Spatial and temporal stabilization of holographically-shaped beam with the Fourier space intensity measurement

Yoshio Hayasaki; Satoshi Hasegawa

doi:10.1117/12.3016729

20 June 2024 Spatial and temporal stabilization of holographically-shaped beam with the Fourier space intensity measurement

Yoshio Hayasaki, Satoshi Hasegawa

Author Affiliations +

Proceedings Volume 13005, Laser + Photonics for Advanced Manufacturing; 1300509 (2024) https://doi.org/10.1117/12.3016729
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Holographic beam shaping that is performed with a computer-generated hologram displayed on a spatial light modulator is very useful for many kinds of scientific and engineered applications. The temporal and spatial stabilization is indispensable for them, especially, for the material laser processing, because it requires a high-quality beam in short and long terms. In our research, the stabilization is performed with an observation of the intensity distribution that is easily detected by simple optics and an ordinary imager. The reconstruction of the computer-generated hologram is iteratively optimized according to the holographic reconstruction on the Fourier space. The performance of the beam shaping is estimated under the application of laser processing of glass.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yoshio Hayasaki and Satoshi Hasegawa "Spatial and temporal stabilization of holographically-shaped beam with the Fourier space intensity measurement", Proc. SPIE 13005, Laser + Photonics for Advanced Manufacturing, 1300509 (20 June 2024); https://doi.org/10.1117/12.3016729

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available