Optical communications – Optical repeater system – Monitoring
Reexamination Certificate
2008-01-01
2008-01-01
Vanderpuye, Kenneth (Department: 2613)
Optical communications
Optical repeater system
Monitoring
C398S037000, C398S097000, C398S157000, C398S173000, C359S341410
Reexamination Certificate
active
07315696
ABSTRACT:
Gain setting of a receiving amplifier, is performed by detecting the necessity of gain setting when a receiving amplifier is turned on, requesting WDM transmission equipment in a preceding station to output ASE light; in a WDM transmission equipment of the preceding station, shutting off both passing-through light and added light, and outputting the ASE light corresponding to a predetermined number of wavelengths of signal light; in the receiving amplifier of the WDM transmission equipment in the station of interest, performing the gain setting by use of the ASE light; and on completion of the gain setting, the WDM transmission equipment of the station of interest, requesting the WDM transmission eouipment of the preceding station to halt the ASE light output, and the WDM transmission equipment of the preceding station, halting the ASE light output upon receiving the request and switching the output to an optical signal output.
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Hara Shingo
Suzuki Manabu
Suzuki Toshihiro
Taniguchi Miwa
Fujitsu Limited
Kim David S
Staas & Halsey , LLP
Vanderpuye Kenneth
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