Broadband optical network apparatus and method

Details Broadband optical network apparatus and method Broadband optical network apparatus and method

2007-02-20

2007-02-20

Payne, David C. (Department: 2613)

Optical communications

Multiplex

Broadcast and distribution system

C398S058000, C398S063000

Reexamination Certificate

active

10120960

ABSTRACT:
Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.

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