Optical multiplexing/demultiplexing device

Details Optical multiplexing/demultiplexing device Optical multiplexing/demultiplexing device

1997-02-14

1999-07-06

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359161, H04J 1402

Patent

active

059204117

ABSTRACT:
An optical multiplexing/demultiplexing device has a plurality of optical ports along a cascading optical path with wavelength-specific filters disposed at the ports. The filters are selected to form groups of at least two virtually identical filters. At least one "add" connection is provided for admitting a selected band into the optical path, the connection being disposed at a second or consecutive (third, fourth etc . . . ) filter of the same wavelength as the band being added. The device uses a single medium for processing optical signals, e.g. a single polygonal optical block or air.

REFERENCES:
patent: 4244045 (1981-01-01), Nosu et al.
patent: 4707064 (1987-11-01), Dobrowolski et al.
patent: 4756587 (1988-07-01), Sano et al.
patent: 5113277 (1992-05-01), Ozawa et al.
patent: 5457558 (1995-10-01), Yokoyama
patent: 5521733 (1996-05-01), Akiyama et al.
patent: 5583683 (1996-12-01), Scobey

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