Degradation-resistant lasing at 980 nm in a Yb/Ce/Al-doped silica fiber
2010 (English)In: Journal of the Optical Society of America. B, Optical physics, ISSN 0740-3224, Vol. 27, no 2, 338-342 p.Article in journal (Refereed) Published
In this work we measure how photodarkening affects the optical efficiency for three different Yb/Al-doped silica fibers operating at 980 nm, one of which is codoped with cerium. A volume Bragg grating is used for linewidth control and added rejection of amplified spontaneous emission. Several hours of degradation-resistant operation is obtained with the Ce-codoped fiber, while for the Yb/Al doped fibers a large drop in efficiency is observed within the first hour of operation. Our results show that Yb/Ce/Al-doped fibers could be excellent candidates for high-power 980 nm fiber laser sources.
Place, publisher, year, edition, pages
2010. Vol. 27, no 2, 338-342 p.
Amplified spontaneous emissions; Co-doped; Doped fiber; Fiber laser source; High-power; Line-width control; Optical efficiency; Photodarkening; Silica fibers; Volume Bragg gratings
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-14163DOI: 10.1364/JOSAB.27.000338ISI: 000274232500023ScopusID: 2-s2.0-76649138580OAI: oai:DiVA.org:kth-14163DiVA: diva2:331178
FunderSwedish Research Council
QC 201101262010-07-212010-07-212015-03-30Bibliographically approved