Off-axis digital holography with multiplexed volume Bragg gratings

TL;DR

This paper introduces a stable and simple off-axis digital holography method using multiplexed volume Bragg gratings for improved optical imaging.

Contribution

It presents a novel common-path off-axis holography design employing multiplexed volume Bragg gratings, enhancing stability and robustness.

Findings

Enhanced stability and robustness against misalignment

Simplified optical setup

Effective reference wave generation

Abstract

We report on an optical imaging design based on common-path off-axis digital holography, using a multiplexed volume Bragg grating. In the reported method, a reference optical wave is made by deflection and spatial filtering through a volume Bragg grating. This design has several advantages including simplicity, stability and robustness against misalignment.