DocumentCode
1366528
Title
Analysis of distributed feedback lasers using optical low-coherence reflectometry
Author
Wiedmann, Uwe ; Gallion, Phillipe ; Jaouën, Yves ; Chabran, Claude
Author_Institution
Dept. Commun., CNRS, Paris, France
Volume
16
Issue
5
fYear
1998
fDate
5/1/1998 12:00:00 AM
Firstpage
864
Lastpage
869
Abstract
The analysis of distributed feedback (DFB) lasers by optical low-coherence reflectometry (OLCR) shows the appearance of additional more or less periodic minima in the reflectogram. These do not reflect local minima of the reflectance, but are rather due to multipath interference effects caused by spectral filtering of the white light source by the laser under test. It is shown that the coupling coefficient of the laser can be determined from the period of these minima
Keywords
diffraction gratings; distributed feedback lasers; light interferometry; measurement theory; optical testing; reflectivity; DFB lasers; coupling coefficient; distributed feedback lasers; laser testing; laser under test; multipath interference effects; optical low-coherence reflectometry; periodic minima; reflectogram; spectral filtering; white light source; Distributed feedback devices; Filtering; Interference; Laser feedback; Light sources; Optical feedback; Optical filters; Reflectivity; Reflectometry; Testing;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/50.669020
Filename
669020
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