Abstract
Real-time restoration of a blurred image using an all-optical adaptive-optics system with a liquid-crystal (LC) device is described. This system is based on a feedback interferometer, where the two-dimensional output fringe intensity from a Mach–Zehnder interferometer with large radial shear is optically fed back to an optically addressed phase-only LC spatial light modulator (SLM). In operation the phase of the reflection-type modulator approximates to half of the conjugate of the input aberrated wave front without a separate aberration-free reference wave. We applied this system to a problem of imaging through a phase-distorting medium and observed that an image blurred by the phase disturbance was restored immediately after the feedback loop was closed. In this case the response time and the resolution of the SLM were about 60 ms and 40 line pairs/mm, respectively.
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.
