We analyze vectorial wave mixing in a photorefractive crystal of cubic symmetry in different geometries of beam interactions—reflection, transmission, and orthogonal. It is shown that orthogonal geometry in contrast with others supports an efficient phase demodulation of a depolarized object wave in linear mode without using any polarization-filtering elements. As a result adaptive interferometers based on the orthogonal geometry can provide a higher signal-to-noise ratio due to lower noise and lower optical losses.
© 2010 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: October 2, 2009
Revised Manuscript: November 25, 2009
Manuscript Accepted: December 14, 2009
Published: January 22, 2010
Roman V. Romashko, Salvatore Di Girolamo, Yuri N. Kulchin, and Alexei A. Kamshilin, "Photorefractive vectorial wave mixing in different geometries," J. Opt. Soc. Am. B 27, 311-317 (2010)