High-energy, diode-pumped, nanosecond Yb:YAG MOPA system.
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.
Siebold
M
M
Max-Planck-Institute for Quantum Optics (MPQ), Hans-Kopfermann-Str. 1, 85748 Garching, Germany. mathias.siebold@gmx.de
Hein
J
J
Wandt
C
C
Klingebiel
S
S
Krausz
F
F
Karsch
S
S
D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D054023:Lasers, Semiconductor; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D015018:Ytterbium / Q000737:chemistry*
D015018:Ytterbium