title: High-power laser with Nd:YAG single-crystal fiber grown by the micro-pulling-down technique.
abstract: 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 10 W at 1064 nm for an incident pump power of 60 W 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.
authors.affiliation: Laboratoire Charles Fabry de l'Institut d'Optique, Centre Universitaire d'Orsay, Orsay, France. julien.didierjean@institutdoptique.fr
authors.forename: Julien
authors.initials: J
authors.lastname: Didierjean
authors.forename: Marc
authors.initials: M
authors.lastname: Castaing
authors.forename: François
authors.initials: F
authors.lastname: Balembois
authors.forename: Patrick
authors.initials: P
authors.lastname: Georges
authors.forename: Didier
authors.initials: D
authors.lastname: Perrodin
authors.forename: Jean Marie
authors.initials: JM
authors.lastname: Fourmigué
authors.forename: Kherreddine
authors.initials: K
authors.lastname: Lebbou
authors.forename: Alain
authors.initials: A
authors.lastname: Brenier
authors.forename: Olivier
authors.initials: O
authors.lastname: Tillement