Format

Send to

Choose Destination
See comment in PubMed Commons below
Opt Express. 2013 Mar 25;21(6):6681-8. doi: 10.1364/OE.21.006681.

Experimental evidence for the formation of divalent ytterbium in the photodarkening process of Yb-doped fiber lasers.

Author information

1
Mid Sweden University, S-851 70 Sundsvall, Sweden.

Abstract

In this work we present experimental evidence that the valence instability of the ytterbium ion play a key role for the observed photodarkening mechanism in Yb-doped fiber lasers. Luminescence and excitation spectroscopy performed on UV irradiated Yb/Al doped silica glass preforms and near-infrared diode pumped photodarkened fibers show a concentration increase of Yb(2+) ions. A concentration decrease in Yb(3+) could also be observed for the UV irradiated preform. The findings contribute to an increased understanding of the kinetic processes related to photodarkening in Yb-doped high power fiber lasers.

PMID:
23546049
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments

    Supplemental Content

    Loading ...
    Support Center