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Problem Addressed

Present-day networks are being challenged by dramatic increases in data rate demands of emerging applications. Incorporating fast lightpath switching into optical network architectures is critical to enable the growth, power efficiency, and cost-effective scalability of next-generation networks. A lightpath is an end-to-end all optical connection from the source node to the destination node composed of a constant wavelength. Scheduled lightpath switches improve network resource utilization while maintaining a good network performance by relinquishing network resources to other users. The Inventors’ algorithm for lightpath switching utilizes models of physical layer impairments to make sure the scheduled lightpath is not corrupted by switching induced channel impairments in EDFA-amplified optical networks