Summary
The extreme light infrastructure (ELI) will be a new scientific European infrastructure devoted to scientific research in lasers field, dedicated to the investigation and applications of laser-matter interaction at the highest intensity level (more than 6 orders of magnitude higher than today's laser intensity). The ELI project, a collaboration of 13 European countries, will comprise three branches: Ultra High Field Science that will explore laser-matter interaction, attosecond Laser Science designed to conduct temporal investigation of electron dynamics in atoms, molecules, plasmas and solids at attosecond scale, High Energy Beam Science devoted to the development and usage of dedicated beam lines with ultra short pulses of high energy radiation. Using DPSSL (Diode Pumped Solid State Lasers) as pumping technology, PW-class lasers with enhanced repetition rates are developed. Each of the Yb YaG amplifiers will be diode-pumped at a wavelength of 940 nm. This is a prerequisite for achieving high repetition rates (light amplification duration 1 millisecond and repetition rate 10 Hz). The efficiency of DPSSL is inversely proportional to the temperature, for this reason the slab amplifier have to be cooled at a temperature in the range of 100-170K with a heat flux of 1 MW/m-2. This paper describes the thermo-mechanical analysis for the design of the amplification laser head, presents a preliminary proposal for the required cryogenic cooling system and finally outlines the gain of cryogenic operation for the efficiency of high pulsed laser.
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Details
- Original title: Cryogenic cooling for high power laser amplifiers.
- Record ID : 30001556
- Languages: English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Publication date: 2011/08/21
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Indexing
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COMPACT CADMIUM-SELENIUM LASER WITH MICROMINIAT...
- Author(s) : VALK B., OLSON D. J., SALOUR M. M.
- Date : 1986
- Languages : English
- Source: Rev. sci. Instrum. - vol. 57 - n. 12
View record
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Techniques de réfrigération cryogénique pour le...
- Author(s) : GANDIT P.
- Date : 2014/09
- Languages : French
- Source: Revue générale du Froid & du Conditionnement d'air - vol. 103 - n. 1146
View record
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INSTRUMENT/PROCEDURE WHICH PREPARES A FRESH SUR...
- Author(s) : GRAHAM D. J., VICTOR R., WISE C.
- Date : 1987
- Languages : English
- Source: Rev. sci. Instrum. - vol. 58 - n. 10
View record
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A HELIUM REFRIGERATOR WITH LOW TEMPERATURE CENT...
- Author(s) : TOGO S.
- Date : 1985
- Languages : Japanese
- Source: Cryogenics/ Cryog. Eng. - vol. 20 - n. 4
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LOW TEMPERATURE CENTRIFUGAL HELIUM COMPRESSORS.
- Author(s) : OKANO M.
- Date : 1985
- Languages : Japanese
- Source: Cryogenics/ Cryog. Eng. - vol. 20 - n. 4
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