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Proceedings Paper

Wideband dual-frequency lidar-radar for high-resolution ranging, profilometry, and Doppler measurement
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Paper Abstract

We report on a wideband lidar-radar architecture in which range resolution is independent of pulse duration thanks to the use of a widely tunable intensity-modulated laser combined with a radar-like signal processing. As a source, we use a dual-frequency laser which provides a 100 % depth intensity modulated beam at GHz frequencies. The frequency is electrically adjustable over 1 GHz and is stabilized with a fiber-loop based frequency discriminator. With this setup, we generated a 1 GHz bandwidth stepped-frequency waveform. A range resolution of 22 cm is demonstrated.

Paper Details

Date Published: 2 October 2008
PDF: 12 pages
Proc. SPIE 7114, Electro-Optical Remote Sensing, Photonic Technologies, and Applications II, 71140E (2 October 2008); doi: 10.1117/12.800176
Show Author Affiliations
G. Pillet, Thales Research and Technology (France)
L. Morvan, Thales Research and Technology (France)
D. Dolfi, Thales Research and Technology (France)
J.-P. Huignard, Thales Research and Technology (France)

Published in SPIE Proceedings Vol. 7114:
Electro-Optical Remote Sensing, Photonic Technologies, and Applications II
Gary W. Kamerman; Ove K. Steinvall; Keith L. Lewis; Thomas J. Merlet; Richard C. Hollins, Editor(s)

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