Generation of nanosecond laser pulses at a 2.2-MHz repetition rate by a cw diode-pumped passively Q-switched Nd{sup 3+}:YVO{sub 4} laser

We report a new configuration of a high-repetition rate nanosecond laser based on a semiconductor saturable absorber mirror (SESAM). The SESAM is conventional technical solution for passive mode-locking at 1064 nm and simultaneously used as a highly reflecting mirror and a saturable absorber in a hi...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2011-09, Vol.41 (9)
Main Authors: Nghia, Nguyen T, Hao, Nguyen V, Orlovich, Valentin A, Hung, Nguyen D
Format: Article
Language:English
Subjects:
BEAMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONFIGURATION
CONTROL
LASER RADIATION
MIRRORS
MODE LOCKING
NEODYMIUM ADDITIONS
PULSES
PUMPING
REFLECTION
RESONATORS
SEMICONDUCTOR MATERIALS
VANADATES
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Summary:We report a new configuration of a high-repetition rate nanosecond laser based on a semiconductor saturable absorber mirror (SESAM). The SESAM is conventional technical solution for passive mode-locking at 1064 nm and simultaneously used as a highly reflecting mirror and a saturable absorber in a high-Q and short cavity of a cw diode-end-pumped a-cut Nd{sup 3+}:YVO{sub 4} laser. Two laser beams are coupled out from the cavity using an intracavity low-reflection thin splitter. The laser characteristics are investigated as functions of pump and resonator parameters. Using a 1.8-W cw pump laser diode at 808 nm, the passively Q-switched SESAMbased laser generates 22-ns pulses with an average power of 275 mW at a pulse repetition rate of 2250 kHz.
ISSN:1063-7818
DOI:10.1070/QE2011V041N09ABEH014619