A method and apparatus for optical signal routing in an optical network that includes one or more optical fibers to carry multiplexed signals. Each optical fiber may include a plurality of optical carriers with each optical carrier operating at a different wavelength. The optical network includes an...http://www.google.com.au/patents/US5920412?utm_source=gb-gplus-sharePatent US5920412 - Method and apparatus for signal routing in an optical network and an ATM system
