DocumentCode
987263
Title
Phase noise considerations in coherent optical FMCW reflectometry
Author
Venkatesh, Shalini ; Sorin, Wayne V.
Author_Institution
Hewlett-Packard Labs., Palo Alto, CA, USA
Volume
11
Issue
10
fYear
1993
fDate
10/1/1993 12:00:00 AM
Firstpage
1694
Lastpage
1700
Abstract
An analysis of coherent optical FMCW is presented. It shows the limitations imposed on measurements of discrete reflections and of Rayleigh backscattering due to phase noise originating in the finite coherence length of the optical source. The dependence of the range for accurate measurements on particular parameters of the optical system is discussed in the general case and for three specific laser sources
Keywords
Rayleigh scattering; backscatter; fibre optic sensors; frequency modulation; light coherence; optical modulation; reflectometry; Rayleigh backscattering; coherent optical FMCW reflectometry; discrete reflections; finite coherence length; frequency modulated continuous wave ranging; laser sources; optical modulation; optical source; optical system; phase noise; phase noise considerations; Acoustic reflection; Backscatter; Length measurement; Noise measurement; Optical noise; Optical reflection; Particle measurements; Phase measurement; Phase noise; Reflectometry;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/50.249912
Filename
249912
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