both self-trapping (paraxial propagation) and thermal effects (caustic zones and maximum axial temperature) in W-shaped refractive index fibers are parametrically investigated to minimize the thermal effects and to maximize the self-trapping. Ray optics is employed with a closed form solution for the ray trajectory. Conditions for maximum self-trapping are parametrically investigated. A figure of merit is designed and tested good performance.