The Influence Of Wavefront Of The Writing Beams On Angle Bragg Selectivity In Volume Holographic Storage

Angular selectivity of volume grating limits the capacity of holographic 3-dimensional storage. In this work, we investigated experimentally the influence of wavefront shapes of the writing beams on the angular selectivity of thick grating in a LiNbO3 crystal. The experimental results showed that longer wavefront curvature results in more critical Bragg angular selectivity.