Optical coupling/splitting device, two-way optical propagation device, and optical-transmit-receive system
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United States of America Patent
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Apr 5, 2016
Grant Date -
Jul 3, 2014
app pub date -
Sep 27, 2012
filing date -
Sep 27, 2011
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Abstract
The present invention relates to an optical coupling/splitting device that realizes the splitting of a down-signal and the coupling of up-signals by the same optical device, and reduces coupling losses of the up-signal. An optical coupling/splitting device in the present invention comprises an optical coupling/splitting means for coupling a plurality of up-signals in a multi-mode for output and splitting a down-signal in a single mode for output, and a two-way optical propagation means for propagating the up-signal that is output from the optical coupling/splitting means in a multi-mode for output and propagate the down-signal in a single mode to be output to the optical coupling/splitting means.
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