Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2006-07-18
2006-07-18
Bello, Agustin (Department: 2633)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S038000
Reexamination Certificate
active
07079765
ABSTRACT:
An optical signal quality degradation monitoring apparatus for monitoring an optical wavelength division multiplex signal is implemented in a small size. To monitor the optical signal quality degradation in the optical wavelength division multiplex signal by a configuration as simple as possible, the following configurations are used: A configuration using an optical wavelength division demultiplexer and a sampling clock generator to make one an electric signal processor; A configuration using an optical sampling pulse train generator, an optical multiplexer, a nonlinear optical medium, and an optical wavelength division demultiplexer to make one an electric signal processor; or a configuration using a selection wavelength control section, an optical wavelength selecting section, and a sampling clock generator to make one electric signal.
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Shake Ippei
Takara Hidehiko
Bello Agustin
Finnegan Henderson Farabow Garrett & Dunner LLP
Nippon Telegraph and Telephone Corporation
Wang Quan-Zhen
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