Configurable add-drop filter utilizing chiral fiber gratings

Details Configurable add-drop filter utilizing chiral fiber gratings Configurable add-drop filter utilizing chiral fiber gratings

2005-05-10

2005-05-10

Lee, John R. (Department: 2881)

Optical waveguides

With optical coupler

Plural

C385S015000

Reexamination Certificate

active

06891992

ABSTRACT:
An add-drop filter, utilizing chiral couplers, that enables a new signal to be added at a particular vacuum wavelength λ′kto a fiber optic line carrying n signal channels over a band of wavelengths encompassing λ1. . . λk−1, λk, λk+1. . . λn, while an existing signal, λk, is simultaneously dropped from the signal group.

REFERENCES:
patent: 5619355 (1997-04-01), Sharp et al.
patent: 5907427 (1999-05-01), Scalora et al.
patent: 6545783 (2003-04-01), Wu et al.

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