Active Alignment Control System For Thin Disk Regenerative Amplifier
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F25%3A00012872" target="_blank" >RIV/46747885:24220/25:00012872 - isvavai.cz</a>
Result on the web
<a href="https://pubs.aip.org/aip/rsi/article/96/1/013003/3329652/Active-alignment-control-system-for-thin-disk" target="_blank" >https://pubs.aip.org/aip/rsi/article/96/1/013003/3329652/Active-alignment-control-system-for-thin-disk</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0225717" target="_blank" >10.1063/5.0225717</a>
Alternative languages
Result language
angličtina
Original language name
Active Alignment Control System For Thin Disk Regenerative Amplifier
Original language description
We present an active alignment and stabilization control system for laser setups based on a thin-disk regenerative amplifier. This method eliminates power and pointing instability during the warm-up period and improves long-term stability throughout the entire operation. The alignment method is based on a four-mirror control system consisting of two motorized mirrors placed within the regenerative amplifier cavity, two additional motorized mirrors external to the amplifier cavity, and four camera detectors. The implemented stabilization system achieves significant performance improvements, increasing the power stability from 1.87% to 0.79% RMS and the peak-to-peak stability from 7.43% to 3.88%. Furthermore, the system significantly enhances beam positional stability, achieving up to a sixfold improvement in certain sensor measurements. The advantage of this method is the removal of long-term pointing instability by adding a second controlled motorized mirror to the cavity, in addition to using only one cavity end mirror for optimizing the overlap with the pump spot on the cavity medium. To achieve higher precision in pointing, the nonlinear hysteresis effect of the piezoelectric actuator is mitigated. Although the power and pointing stability of the cavity are secured, pointing instability at the input of the compressor occurs. This issue is resolved by two additional controlled motorized mirrors external to the cavity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21100 - Other engineering and technologies
Result continuities
Project
<a href="/en/project/EH22_008%2F0004573" target="_blank" >EH22_008/0004573: Breakthrough Laser Technologies for Smart Manufacturing, Space and Bio-Tech Applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Review of scientific instruments
ISSN
0034-6748
e-ISSN
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Volume of the periodical
96
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
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UT code for WoS article
001396309400004
EID of the result in the Scopus database
2-s2.0-85214573575