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Titolo:
Ultrasonic beamsplitter for high-power CO2 lasers
Autore:
Vandamme, E; Muys, P;
Indirizzi:
VDM Laser Opt NV, B-9810 Eke Nazareth, Belgium VDM Laser Opt NV Eke Nazareth Belgium B-9810 -9810 Eke Nazareth, Belgium
Titolo Testata:
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
fascicolo: 4, volume: 3, anno: 2001,
pagine: S68 - S70
SICI:
1464-4258(200107)3:4<S68:UBFHCL>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Keywords:
ultrasonic diffraction gratings; high-power CO2 laser; beam diagnostics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
2
Recensione:
Indirizzi per estratti:
Indirizzo: Vandamme, E VDM Laser Opt NV, Tulpenstr 2, B-9810 Eke Nazareth, Belgium VDM Laser Opt NV Tulpenstr 2 Eke Nazareth Belgium B-9810 gium
Citazione:
E. Vandamme e P. Muys, "Ultrasonic beamsplitter for high-power CO2 lasers", J OPT A-P A, 3(4), 2001, pp. S68-S70

Abstract

Laser beam profilers are extensively used to visualize the intensity distribution in the laser beam. In this way, diagnostic information is availableto the laser operator making it possible to pet-form troubleshooting in case of poor laser performance. In this paper, a new beam splitting device for diagnostic purposes is described. The splitting is based on creating a diffraction grating in the air of the beam delivery path. For an acoustic wave in the 1 MHz-region interacting with a CO2 laser beam at 10.6 mum wavelength, this leads to Bragg diffraction since the Klein-Cook parameter is 14. The beam diffracted off the grating is used as a beam monitor and is typically a factor 10(6) lower in power than the main beam.

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Documento generato il 23/09/20 alle ore 00:22:51