Optical fiber protection switch

Details Optical fiber protection switch Optical fiber protection switch

2007-12-25

2007-12-25

Nguyen, Tu T (Department: 2886)

Optical waveguides

With optical coupler

Switch

Reexamination Certificate

active

11289860

ABSTRACT:
An optical fiber protection switch comprises an optical interface and an optical switching system. The optical interface exchanges optical signals with optical fibers that are deployed in a ring configuration. The optical switching system exchanges the optical signals with the optical interface. The optical switching system performs ring switching of the optical signals in the optical domain in response to a first fault. The optical switching system performs span switching of the optical signals in the optical domain in response to a second fault.

REFERENCES:
patent: 6331906 (2001-12-01), Sharma et al.
patent: 7003189 (2006-02-01), Fang et al.

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