Interaction of angular plane wave spectra of Bragg and non-Bragg orders in photorefractive lithium niobate

Akash Kota; Ujitha Abeywickrema; Partha Banerjee

doi:10.1117/12.2239202

8 September 2016 Interaction of angular plane wave spectra of Bragg and non-Bragg orders in photorefractive lithium niobate

Akash Kota, Ujitha Abeywickrema, Partha Banerjee

Author Affiliations +

Proceedings Volume 9959, Optical Data Storage 2016; 99590C (2016) https://doi.org/10.1117/12.2239202
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

The exact solutions of the set of nonlinear coupled differential equations pertaining to Bragg and non-Bragg orders for the case of interacting angular spectra in a photorefractive medium are obtained numerically. An iron doped lithium niobate is used as a photorefractive material, and the incident wavelength is taken to be 514 nm. During traditional two-beam coupling within a photorefractive material, many non-Bragg orders may also be generated. For solving the set of coupled equations numerically, interactions between the spectra of two Bragg and two non-Bragg orders are considered. The spatial evolution of the spectra of these diffracted orders hence their spatial profiles are studied numerically for different incident profiles.

Conference Presentation

Citation Download Citation

Akash Kota, Ujitha Abeywickrema, and Partha Banerjee "Interaction of angular plane wave spectra of Bragg and non-Bragg orders in photorefractive lithium niobate", Proc. SPIE 9959, Optical Data Storage 2016, 99590C (8 September 2016); https://doi.org/10.1117/12.2239202

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