Image-Processing System to Improve Modal Purity and Reduce Modal Crosstalk
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United States of America Patent
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app pub date -
Jun 2, 2016
filing date -
Jun 2, 2016
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Abstract
An optical system for coupling an optical signal into an orbital angular momentum (OAM) mode of an OAM optical fiber is disclosed. The system includes a first detector array for capturing an input image, a processor for processing the input image to determine modal purity and for generating a feedback signal based on the modal purity and a spatial light modulator (SLM) having an array of pixels that are adjustable in response to the feedback signal. This system improves modal purity and lessens modal crosstalk.
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