Optical transmission apparatus and method of controlling the...

Details Optical transmission apparatus and method of controlling the... Optical transmission apparatus and method of controlling the...

2007-08-22

2010-10-12

Pascal, Leslie (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S083000

Reexamination Certificate

active

07813642

ABSTRACT:
The present invention relates to an optical transmission apparatus capable of suppressing a transitional gain variation when a number of signal wavelengths changes, and maintaining communication quality in optical signals. The optical transmission apparatus is provided with an optical power control device that varies light power of light for each wavelength component corresponding to a wavelength channel, the light including signal light and spontaneous emission light; a wavelength arrangement information obtaining unit that obtains arrangement information of the wavelength channel of the signal light; and a control unit that controls the power control device based on the arrangement information obtained at the wavelength arrangement information obtaining unit so that light power of a wavelength component of the signal light and light power of a wavelength component other than the wavelength component of the signal light become substantially equal.

REFERENCES:
patent: 2003/0099475 (2003-05-01), Nemoto et al.
patent: 2006/0269284 (2006-11-01), Fujita
patent: 2002-353939 (2002-12-01), None
patent: 2003-163641 (2003-06-01), None

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