Optical add-drop multiplexer

Details Optical add-drop multiplexer Optical add-drop multiplexer

2006-03-07

2006-03-07

Leung, Christina Y. (Department: 2633)

Optical communications

Multiplex

Wavelength division or frequency division

C398S096000

Reexamination Certificate

active

07010228

ABSTRACT:
An optical add-drop multiplexer comprises an optical switch (10) for selection of a desired wavelength channel to be extracted, a pre-processing channel assembly (20), an optical reflector (50), an optical extractor (60), a post-processing channel assembly (30), and an optical coupler (40) aligned with the post-processing channel assembly. The pre-processing channel assembly transmits a multiplexed signal stream containing a plurality of channels. The optical reflector directs light rays emitted from the pre-processing channel assembly into the optical extractor. The optical extractor comprises a narrow bandpass filter (62) that allows a desired channel to pass therethrough and reflects other unextracted channels. The desired channel can be dropped by switching to a corresponding output port of the optical switch. The optical reflector directs light rays reflected from the optical extractor to the post-processing channel assembly. The optical coupler combines the unextracted channels and an insertion channel.

REFERENCES:
patent: 3506834 (1970-04-01), Buchsbaum et al.
patent: 4274706 (1981-06-01), Tangonan
patent: 4744618 (1988-05-01), Mahlein
patent: 5233453 (1993-08-01), Sivarajan et al.
patent: 5510920 (1996-04-01), Ota
patent: 6198864 (2001-03-01), Lemoff et al.
patent: 6434299 (2002-08-01), Yudin et al.
patent: 6707959 (2004-03-01), Ducellier et al.

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