DocumentCode :
772422
Title :
High resolution laser LIDAR utilising two-section distributed feedback semiconductor laser as a coherent source
Author :
Burrows, Ellsworth C ; Liou, K.-Y.
Author_Institution :
AT&T Bell Lab., Crawford Hill Lab., Holmdel, NJ, USA
Volume :
26
Issue :
9
fYear :
1990
fDate :
4/26/1990 12:00:00 AM
Firstpage :
577
Lastpage :
579
Abstract :
An air-spaced coherent LIDAR (light detection and ranging) employing a two-section distributed feedback (DFB) injection laser is demonstrated. The relative distance of a mirror target was detected with 0.1 mu m resolution. The absolute distance of a diffuse target was measured with 1 cm accuracy. These results indicate that semiconductor lasers developed for communication systems may be useful for sensing applications such as robotic vision, surface profiling and automated fabrication.
Keywords :
distributed feedback lasers; measurement by laser beam; optical radar; semiconductor junction lasers; coherent source; distributed feedback; high-resolution optical radar; laser LIDAR; light detection; ranging; semiconductor laser; two section DFB injection laser;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19900378
Filename :
48764
Link To Document :
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