OPTICAL SIGNAL REGENERATION AND AMPLIFICATION METHOD AND OPTICAL SIGNAL REGENERATION SYSTEM

Japanese Patent JP2013222204

A

To provide a novel optical signal regeneration and amplification method, a novel optical signal regeneration system, or the like.

A method for regenerating optical signals includes the steps of determining a source optical signal to be regenerated, adding a first pump optical signal and a second pump optical signal to the source optical signal to yield an intermediate optical signal, creating a first conjugate optical signal and a second conjugate optical signal from the intermediate optical signal, and performing degenerate phase-sensitive amplification utilizing the first conjugate optical signal, the second conjugate optical signal and the source optical signal to yield an output optical signal. The source optical signal is modulated with a multilevel modulation format. Each conjugate optical signal has a phase that is a conjugate of the phase of the source optical signal.

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YANG JENG-YUAN
AKASAKA YOICHI
SEKIYA MOTOYOSHI
KIM INWOONG

JP2013083894A

October 28, 2013

April 12, 2013

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FUJITSU LTD

G02F1/35; H04B10/291

JP2011145554A

2011-07-28

WO2012035304A1

2012-03-22

CROUSSORE,K.: "ALL-OPTICAL REGENERATION FOR PHASE-SHIFT KEYED OPTICAL COMMUNICATION SYSTEMS", PH.D. THESIS,UNIVERSITY OF CENTRAL FLORIDA, JPN6016045532, 2007, US, pages 1-173

Tadashige Ito
Tadahiko Ito
Akinori Yamaguchi

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