Optimization of the beam shaping with a dynamic phase spatial light modulator

Byoungho Lee; Hwi Kim; Joonku Hahn; Kyongsik Choi

doi:10.1117/12.615578

29 August 2005 Optimization of the beam shaping with a dynamic phase spatial light modulator

Byoungho Lee, Hwi Kim, Joonku Hahn, Kyongsik Choi

Proceedings Volume 5876, Laser Beam Shaping VI; 587603 (2005) https://doi.org/10.1117/12.615578
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Several issues on the optimal diffractive beam shaping with a dynamic phase spatial light modulator are addressed. As for design theories, the optimal design method of the phase holograms considering the functional relationship between phase and amplitude modulations of the phase spatial light modulator is described. To achieve the optimal trade-off between diffraction efficiency and smoothness of the obtained diffraction images, the iterative Fourier transform algorithm with adaptive regularization parameter distribution is devised. Regarding experimental issues, we propose a beam shaping system configuration with the genetic feedback tuning loop in which the simplified genetic algorithm is employed to finely compensate the internal aberration of the optics in the beam shaping system. It is shown that the real-time tuning of the phase holograms for accurate beam shaping is possible using the dynamic behavior of the spatial light modulator.

Citation Download Citation

Byoungho Lee, Hwi Kim, Joonku Hahn, and Kyongsik Choi "Optimization of the beam shaping with a dynamic phase spatial light modulator", Proc. SPIE 5876, Laser Beam Shaping VI, 587603 (29 August 2005); https://doi.org/10.1117/12.615578

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