Based on the concept of shared risk Link group(SRLG) and p-Cycles,the definition of SRLG diverse p-Cycles is introduced.The expanding cycle algorithms with the SRLG constraints can get more SRLG diverse p-Cycles.We propose the SRLG p-Cycles assignation algorithm(SCAA) for the SRLG diverse p-Cycles optimum assignment in survivable WDM mesh networks.The minimal capacity allocation method of SCAA needs little reserved resources while the optimum capacity allocation method of SCAA can finish the p-Cycles assign...