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 10W at 1064nm for an incident pump power of 60W at 808nm and 360kW peak power for 12ns pulses at 1kHz 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.

© 2006 Optical Society of America

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