Numerical analysis of thermal effects in a concept of a cryogenically cooled Yb: YAG multislab 10 J/100-Hz laser amplifier

Sawicka-Chyla, Magdalena; Divoký, Martin; Slezák, Ondřej; De Vido, M.; Lucianetti, Antonio; Mocek, Tomáš

doi:https://dx.doi.org/10.1109/JQE.2019.2929962

Number of the records: 1

Numerical analysis of thermal effects in a concept of a cryogenically cooled Yb: YAG multislab 10 J/100-Hz laser amplifier

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SYSNO ASEP	0511129
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Numerical analysis of thermal effects in a concept of a cryogenically cooled Yb: YAG multislab 10 J/100-Hz laser amplifier
Author(s)	Sawicka-Chyla, Magdalena (FZU-D) Divoký, Martin (FZU-D)_{RID, ORCID} Slezák, Ondřej (FZU-D)_{RID, ORCID} De Vido, M. (GB) Lucianetti, Antonio (FZU-D)_{RID, ORCID} Mocek, Tomáš (FZU-D)_{RID, ORCID, SAI}
Number of authors	6
Article number	5100108
Source Title	IEEE Journal of Quantum Electronics - ISSN 0018-9197 Roč. 55, č. 5 (2019), s. 1-8
Number of pages	8 s.
Language	eng - English
Country	US - United States
Keywords	high power lasers ; thermooptical effects ; multislab laser architecture
Subject RIV	BH - Optics, Masers, Lasers
OECD category	Optics (including laser optics and quantum optics)
R&D Projects	EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LO1602 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2015086 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Limited access
Institutional support	FZU-D - RVO:68378271
UT WOS	000478942500001
EID SCOPUS	85069938784
DOI	10.1109/JQE.2019.2929962
Annotation	A thermo-optical design study of different slab geometries for a concept of a cryogenically cooled multislab amplifier operating at 10 J/ 100 Hz is presented. A finite element method (FEM) is used for 3-D analysis of heat distribution, temperature, stress and strain. From this data, birefringence, depolarization losses and wavefront distortion are calculated for a single pass through the amplifier consisting of four slabs. A comparison of different slab shapes shows that a square-shape geometry produces the smallest thermal gradients at the outer sides of the beam region, which results in smaller depolarization losses. Although the design with square-shape slabs is more sensitive to misalignment, our study shows better results compared to the case of circular-shape slabs.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020
Electronic address	https://doi.org/10.1109/jqe.2019.2929962

Number of the records: 1