Patent ID: 6594048
Filing Date: 2003-07-15
Classification: H04B,H04J

Abstract:
A method for allocating optical channels in a WDM system, comprising the steps of:determining a four wave mixing (FWM) power matrix for an initial channel plan, said initial channel plan including a plurality of optical channels; determining FWM crosstalk for each of said plurality of optical channels based on said FWM power matrix; selecting one of said plurality of optical channels having a maximum level of FWM crosstalk, and dropping said one of said plurality of optical channels from said initial channel plan to thereby obtain a new channel plan; determining FWM crosstalk for each of said plurality of optical channels in said new channel plan; selecting one of said plurality of optical channels in said new channel plan having a maximum FWM crosstalk value; and determining whether said maximum FWM crosstalk value exceeds a predetermined acceptable level.