1 January 2001 Unusual techniques for absolute distance measurement
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Optical Engineering, 40(1), (2001). doi:10.1117/1.1330702
Abstract
I describe four unusual laser systems for absolute measures of linear distance. All employ the familiar techniques of multiple wavelengths, chirped wavelength, optical feedback and intensity modulation, but in somewhat unfamiliar architectures. These examples serve to illustrate the breadth of solutions to this important problem.
Peter J. de Groot, "Unusual techniques for absolute distance measurement," Optical Engineering 40(1), (1 January 2001). http://dx.doi.org/10.1117/1.1330702
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KEYWORDS
Modulation

Distance measurement

Semiconductor lasers

Interferometry

LIDAR

Diodes

Signal detection

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