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9 May 2019 Temporal diagnostics for kJ class laser using object-image-grating self-tiling compressor
Štěpán Vyhlídka, Pavel Trojek, Daniel Kramer, Davorin Peceli, František Batysta, Jan Bartoníček, Jan Hubáček, Ted Borger, Roman Antipenkov, Erhard Gaul, Todd Ditmire, Bedřich Rus
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Proceedings Volume 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies; 1103409 (2019) https://doi.org/10.1117/12.2524484
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic
Abstract
The limited aperture and damage threshold of the compressor gratings remains one of the bottlenecks in reaching higher peak powers for the current state-of-the-art laser systems. Object-image-grating self-tiling method provides a way how to double the effective aperture of compressor gratings by phasing them with perpendicularly positioned mirrors. This method is planned to be used in the main compressor for the L4 beamline in ELI Beamlines. A subaperture version of the main compressor was designed to test the feasibility of the objectimage- grating self-tiling method and to measure the temporal profile of the pulse throughout the amplification stages during the operation. The subaperture compressor was successfully implemented and temporal profile of the amplified pulse close to its transform limit was retrieved. The grating-mirror alignment was secured through the online measurement using an in-house developed Fizeau interferometer.
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Štěpán Vyhlídka, Pavel Trojek, Daniel Kramer, Davorin Peceli, František Batysta, Jan Bartoníček, Jan Hubáček, Ted Borger, Roman Antipenkov, Erhard Gaul, Todd Ditmire, and Bedřich Rus "Temporal diagnostics for kJ class laser using object-image-grating self-tiling compressor", Proc. SPIE 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies, 1103409 (9 May 2019); https://doi.org/10.1117/12.2524484
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KEYWORDS
Diffraction gratings
Diagnostics
Fizeau interferometers
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