Patent ID: 9419744
Filing Date: 2016-08-16
CPC Classification: H04B,H04J,H04L

Claim Text:
1. A polarization multiplexing optical transmitter comprising: a frequency dividing unit that performs frequency dividing on a clock signal having a Baud rate frequency; a phase modulation unit that performs phase modulation on a light signal in accordance with the clock signal having undergone the frequency dividing; a branching unit that branches the phase-modulated light signal into two branched light signals with polarizations orthogonal to each other; a delay unit that delays one branched light signal relative to the other branched light signal to generate light signals having phases inverted relative to each other and polarizations orthogonal to each other; and a polarization multiplexing unit that combines the generated light signals with phases inverted relative to each other and polarizations orthogonal to each other, to generate a polarization multiplexed signal.