NDLI: Potential use of near, mid and far infrared laser diodes in automotive LIDAR applications

Content Provider	IEEE Xplore Digital Library
Author	Samman, A. Rimai, L. McBride, J.R. Carter, R.O. Weber, W.H. Gmachl, C. Capasso, F. Hutchinson, A.L. Sivco, D.L. Cho, A.Y.
Copyright Year	2000
Description	Author affiliation: Ford Res. Lab., Dearborn, MI, USA (Samman, A.)
Abstract	Laser infrared detection and ranging (LIDAR) may be used in on-board automotive applications for monitoring the distance to objects approaching the host vehicle and their relative velocities. The low total cost of equipping cars with LIDAR systems has motivated their development for the automotive market. We conducted an experimental study to assess the ability to detect painted car body panels and various reflectors with 850, 910, 1560, 5600 and 8100 nm LIDAR transceivers. Specular reflection from such targets was high at all wavelengths. However at 5.6 and 8.1 /spl mu/m, diffuse reflection was not detectable at meaningful distances due to (1) the high absorption of the clear paint coating of body panels and the plastic material used for making reflectors, and (2) the low detectivity achievable at such wavelengths. At 850 to 1560 nm, these targets behaved as in the visible range of the spectrum with high returns from reflectors and much weaker diffuse returns from painted panels. Nonetheless, the weak diffuse reflections were readily detectable at 850 to 1560 nm. As concern with eye safety favors wavelengths above 1.4 /spl mu/m, a 1.6 /spl mu/m LIDAR wavelength is suggested as optimum.
Starting Page	2084
Ending Page	2089
File Size	512402
Page Count	6
File Format	PDF
ISBN	0780365070
ISSN	10903038
DOI	10.1109/VETECF.2000.883239
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Diode lasers Laser radar Optical reflection Infrared detectors Infrared surveillance Object detection Vehicle detection Automotive applications Monitoring Vehicles
Content Type	Text
Resource Type	Article

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