Single-shot laser beam parameter measurement system for near-infrared laser beams

0517141 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
Nagisetty, Siva S. - Miura, Taisuke - Chyla, Michal - Smrž, Martin - Mocek, Tomáš
Single-shot laser beam parameter measurement system for near-infrared laser beams.
Journal of the Optical Society of America. B. Roč. 36, č. 11 (2019), s. 3098-3103. ISSN 0740-3224. E-ISSN 1520-8540
Grant CEP: GA MŠMT EF15_006/0000674; GA MŠMT LO1602; GA MŠMT LM2015086
GRANT EU: European Commission(XE) 739573 - HiLASE CoE
Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institucionální podpora: RVO:68378271
Klíčová slova: laser beam parameters * focus shift using Yaglass * telecentric lens
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 2.180, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1364/josab.36.003098

We present a simple and fast technique for measuring laser beam parameters, including focus shift using Yaglass, a telecentric lens, and a camera. Our technique is based on imaging of visible fluorescence that represents caustic of the focused near-infrared laser beam. By processing a single camera frame, a large number of second-moment beam diameters are calculated simultaneously without any need for a traditional scan in the propagation direction. The M2 values measured with this method and standard method are in excellent agreement.We extend this technique to measure the focus shift and focus spot size. This method is fast and allows the real-time monitoring of laser beam parameters simultaneously during the manufacturing process.
Trvalý link: http://hdl.handle.net/11104/0302431