Abstract
Liquid-crystal spatial light modulator (SLM) is a widely-used adaptive device for beam shaping to achieve high quality nearfield measured by CCD camera in high power lasers. Precise image matching between the SLM and CCD is the key issue in this shaping system. We demonstrate an image matching method by using a four-blocker pattern written in the SLM and the output nearfield image measured by the CCD after long-distance spatial propagation. The size and edge-softening factor of the locating blocker in the SLM pattern is designed by using numerical simulation method. Experimental results show that when the locating blocker size is 1 mm and the edge-softening factor is 23%, a perfect CCD image can be achieved for matching with the SLM.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
