Title:
波長分割多重光伝送システムにおける相互位相変調抑圧装置および光通信システム
Document Type and Number:
Japanese Patent JP4181742
Kind Code:
B2
Abstract:
According to the cross phase modulation suppressing device of the present invention, the wavelength multiplexing optical signal from an optical fiber having polarization orthogonality between the adjacent channels is split for every channel and the split optical signals are led to delaying optical waveguides of different lengths by the AWG (Arrayed Waveguide Grating) connected to a second port of an optical circulator, and the split optical signals with each delay added are reflected by the Farraday mirrors in polarization states orthogonal to each other and again led to the delaying optical waveguides. The reflected lights are combined by the AWG and supplied to a third port of the optical circulator as the wavelength multiplexing optical signal with orthogonality of polarization states kept between the adjacent channels.
Inventors:
Yoshihisa Inada
Shunji Ito
Shunji Ito
Application Number:
JP2000378229A
Publication Date:
November 19, 2008
Filing Date:
December 13, 2000
Export Citation:
Assignee:
NEC
International Classes:
H04B10/2507; H04B10/2513; H04B10/2557; H04J14/00; H04J14/02
Domestic Patent References:
| JP10135930A | ||||
| JP11271817A | ||||
| JP2000174699A | ||||
| JP2000244402A |
Attorney, Agent or Firm:
▲柳▼川 信