Routing of optical signals

A system comprising:

• one or more computer-readable storage media configured to store instructions;
• and
• one or more processors communicatively coupled to the one or more computer-readable storage media and configured to, in response to execution of the instructions, cause the system to perform operations, the operations comprising:
• obtain a topology of an optical network, the topology indicating a plurality of optical links within the optical network;
• obtain a routing metric for each of the optical links, the routing metric used in selecting routes through the optical network along the plurality of optical links;
• obtain a signal noise tolerance of an optical signal to be routed through the optical network;
• select one or more of the plurality of optical links based on optical noises of the plurality of optical links;
• adjust routing metrics of the selected optical links based on the signal noise tolerance of the optical signal;
• and
• after the routing metrics of the one or more of the plurality of optical links are adjusted, determine a route for the optical signal through the optical network along two or more of the plurality of optical links based on the routing metrics of the plurality of optical links.

A method comprising:

• obtaining a topology of an optical network, the topology indicating a plurality of optical links within the optical network;
• obtaining a signal noise tolerance of an optical signal to be routed through the optical network;
• adjusting routing metrics of one or more of the plurality of optical links based on the signal noise tolerance of the optical signal;
• and
• after the routing metrics are determined, determining a route for the optical signal through the optical network along two or more of the plurality of optical links based on the routing metrics of the plurality of optical links.