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Appl Opt. 2010 Sep 20;49(27):5117-24. doi: 10.1364/AO.49.005117.

Modal wavefront sensor based on binary phase-only multiplexed computer-generated hologram.

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College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, China, 410073.


We propose an approach for implementing a modal wavefront sensor using a binary phase-only multiplexed computer-generated hologram (BPMCGH). To simplify the coding and fabricating processes, a model based on tilt plane reference waves and an effective coding scheme for BPMCGH have been developed. The necessary number of subholograms to be recorded or coded is significantly reduced, from two or even more to just one per aberration mode, accordingly. The numerical and experimental demonstration results are presented and discussed and show that this approach is convenient for producing a BPMCGH and efficient for sensing the aberration modes.

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