Photodarkening and photobleaching of an ytterbium-doped silica double-clad LMA fiber
Language
en
Article de revue
This item was published in
Optics Express. 2007, vol. 15, n° 4, p. 1606-1611
Optical Society of America - OSA Publishing
English Abstract
We studied the temporal evolution of the photodarkening effect in an Yb-doped silica LMA fiber. The absorption spectra exhibit an increase in absorption in the visible and in the near infrared spectral range when the fiber ...Read more >
We studied the temporal evolution of the photodarkening effect in an Yb-doped silica LMA fiber. The absorption spectra exhibit an increase in absorption in the visible and in the near infrared spectral range when the fiber is exposed to pump light around 980 nm. We show the influence of the photodarkening on the cw lasing properties of the fiber, and demonstrate photobleaching of the same fiber by exposure to UV light at 355 nm. The corresponding absorption spectra and lasing performances are shown and are entirely comparable to those of a new fiberRead less <
English Keywords
Laser fibers
Fibers materials
Silica
Ytterbium
Origin
Hal imported