We consider how absorption-induced beam depletion alters the index-modulation profile, the diffracted beam profile, and the Bragg selectivity of volume holograms. We derive theoretical equations that consider beam depletion (in the absence of two-beam coupling) and compare these with experimental observations. We also derive a smart scheduling technique whereby such absorption effects can be compensated for during the scheduled recording of multiple holograms. In our smart scheduling approach, during recording the profile of the input signal beam is modified such that during recall its output profile is uniform.
|Number of pages||9|
|Journal||Journal of the Optical Society of America B: Optical Physics|
|State||Published - 1 Jan 1996|
- Beam depletion
- Smart scheduling
- Volume-holographic memory