Article

Directly diode-pumped high-energy Ho:YAG oscillator.

LISA Laser Products OHG, Katlenburg-Lindau, Germany. samir.lamrini@ruhr‐uni‐bochum.de
Optics Letters (impact factor: 3.4). 02/2012; 37(4):515-7. pp.515-7
Source: PubMed

ABSTRACT We report on the high-energy laser operation of an Ho:YAG oscillator resonantly pumped by a GaSb-based laser diode stack at 1.9 μm. The output energy was extracted from a compact plano-concave acousto-optically Q-switched resonator optimized for low repetition rates. Operating at 100 Hz, pulse energies exceeding 30 mJ at a wavelength of 2.09 μm were obtained. The corresponding pulse duration at the highest pump power was 100 ns, leading to a maximum peak power above 300 kW. Different pulse repetition rates and output coupling transmissions of the Ho:YAG resonator were studied. In addition, intracavity laser-induced damage threshold measurements are discussed.

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Keywords

compact plano-concave acousto-optically Q-switched resonator optimized
 
corresponding pulse duration
 
Different pulse repetition rates
 
GaSb-based laser diode stack
 
highest pump power
 
intracavity laser-induced damage threshold measurements
 
low repetition rates
 
output coupling transmissions
 
output energy
 
pulse energies
 

Samir Lamrini