POLARIZATION MULTIPLEXING OPTICAL TRANSMISSION CIRCUIT AND POLARIZATION MULTIPLEXING OPTICAL RECEPTION CIRCUIT

WIPO Patent Application WO/2016/166971

A1

The present invention provides digital coherent polarization multiplexing optical transmission/reception circuits integrated into a single chip, in which disproportion in losses due to a polarization path is compensated for by optimally distributing transmission/reception optical power using an optical power splitter in which the asymmetry of a branching fraction is small. Polarization multiplexing optical transmission/reception circuits including a polarization multiplexing optical transmission circuit configured from a first optical power splitter for branching the optical power of continuous light outputted from a light source, one polarization optical modulation circuit on a larger loss path side connected to the one output of the first optical power splitter, a second optical power splitter connected to the other output of the first optical power splitter, and the other polarization optical modulation circuit connected to the one output of the second optical power splitter.

KAMEI SHIN (JP)
JIZODO MAKOTO (JP)
FUKUDA HIROSHI (JP)
KIKUCHI KIYOFUMI (JP)
TSUZUKI KEN (JP)

PCT/JP2016/001991

October 20, 2016

April 12, 2016

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NIPPON TELEGRAPH & TELEPHONE (JP)

H04J14/00; H01S5/022; H04B10/516; H04J14/04; H04J14/06

WO2014141685A1

2014-09-18

JP2010156842A

2010-07-15

DOERR, C. ET AL.: "Single-Chip Silicon Photonics 100-Gb/s Coherent Transceiver", OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC, 2014, XP032633017
See also references of EP 3285420A4

TANI & ABE, p. c. (JP)
Patent business corporation A valley and Abe patent firm (JP)

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