Bandwidth optimization for the Advanced Volume Holographic Filter

Abstract

The high angular and spectral selectivity of volume holograms have been used in fields like astronomy, spectroscopy, microscopy, and optical communications to perform spatial filtering and wavefront selection. In particular, imaging systems that utilize volume holograms to perform range-based wavefront selection have allowed for the potential to have full 24-hour observational custody of artificial satellites by enabling daytime observations. We previously introduced the Advanced Volume Holographic Filter (AVHF) which demonstrated a significant system bandwidth improvement while maintaining high angular selectivity. Presented here is a theoretical basis for maximizing the bandwidth of the AVHF systems. We experimentally demonstrate an improvement of 40.7-41.4x compared to the un-optimized AVHF systems.

Design and fabrication of volume holographic optical couplers for a range of non-normal incidence angles

“…Since HOEs are holograms whose purpose is to replicate the function of optical components such as mirrors, lenses, etc., they have great potential to find application as functional optical films and coatings, but to do so they must be relatively low cost to produce. Volume HOEs have been developed for a broad range of applications including data storage (1),( 2),(3) optical communication(4), ( 5), ( 6), (7), (8) and others (9), (10) but two of the most active research areas in recent years have been augmented reality displays and solar concentrators.…”