Loading...
research article
Stress changes in H2-loaded SMF optical fibers induced by cw-Ar+ 244 nm irradiation
Bragg gratings were inscribed in H2-loaded SMF-28e optical fibers and measured for axial stress changes for various exposure doses. Mean refractive index changes as high as 7.5 × 10-3 were observed under cw-244 nm irradiation of 143 W/cm2. Bragg grating reflectivity >99% was achieved for 0.7 mm long (1/e2) gratings. Axial stress measurements realized before and after UV exposure of the fibers, show two competing dose-dependent photosensitivity mechanisms: Negative stress changes at the early stages of exposure and positive stress changes for high exposures.
Use this identifier to reference this record
Type
research article
Web of Science ID
WOS:000310647500004
Authors
Publication date
2012
Publisher
Published in
Volume
2
Issue
11
Start page
1490
End page
1495
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 12, 2012