Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Opt Express. 2008 Jul 7;16(14):10098-109.

Thermal behaviour of ytterbium-doped fluorite crystals under high power pumping.

Author information

  • 1Laboratoire Charles Fabry de l'Institut d'Optique, CNRS, Univ. Paris-Sud,Campus Polytechnique, RD 128,91127 Palaiseau Cedex. justine.boudeile@institutioptique.fr

Abstract

We report an in situ thermal study of Yb-doped fluorite crystals Yb:CaF(2) and Yb:SrF(2) under high power pumping, with or without laser operation. The experiment combines simultaneously thermography and measurement of the thermal aberrations. This setup allows us to measure temperature gradients, thermal lens, and absorption coefficients. From these measurements, we evaluate the thermal conductivity, fractional thermal load, and thermo-optic coefficient. Great differences are observed between the lasing and non lasing regimes. Our measured thermal lenses are greater than what are expected from the thermo-optic parameters found in previous work. Based on this thermal study, we design a laser cavity operating with large output power and TEM(00), leading to better performances for Yb:CaF(2) than Yb:SrF(2).

PMID:
18607417
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk