Low amplitude coherently coupled solitons in photorefractive polymers

Aavishkar Katti

doi:10.1117/12.2585274

12 March 2021 Low amplitude coherently coupled solitons in photorefractive polymers

Aavishkar Katti

Proceedings Volume 11789, Fourth International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2020); 1178909 (2021) https://doi.org/10.1117/12.2585274
Event: Fourth International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2020), 2020, Sanur, Indonesia

Abstract

We theoretically show that low amplitude coherently coupled bright and dark spatial soliton pairs can be realized in biased guest–host photorefractive polymers under steady-state conditions. These soliton pairs are predicted for the carrier beams sharing the same polarization, wavelength, and having a definite mutual phase difference. An exact analytical solution for the bright and dark coherent soliton pair is obtained based on the coupled paraxial Helmholtz equation considering the nonlinearity of the photorefractive polymer. We systematically investigate the functional dependence of the coherently coupled soliton pair’s FWHM with respect to firstly, the mutual phase difference and the secondly, the beam intensity ratio for different external bias fields. We find the existence of bistable states in case of the dark coherently coupled soliton pair.

Citation Download Citation

Aavishkar Katti "Low amplitude coherently coupled solitons in photorefractive polymers", Proc. SPIE 11789, Fourth International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2020), 1178909 (12 March 2021); https://doi.org/10.1117/12.2585274

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