Document Type

Article

Publication Date

2023

Abstract

Using a pulsed configuration, a digital-holographic system is setup in the off-axis image plane recording geometry, and spectral broadening via pseudo-random bit sequence is used to degrade the temporal coherence of the master-oscillator laser. The associated effects on the signal-to-noise ratio are then measured in terms of the ambiguity and coherence efficiencies. It is found that the ambiguity efficiency, which is a function of signal-reference pulse overlap, is not affected by the effects of spectral broadening. The coherence efficiency, on the other hand, is affected. As a result, the coherence efficiency, which is a function of effective fringe visibility, is shown to be a valid performance metric for pulsed-source digital holography.

Comments

The version of this article supplied at AFIT Scholar is the open access author's version, sourced from IEEE.

The article is shared in accordance with the guidance posted at Sherpa. https://beta.sherpa.ac.uk/publication/3562, [Accepted version, option C]

This article is published by IEEE and licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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The citation below will be updated when the article is included in an issue of IEEE Journal of Quantum Electronics.

DOI

10.1109/JQE.2023.3248176

Source Publication

IEEE Journal of Quantum Electronics

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