Patent ID: 7081987
Filing Date: 2006-07-25
Classification: H04B,H04J

Abstract:
1. A coordinated method for controlling dynamic gain equalization in an optical transport network having a plurality of network elements, comprising: detecting a deviation in optical power of a first optical signal traversing the optical transport network along a transmission path and an oriciination point at which the deviation occurred in the optical transport network; adjusting spectral profile of the first optical signal at a first network element in the optical transport network, the first network element being located in the transmission path of the optical signal downstream from the origination point; and adjusting spectral profile of the optical signal at a second network element based on the adjustment at the first network element, the second network element being located in the transmission path of the optical signal downstream from the origination point and the first network element, wherein the step of adjusting spectral profile at a first network element further comprises formulating a forward adjustment message at the first network element and propagating the forward adjustment message to other network elements located in the transmission oath downstream from the first network element.