High-pulse-energy mid-infrared laser source based on optical parametric amplification in ZnGeP_2 | Zendy

Magnus W. Haakestad | Zendy; Gunnar Arisholm | Zendy; E. Lippert | Zendy; Stéphane Nicolas | Zendy; Gunnar Rustad | Zendy; K. Stenersen | Zendy

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High-pulse-energy mid-infrared laser source based on optical parametric amplification in ZnGeP_2

Author(s) -

Magnus W. Haakestad,

Gunnar Arisholm,

E. Lippert,

Stéphane Nicolas,

Gunnar Rustad,

K. Stenersen

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.16.014263

Subject(s) - optics , materials science , laser , infrared , amplifier , wavelength , optical parametric amplifier , pulse duration , laser beam quality , optoelectronics , optical amplifier , regenerative amplification , laser beams , physics , cmos

Nonlinear optical conversion of 1.064 microm pulses from a Q-switched Nd:YAG laser to the mid-infrared is demonstrated. The experimental setup is based on a two-stage master-oscillator/power-amplifier (MOPA) design with a KTiOPO(4) based MOPA in the first stage and a KTiOAsO(4)/ZnGeP(2) based MOPA in the second stage. The setup can be tuned to provide output at 8 microm or in the 3-5 microm wavelength region. We obtain more than 8 mJ at 8 microm, and up to 33 mJ at 3-5 microm. The measured beam quality factors are in the range M(2) =2-4 for both wavelength regions.

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