Experimental study on compression of 216-W laser pulses below 2 ps at 1030 nm with chirped volume Bragg grating

We report on the characterization of a high-power, chirped volume Bragg grating (CVBG) pulse compressor. It includes measurements of the CVBG’s diffraction efficiency, beam profile, beam quality ( M 2 parameter), pulse spectrum, the CVBG’s temperature, and the thermal lens. These parameters were mon...

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Bibliographic Details
Published in:Applied optics (2004) 2020-09, Vol.59 (26), p.7938
Main Authors: Štěpánková, Denisa, Mužík, Jiří, Novák, Ondřej, Roškot, Lukáš, Smirnov, Vadim, Glebov, Leonid, Jelínek, Michal, Smrž, Martin, Lucianetti, Antonio, Mocek, Tomáš
Format: Article
Language:English
Subjects:
Bragg gratings
Diffraction efficiency
Lasers
Parameters
Pulse compression
Pulse duration
Thermal lensing
YAG lasers
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Summary:We report on the characterization of a high-power, chirped volume Bragg grating (CVBG) pulse compressor. It includes measurements of the CVBG’s diffraction efficiency, beam profile, beam quality ( M 2 parameter), pulse spectrum, the CVBG’s temperature, and the thermal lens. These parameters were monitored for a wide range of input laser powers and with different clamping forces applied on the CVBG. This analysis was performed with a CPA-based Yb:YAG thin-disk laser system operating at a wavelength of 1030 nm, a 92 kHz repetition rate, 2 ps pulse duration, and an average output power after compression of 216 W (270 W uncompressed), which is, to the best of our knowledge, the highest value reported to date using this pulse compression technique.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.400415