Hybrid-integrated high-speed OTDM module

Details Hybrid-integrated high-speed OTDM module Hybrid-integrated high-speed OTDM module

2006-10-24

2006-10-24

Phan, Hanh (Department: 2613)

Optical communications

Multiplex

Time division

C398S098000, C398S099000, C398S100000, C398S101000, C398S103000, C398S182000, C398S183000, C398S200000, C398S201000, C398S190000, C398S191000

Reexamination Certificate

active

07127174

ABSTRACT:
A novel optical time division multiplexing (OTDM) module based on hybrid-integrated optical chips is disclosed. An integrated modulator chip generates optical RZ signal streams which are then interleaved in an integrated time-delay chip to produce an OTDM signal. The integrated modulator chip is coupled and secured to the integrated time-delay chip via a suitable optical index-matching layer or collimating lenses. Such an approach alleviates the stability problems offered by conventional fiber-based OTDM technology and aids in reducing the size and complexity as well as lowering the cost for the assembly. Furthermore, the time-delay chip of the present invention offers fine tuning capabilities thereby allowing for slight adjustments in the interleaving of optical signal streams when non-standard data transmission rates are required.

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