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Eye-Safe LidarLaser infrared radar (lidar) undergoing development harmless to human eyes, consists almost entirely of solid-state components, and offers high range resolution. Operates at wavelength of about 2 micrometers. If radiation from such device strikes eye, almost completely absorbed by cornea without causing damage, even if aimed directly at eye. Continuous-wave light from laser oscillator amplified and modulated for transmission from telescope. Small portion of output of oscillator fed to single-mode fiber coupler, where mixed with return pulses. Intended for remote Doppler measurements of winds and differential-absorption measurements of concentrations of gases in atmosphere.
Document ID
19890000446
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Byer, Robert L.
(Stanford Univ.)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 9
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-17464
Accession Number
89B10446
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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