4-port wavelength selective router

Optical waveguides – With optical coupler – Plural

Reexamination Certificate

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Details

C385S015000, C385S031000

Reexamination Certificate

active

06999653

ABSTRACT:
The present invention relates to a 4-port wavelength selective router and the add/drop multiplexer using the above router. More particularly, it relates to a 4-port wavelength selective router that can effectively routes counter-propagating signals while suppressing multiple reflections generated in the bidirectional transmission systems and networks.

REFERENCES:
patent: 5706375 (1998-01-01), Mihailov et al.
patent: 5875272 (1999-02-01), Kewitsch et al.
patent: 6061484 (2000-05-01), Jones et al.
patent: 6567194 (2003-05-01), Badr
patent: 2358305 (2001-07-01), None
patent: 07212316 (1995-08-01), None

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