期刊
OPTICS EXPRESS
卷 26, 期 10, 页码 13061-13071出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.26.013061
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- Deutsches Elektronen-Synchrotron (DESY)
- Universitat Hamburg
- Bundesministerium fur Bildung und Forschung (BMBF) [05K16GU2]
- European Regional Development Fund [CZ.02.1.01/0.0/0.0/16_019/0000789]
High-repetition-rate high-power laser systems induce a high average power heat deposition into the gold-coated diffraction gratings. To study the effects of the thermal expansion of in-vacuum Pyrex gratings on the laser properties, we scan the pulse energy and repetition rate of a 200 TW laser system while monitoring the laser wavefront. Through the measured changes in laser divergence and focusability, we define an average power limit below which the in-vacuum compressor can be used with no degradation of the laser focus quality. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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