Staas & Halsey LLP
Optical frequency-division multiplexer, optical communication system, and optical frequency-division multiplexing method
An optical frequency-division multiplexer includes: a first optical coupler configured to receive a first wavelength-division multiplexed light obtained by wavelength-division multiplexing a first carrier light and a first monitor light and split the first carrier light and the first monitor light from each other; an optical modulator configured to optically modulate the split first carrier light using a signal including a first data signal so as to multiplex the first data signal with the first carrier light; a receiver configured to receive a branched part of the split first monitor light and demodulate a second data signal from the first monitor light; and a second optical coupler configured to couple a remaining part of the split first monitor light and the first carrier light with which the first data signal has been multiplexed.
FUJITSU LIMITED
H H H H H H
H04J H04B H04J H04J H04J H04J
additional additional inventional inventional inventional inventional
Shigeki Tomoyuki
Watanabe Kato