Spatial Mode Multiplexer With Optical Reference Path
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United States of America Patent
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app pub date -
Jul 12, 2016
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Jun 2, 2016
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Abstract
A spatial mode multiplexer for multiplexing optical signals onto different spatial modes includes an optical path for directing a probe signal through a mode converter of the multiplexer. A spatial profile of an optical phase of the probe signal is detected e.g. by splitting the reference signal into monitoring and reference paths to produce an interference pattern that can be captured and processed to control the spatial mode converters.
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