Arrangement for low cost path protection for optical...

Details Arrangement for low cost path protection for optical... Arrangement for low cost path protection for optical...

2008-05-15

2009-06-23

Healy, Brian M (Department: 2883)

Optical waveguides

With optical coupler

Plural

C385S015000, C385S123000, C398S025000, C398S027000, C398S049000

Reexamination Certificate

active

07551816

ABSTRACT:
An arrangement provides low cost path protection in an optical communications network. The arrangement has a portion3that provides (broadcasts) an outbound optical signal, and at least first and second transmitting portions202, 206transmit the outbound optical signal simultaneously onto at least first and second respective mutually distinct optical pathways231, 232. Meanwhile, a selection arrangement204selects among plural incoming optical signals (via1, 5) according to a SELECT control signal228to provide a selected signal, and an analyzer222analyzes characteristics of the selected signal to provide the SELECT control signal228.

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