Low cost amplification in DWDM networks

Details Low cost amplification in DWDM networks Low cost amplification in DWDM networks

2005-11-15

2005-11-15

Kaveh, Kianni C. (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling function

C385S014000, C385S015000, C385S039000

Reexamination Certificate

active

06965712

ABSTRACT:
An optical repeater is provided for use in an optical communication network wherein only wavelength ranges having desirable gain characteristics are used for communication. Selectively assigning channels to wavelengths having desirable gain characteristics for a given amplifier permits channels to be more closely spaced in the available frequency spectrum. Such an arrangement reduces the cost of optical communication systems by removing the need for gain flattening filters, while maintaining the ability of the network to support a desired number of communication channels.

REFERENCES:
patent: 6243176 (2001-06-01), Ishikawa et al.
patent: 6782205 (2004-08-01), Trisnadi et al.
patent: 6833946 (2004-12-01), Islam
patent: 2001/0026384 (2001-10-01), Sakano et al.
patent: 2002/0196492 (2002-12-01), Trisnadi et al.
patent: 2003/0123139 (2003-07-01), Terahara et al.
patent: 2003/0210844 (2003-11-01), Kakui et al.
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