Optical add/drop module

Details Optical add/drop module Optical add/drop module

2005-08-16

2005-08-16

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Plural

C385S089000, C398S083000, C398S085000, C398S135000, C398S138000

Reexamination Certificate

active

06931174

ABSTRACT:
A plug-in, optical add/drop (OAD) device includes a filter for adding and dropping a light beam of wavelength (λk) from a combined light beam having individual beams of different wavelengths (λ1 . . . n). Several devices can be selectively integrated to create an optical communications system that will handle “n” different optical communications circuits. In operation, the devices are individually connected (plugged-in) to a GBIC, and they are serially connected (plugged-in) to each other. Consequently, immediately upstream from a device, the combined light beam includes wavelengths (λ1through λn). On the other hand, the combined light beam immediately downstream includes (λ1through λk−1and λk+1through λn).

REFERENCES:
patent: 3857092 (1974-12-01), Meyer
patent: 5416627 (1995-05-01), Wilmoth
patent: 5534876 (1996-07-01), Erickson
patent: 5777768 (1998-07-01), Korevaar
patent: 6542660 (2003-04-01), Medin et al.

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