We developed and implemented an adaptive interferometer based on a dynamic hologram formed in a gyrotropic photorefractive crystal of cubic bismuth silicate Bi12SiO20 using an orthogonal two‑wave interaction geometry. Experimental studies of the interferometer were carried out, confirming the authors previously developed physical and mathematical model of two‑wave vector interaction in a gyrotropic photorefractive crystal. Geometric parameters of a photorefractive crystal that enable polarization-independent operation of an interferometer were determined and experimentally validated. This configuration ensures the interferometer’s output signal is insensitive to the polarization state of the object wave.
Bezruk et al. (Wed,) studied this question.