Simplified gain flattening and tap device

Details Simplified gain flattening and tap device Simplified gain flattening and tap device

2006-01-17

2006-01-17

Palmer, Phan T. H. (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling function

C385S033000, C372S045013

Reexamination Certificate

active

06987905

ABSTRACT:
A gain flattening and tap device. A gain flattening filter for use in fiber-optic communications includes a substrate. A GFF film is formed on a first surface of the substrate. An HR film is formed on a second surface of the substrate. The HR film is arranged to receive light from the GFF film and to reflect at least some of the light back through the GFF film. By passing the light through the GFF film multiple times, the effectiveness of the GFF film is multiplied. Further, by constructing the HR film to allow portions of the light to pass through, a tap may be implemented with the GFF.

REFERENCES:
patent: 6879744 (2005-04-01), Atanasov
patent: 2004/0090783 (2004-05-01), Chang et al.

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