Digital-holography efficiency measurements using a heterodyne-pulsed configuration

Steven A. Owens; Mark F. Spencer; Glen P. Perram

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Digital-holography efficiency measurements using a heterodyne-pulsed configuration

机译：Digital-holography efficiency measurements using a heterodyne-pulsed configuration

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摘要

A digital-holography (DH) system is created in a heterodyne-pulsed configuration, meaning that the reference and signal pulses are nondeterministically correlated in time. Using the off-axis image plane recording geometry, two performance metrics are measured: (1) the total-system efficiency and (2) the ambiguity efficiency. These metrics are compared against the same measured efficiencies for a DH system in a homodyne-pulsed configuration, which uses deterministically correlated reference and signal pulses. The total-system efficiency of both systems is found to be consistent with one another, showing that no new component efficiencies are required when switching from a homodyne- to a heterodyne-pulsed configuration. Additionally, an instantaneous phase modulation model is used to characterize system performance in terms of nonideal pulse overlap. Such a model validates the use of the ambiguity efficiency for future efforts.

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来源
《Optical Engineering》 |2022年第12期|123101-1-123101-13|共13页
作者
Steven A. Owens; Mark F. Spencer; Glen P. Perram;
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作者单位

Air Force Institute of Technology (United States);

Air Force Research Lab. (United States);

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
关键词
Pulse signals; Phase modulation; Cameras; Laser sources; Signal to noise ratio; Digital holography; Imaging systems;

Digital-holography efficiency measurements using a heterodyne-pulsed configuration

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