SIGNAL DETECTION DEVICE, SIGNAL DETECTION METHOD, AND PROGRAM

SIGNAL DETECTION DEVICE, SIGNAL DETECTION METHOD, AND PROGRAM

One aspect of the present invention is a signal detection device including a mode demultiplexer configured to convert N (N is a natural number) spatial mode signals including a plurality of higher modes excited in a transmission path fiber into N base modes and output the N basis modes, a frequency...

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Hauptverfasser: Hamaoka, Fukutaro, SHIBAHARA, Koki, MIYAMOTO, Yutaka, KOBAYASHI, Takayuki, SHIMIZU, Shimpei
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
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creator Hamaoka, Fukutaro
SHIBAHARA, Koki
MIYAMOTO, Yutaka
KOBAYASHI, Takayuki
SHIMIZU, Shimpei
description One aspect of the present invention is a signal detection device including a mode demultiplexer configured to convert N (N is a natural number) spatial mode signals including a plurality of higher modes excited in a transmission path fiber into N base modes and output the N basis modes, a frequency conversion unit configured to convert N optical signals into frequencies different from each other, a multiplexing unit configured to multiplex the N optical signals having frequencies that have been converted, and a reception unit configured to photoelectrically convert a multiplexed optical signal while maintaining modulation information for a phase and polarization, perform digital signal conversion and signal processing, and demodulate an original information sequence.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
title SIGNAL DETECTION DEVICE, SIGNAL DETECTION METHOD, AND PROGRAM
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