Design and implementation of a long range FMCW lidar system in combination with a telescopic FMCW digital holographic imaging system

Zachery Lakin; Corey Pearson; Matthew Goodman; Cole Hammond; Ector Ayala; R. Krishna Mohan; Wm. Randall Babbitt

doi:10.1117/12.3002803

13 March 2024 Design and implementation of a long range FMCW lidar system in combination with a telescopic FMCW digital holographic imaging system

Zachery Lakin, Corey Pearson, Matthew Goodman, Cole Hammond, Ector Ayala, R. Krishna Mohan, Wm. Randall Babbitt

Author Affiliations +

Proceedings Volume PC12910, Practical Holography XXXVIII: Displays, Materials, and Applications; PC1291008 (2024) https://doi.org/10.1117/12.3002803
Event: SPIE OPTO, 2024, San Francisco, California, United States

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Abstract

This study demonstrates a coherent frequency modulated continuous wave (FMCW) scanning lidar system coupled with range-selective coherent FMCW digital holography (DH), yielding broad field-of-view point cloud images and high-resolution holographic images of objects at selected ranges. The integration of DH into a Cassegrain telescope enables long-range phase-sensitive imaging, improving upon traditional DH systems. A chirped frequency modulation technique is used to capture holograms at specified ranges, with a current range resolution of 7 cm. The research details the technicalities, challenges, and future directions of this approach, which marks a substantial advancement in coherent 3D imaging and sensing technologies.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Zachery Lakin, Corey Pearson, Matthew Goodman, Cole Hammond, Ector Ayala, R. Krishna Mohan, and Wm. Randall Babbitt "Design and implementation of a long range FMCW lidar system in combination with a telescopic FMCW digital holographic imaging system", Proc. SPIE PC12910, Practical Holography XXXVIII: Displays, Materials, and Applications, PC1291008 (13 March 2024); https://doi.org/10.1117/12.3002803

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