WDM ring interconnection

Details WDM ring interconnection WDM ring interconnection

2006-11-28

2006-11-28

Fureman, Jared J. (Department: 2876)

Optical waveguides

With optical coupler

Plural

Reexamination Certificate

active

07142745

ABSTRACT:
Optical signals may be carried to and from a ring without the use of chromatic dispersion compensation. In one embodiment, a WDM ring incorporates chromatic dispersion compensation and carries wavelength-multiplexed optical signals with disparate data rates. At least one optical signal is transmitted away from the ring along a link that does not incorporate chromatic dispersion compensation. For example, the ring may carry both OC-192 (10 Gbps) and OC-48 (2.5 Gbps) optical signals with one or more OC-48 signals being transmitted away from the ring without the use of chromatic dispersion compensation. The OC-48 signal reach is not dispersion-limited due to the chromatic dispersion compensation applied within the ring.

REFERENCES:
patent: 5809196 (1998-09-01), Meli et al.
patent: 5943151 (1999-08-01), Grasso et al.
patent: 6288810 (2001-09-01), Grasso et al.
patent: 6426815 (2002-07-01), Koehler
patent: 6600582 (2003-07-01), Liu et al.
patent: 6708002 (2004-03-01), Novak et al.

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