Spatio-temporal coupling of RMS errors in laser amplification

We developed a theoretical model for the relationship between the input and amplified laser beams of energy stability and spatial uniformity in the amplification process. 10 Hz, 8 ns, 1064 nm Nd:YAG Q-switched resonator with Nd:YAG main amplifier was employed for the experiment. The theoretical mode...

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Veröffentlicht in:Optics express 2023-01, Vol.31 (2), p.1868-1877
Hauptverfasser: Jo, Hanjin, Lee, Geonhui, Park, Daewoong, Hwang, Seungjin, Hong, Kyung Hee, Yu, Tae Jun
Format: Artikel
Sprache:eng
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Zusammenfassung:We developed a theoretical model for the relationship between the input and amplified laser beams of energy stability and spatial uniformity in the amplification process. 10 Hz, 8 ns, 1064 nm Nd:YAG Q-switched resonator with Nd:YAG main amplifier was employed for the experiment. The theoretical model simulation and Frantz-Nodvik simulation were performed by utilizing the obtained beam image, acquired energy from the experiment, and stored fluence from the gain medium. The result indicated that the fluctuation of the spatial distribution in a single beam influences the stability of temporally distributed energy during the amplification process of the laser beam, thereby improving energy stability.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.479632