High power laser with Nd:YAG single-crystal fiber grown by micro-pulling-down technique

Julien Didierjean (1) , Marc Castaing (1) , François Balembois (1) , Patrick Georges (1) , Didier Perrodin (2) , Jean-Marie Fourmigue (2) , Kheireddine Lebbou (3) , Alain Brenier (3) , Olivier Tillement (3)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
2 Fibercryst
3 LPCML - Laboratoire de Physico-Chimie des Matériaux Luminescents

We present optical characterization and laser results achieved with single-crystal fibers directly grown by the micro-pulling-down technique. We investigate the spectroscopic and optical quality of the fiber, and we present the first laser results. We achieved a cw laser power of 10W at 1064 nm for an incident pump power of 60W at 808 nm and 360 kW peak power for 12 ns pulses at 1 kHz in the Q-switched regime. It is, to the best of our knowledge, the highest laser power ever achieved with directly grown single-crystal fibers

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Julien Didierjean, Marc Castaing, François Balembois, Patrick Georges, Didier Perrodin, et al.. High power laser with Nd:YAG single-crystal fiber grown by micro-pulling-down technique. Optics Letters, 2006, 31 (23), pp.3468-3470. ⟨10.1364/ol.31.003468⟩. ⟨hal-00700667⟩