Self-induced diffraction patterns in nonlinear Fabry-Perot interferometer on lithium niobate

23rd International Laser Physics Workshop

Shandarov, V.^1 ; Perin, A.^1 ; Ryabchenok, V.^1

Tomsk State University of Control Systems and Radioelectronics, Lenin Prospect 40, Tomsk

634050, Russia^1

关键词: Diffractive element;    Far field diffraction pattern;    Multiple reflections;    Nonlinear Fabry-Perot interferometers;    Optical interference pattern;    Photorefractive response;    Refractive index changes;    Self-action of lights;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/594/1/012036/pdf
DOI  :  10.1088/1742-6596/594/1/012036

来源: IOP

【 摘 要 】

The effects of self-action of light fields within Fabry-Perot interferometers based on photorefractive lithium niobate plates both, of X- and Z- cuts are experimentally investigated. Formation of one-dimensional practically regular diffractive elements within the interferometers with slightly non-parallel input and output surfaces has been demonstrated at laser light wavelength of 532 nm. It has been found that these diffractive elements are formed due to the photorefractive response of the crystal to the steady-state optical interference patterns appeared within the interferometer at multiple reflections of light beam. From the Raman-Nath far field diffraction patterns the ordinary refractive index change within the interferometer on Z-cut crystal has been estimated.