Optical ring protection apparatus and methods

Details Optical ring protection apparatus and methods Optical ring protection apparatus and methods

2005-05-24

2005-05-24

Sedighian, M. R. (Department: 2633)

Optical communications

Fault recovery

Bypass inoperative element

C398S002000

Reexamination Certificate

active

06898376

ABSTRACT:
An optical communication system comprising plural optical communication paths, a passive optical coupler, and at least one optical node. The passive optical coupler has a plurality of inputs coupled through the passive optical coupler to an output of the passive optical coupler, and each input is coupled in a corresponding one of the optical communication paths. Each optical node comprises plural optical line terminals, each of which is interposed in a corresponding at least one of the optical communication paths. Each optical line terminal is operable to either (a) substantially prevent an optical signal propagating in that corresponding at least one optical communication path from reaching a corresponding input of the passive optical coupler through the at least one optical communication path, or (b) permit the optical signal to propagate in that corresponding at least one optical communication path towards the corresponding input of the passive optical coupler.

REFERENCES:
patent: 5023942 (1991-06-01), Goepel
patent: 5212578 (1993-05-01), Grimes et al.
patent: 5241409 (1993-08-01), Hill et al.
patent: 5559622 (1996-09-01), Huber et al.
patent: 5579421 (1996-11-01), Duvall et al.
patent: 5680235 (1997-10-01), Johansson
patent: 5712847 (1998-01-01), Hata
patent: 5745274 (1998-04-01), Fatehi et al.
patent: 5875048 (1999-02-01), Nemecek et al.
patent: 5889610 (1999-03-01), Fatehi et al.
patent: 5903371 (1999-05-01), Arecco et al.
patent: 6081359 (2000-06-01), Takehana et al.
patent: 6137603 (2000-10-01), Henmi
patent: 6400476 (2002-06-01), Arecco
patent: 0 535 858 (1993-04-01), None
patent: 0 535 858 (1993-04-01), None
patent: 0 535 858 (1993-04-01), None
patent: 07143529 (1995-02-01), None
patent: 0 851 704 (1998-07-01), None
patent: 0 851 704 (1998-07-01), None
patent: 0 877 502 (1998-11-01), None
patent: 0 877 502 (1998-11-01), None
Roldan et al., “Application of Dual-Access Architecture, With Drop and Continue Feature, to WDM Optical Networks”, Technology and Infrastructure, 1998, pp. 259-266.

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