Optical communications – Transmitter and receiver system – Including optical waveguide
Reexamination Certificate
2011-01-18
2011-01-18
Vanderpuye, Ken N (Department: 2613)
Optical communications
Transmitter and receiver system
Including optical waveguide
C398S152000, C398S159000
Reexamination Certificate
active
07873283
ABSTRACT:
The invention aims to provide a monitoring method that can measure an optical SNR in an ultra high speed optical transmission system with high accuracy, and an optical transmission system using the same. To this end, in the optical transmission system to which the monitoring method of the present invention is applied, the degree of polarization of an optical signal transmitted from an optical transmission apparatus to an optical receiving apparatus via an optical transmission path is measured by a DOP measuring device, and an optical SNR of the optical signal is determined by an optical SNR calculation circuit based on a measured value of the degree of polarization.
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Akiyama Yuichi
Terahara Takafumi
Fujitsu Limited
Leung Danny W.
Staas & Halsey , LLP
Vanderpuye Ken N
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