A system, apparatus and method are described for controlling the gain across one or more amplifier nodes within an optical span. In one embodiment, a fast local amplifier constant gain control loop is provided that maintains a constant gain across an amplifier node for each of the channels within an optical signal. A slow link level gain setting control loop is provided to set and/or adjust the target gain on the amplifier node(s). A gain adjust sequence is performed by the slow link level gain setting control loop to adjust the target gain(s) in response to various events and mechanisms. A "time of flight" protection method is also provided to ensure consistency between the fast local amplifier gain control loop and the slow link level gain setting control loop.
申请公布号
WO2007005324(A2)
申请公布日期
2007.01.11
申请号
WO2006US24358
申请日期
2006.06.23
申请人
INFINERA CORPORATION;MITCHELL, MATTHEW, L.;TAYLOR, ROBERT, B.;SPRAGUE, EDWARD, E.
发明人
MITCHELL, MATTHEW, L.;TAYLOR, ROBERT, B.;SPRAGUE, EDWARD, E.