Sparse Dispersion Compensation Of Optical Data Transmission Paths
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United States of America Patent
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May 25, 2017
app pub date -
Nov 18, 2016
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Nov 20, 2015
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Abstract
An apparatus, e.g. an optical data transmission device, is configured to propagate a non-return-to-zero (NRZ) modulated optical communication signal. A plurality of optical amplifiers are configured to receive the modulated optical signal. An optical transmission line includes a sequence of at least five spans of optical fiber, with each adjacent pair of the spans being connected by one of the optical amplifiers. Between about 10% and about 75% of the optical amplifiers include a dispersion compensation module (DCM) and a remainder of the optical amplifiers do not include a DCM, and at least two of said optical amplifiers are optically coupled between a first and a second optical add-drop multiplexer.
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