Open AccessHigh-energy, diode-pumped, nanosecond Yb:YAG MOPA system
Author(s) -
Mathias Siebold,
Joachim Hein,
Christoph Wandt,
Sandro Klingebiel,
Ferenc Krausz,
Stefan Karsch
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.003674
Subject(s) - materials science , optics , nanosecond , laser , diode , amplifier , pulse duration , optoelectronics , diode pumped solid state laser , laser diode , laser pumping , physics , cmos
Diode-pumped nanosecond multi-pass laser amplification to the joule level using an Yb:YAG slab crystal has been demonstrated. A maximum output pulse energy of 2.9 J at an optical-to-optical efficiency of 10% has been achieved. The seed pulses with a pulse duration of 6.4 ns were generated in a Q-switched Yb:YAG laser and amplified up to a pulse energy of 200mJ in a multi-pass booster amplifier. A maximum average output power of 15W at a repetition rate of 10 Hz has been measured. We also present a relay imaging semi-stable cavity for multi-pass amplification and a diode-pumping scheme employing horizontally stacked high-power laser diodes.