Fig. 1. Illustration of inter core crosstalk in a seven-core optical fiber. (a) Seven-core fiber; (b) inter core crosstalk

Fig. 2. Two-dimensional crosstalk domain models of resources on different cores of one link. (a) Core 2; (b) core 4; (c) core 6

Fig. 3. Flow chart of the algorithm

Fig. 4. Comparison of bandwidth blocking probability for different algorithms. (a) NSFNET; (b) USNET

Fig. 5. Comparison of spectrum utilization for different algorithms. (a) NSFNET; (b) USNET