Generating supercontinuum in dispersion varying As2S3 waveguides

Lucas Railing; Sunil Thapa; Xiang Zhang; Niloy Dutta

doi:10.1117/12.2518245

14 May 2019 Generating supercontinuum in dispersion varying As₂S₃ waveguides

Lucas Railing, Sunil Thapa, Xiang Zhang, Niloy Dutta

Proceedings Volume 11000, Fiber Optic Sensors and Applications XVI; 110000A (2019) https://doi.org/10.1117/12.2518245
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

We simulate supercontinuum generation for various shapes of a dispersion varying As₂S₃ waveguides on MgF₂ substrate with air cladding. The supercontinuum generation is simulated for pulses of 2000 W peak power and 50 fs pulse width centered at 1.55 μm wavelength. For a uniform waveguide the generated spectrum is considerably narrower than that for a non-uniform waveguide. This is because the non-uniform waveguide allows a continuous phase matching of the generated waves through nonlinear interaction. We have demonstrated that a high coefficient of nonlinear refractive index is necessary for generating supercontinuum with large bandwidths. Larger supercontinuum bandwidth is predicted for waveguides with increasing As₂S₃ thickness along the propagation direction.

Conference Presentation

Citation Download Citation

Lucas Railing, Sunil Thapa, Xiang Zhang, and Niloy Dutta "Generating supercontinuum in dispersion varying As₂S₃ waveguides", Proc. SPIE 11000, Fiber Optic Sensors and Applications XVI, 110000A (14 May 2019); https://doi.org/10.1117/12.2518245

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