High-power laser with Nd:YAG single-crystal fiber grown by the micro-pulling-down technique.
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.
Didierjean
Julien
J
Laboratoire Charles Fabry de l'Institut d'Optique, Centre Universitaire d'Orsay, Orsay, France. julien.didierjean@institutdoptique.fr
Castaing
Marc
M
Balembois
François
F
Georges
Patrick
P
Perrodin
Didier
D
Fourmigué
Jean Marie
JM
Lebbou
Kherreddine
K
Brenier
Alain
A
Tillement
Olivier
O