Abstract
Light field control through a diffuser using feedback wavefront shaping (WS) is an emerging method for sorting in orbital angular momentum (OAM) multiplexed communications. However, the feedback iterative optimization of the wavefront shaper converges slowly, reducing the real-time capability. Herein, we developed a WS scheme using a diffuser with customizable optical phase conjugation (COPC) for arbitrary OAM light control and mode sorting without iteration. The numerical and experimental results showed that the multiplexed OAM mode can be sorted into predefined spatial positions. Moreover, we found that the OAM mode with a larger topological charge |l| has stronger focusing, i.e., higher transmittance through the diffuser. Furthermore, we demonstrated that two, four, six, and eight modes can be sorted beyond 0.99, 0.93, 0.87 and 0.79 detection probabilities in the experiment.
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.
