DocumentCode
1550311
Title
Long period copper-coated grating as an electrically tunable wavelength-selective filter
Author
Duhem, O. ; DaCosta, A. ; Henninot, J.F. ; Douay, M.
Author_Institution
Lab. de Phys. Chimie des Interfaces et Appl., Artois Univ., Lens, France
Volume
35
Issue
12
fYear
1999
fDate
6/10/1999 12:00:00 AM
Firstpage
1014
Lastpage
1016
Abstract
For the first time, the behaviour of long period gratings with a metal coating has been investigated. It is shown that, in the case of a copper coating, couplings become slightly shifted and attenuated. By applying a DC current to the coating, a shift -4 nm is obtained for a resistive power close to 0.5 W. This result suggests that long period gratings are more attractive than Bragg gratings for realising tunable wavelength-selective filters based on the electrical heating of a fibre through a metal coating
Keywords
copper; diffraction gratings; electric heating; metallic thin films; optical communication equipment; optical fibre cladding; optical fibre filters; optical tuning; wavelength division multiplexing; 0.5 W; Bragg gratings; DC current; GdCu; electrical heating; electrically tunable wavelength-selective filter; long period copper-coated grating; long period gratings; metal coating; resistive power; tunable wavelength-selective filters;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19990659
Filename
788079
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