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Advances in Optical Technologies
Volume 2012 (2012), Article ID 484235, 7 pages
http://dx.doi.org/10.1155/2012/484235
Research Article

Laser Performance of 1% at. Yb :  Ceramic

Istituto di Fisica Applicata “N. Carrara”(IFAC), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10 C, Sesto Fiorentino, 50019 Florence, Italy

Received 9 December 2011; Accepted 31 January 2012

Academic Editor: Richard C. Powell

Copyright © 2012 Angela Pirri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We present the performance of a laser prototype based on 1% at. Yb :  ceramic, longitudinally pumped in quasi-CW regime at 968 nm. A slope efficiency of 49% with respect to the absorbed pump power was obtained for laser operation at 1032.5 nm. We studied the effects on the laser oscillation due to the reinjection of the residual pump. The thermal behavior of the sample was investigated by means of numerical simulations, accounting for the different thermal load resulting from spontaneous and laser emission. Finally, we report the measured level of the Amplified Spontaneous Emission, which is found to be less than 0.1 mW.