OCDM-based all optical multi-level security
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United States of America Patent
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Sep 9, 2014
Grant Date -
Jan 17, 2013
app pub date -
Sep 12, 2012
filing date -
Sep 19, 2008
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Abstract
A high data rate optical signal is inverse multiplexed into a multitude of lower-rate tributaries, each of which is coded by its unique OCDM code, and the combined coded tributaries are injected into a common phase scrambler. Coherent summation of these optically encoded tributaries pass through a shared phase or phase and frequency scrambler before exiting the secure location. The setting of the scrambler acts as the key. The authorized recipient with the correct key retrieves the ones and zeros of the several decoded signals.
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