Wavelength and filter arrangement for WDM networks

Details Wavelength and filter arrangement for WDM networks Wavelength and filter arrangement for WDM networks

2007-01-23

2007-01-23

Tran, Dzung (Department: 2613)

Optical communications

Fault recovery

Bypass inoperative element

C398S003000, C398S004000, C398S059000, C370S223000

Reexamination Certificate

active

11108771

ABSTRACT:
In a ring having first and second adjacent nodes, and two fibers carrying information between the first and second nodes, the first fiber carries information in one direction, while the second fiber carries information in another direction. Each fiber includes wavelength capacity allocated to working and protection traffic. The working and protection wavelength capacities in the first fiber are respectively assigned to first and second disjoint sets of wavelengths, while the working and protection wavelength capacities in the second fiber are respectively assigned to the second and first disjoint sets of wavelengths.

REFERENCES:
patent: 6084694 (2000-07-01), Milton et al.
patent: 6249510 (2001-06-01), Thompson
patent: 6473397 (2002-10-01), Au
patent: 6525852 (2003-02-01), Egnell

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