Mid-infrared sources based on the soliton self-frequency shift

We have modeled the soliton propagation in an As2Se3 microwire coated with PolyMethyl MethAcrylate (PMMA) with the purpose of optimizing the soliton self-frequency shift (SSFS). We provide the optimal waist diameter and initial soliton energy required to maximize the wavelength shifting from a wavelength of 2.29 um through a 20 cm long microwire. In light of the dynamics of a fundamental soliton, we provide the optimal uniform and nonuniform microwires that maximizes the soliton frequency-shift. Finally, we propose an approach to avoid the dispersive waves emission by which the soliton energy density maintain at the output of the system.

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