Applied Physics B

, 83:565

Auger upconversion energy transfer losses and efficient 1.06 μm laser emission in Nd3+ doped fluoroindogallate glass

  • A.S.S. de Camargo
  • C. Jacinto
  • T. Catunda
  • L.A.O. Nunes
Article

DOI: 10.1007/s00340-006-2154-9

Cite this article as:
de Camargo, A., Jacinto, C., Catunda, T. et al. Appl. Phys. B (2006) 83: 565. doi:10.1007/s00340-006-2154-9

Abstract

In addition to efficient continuous wave laser action at 1.06 μm (4F3/24I11/2 transition), with a slope efficiency 30% and 30 mW pump power threshold, this work presents a throughout study of the spectroscopic, and thermo-optical properties of a 2.0 mol % Nd3+ doped fluoroindogallate glass. The characterization of the sample using the pump probe experimental technique indicated the presence of two broad excited state absorption bands from 0.94 to 1.05 μm (4F3/22D3/2, 2G9/2, 4G11/2, 2K15/2) and from 1.16 to 1.42 μm (4F3/24G9/2, 4G7/2, 2K13/2), found not to interfere with the stimulated emission at 1.06 μm, with a peak cross section value σSE = 2.55×10-21 cm2 and a full width at half maximum of 22 nm. Thermal lens measurements were performed to quantify the Auger upconversion parameter (γ=(1.26±0.09)×10-16 cm3/s) and evaluate the thermal loading in the sample in comparison to other commercial glasses.

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • A.S.S. de Camargo
    • 1
  • C. Jacinto
    • 1
  • T. Catunda
    • 1
  • L.A.O. Nunes
    • 1
  1. 1.Instituto de Física de São CarlosUniversidade de São PauloSão CarlosBrazil