Patent ID: 7127174

Claim:
An integrated optical time division multiplexing (OTDM) module comprising: an integrated modulator chip for generating at least first and second optical Return-to-Zero signal streams; and an integrated time-delay chip coupled to the integrated modulator chip for introducing a prescribed optical delay between the at least first and second optical Return-to-Zero signal streams and for combining the at least first and second optical Return-to-Zero signal streams after introduction of the prescribed delay, the integrated time-delay chip including a plurality of waveguides formed on a substrate of the integrated time-delay chip for introducing an optical delay and operable to guide the at least first and second optical Return-to-Zero signal streams through the integrated time-delay chip, where the integrated time-delay chip is operable to combine the at least first and second optical Return-to-Zero signal streams including interleaving the plurality of waveguides on the integrated time-delay chip.