Optical add-drop multiplexer for optical communication networks

Details Optical add-drop multiplexer for optical communication networks Optical add-drop multiplexer for optical communication networks

1996-02-22

1998-09-22

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359127, H04S 1402

Patent

active

058122915

ABSTRACT:
The optical add/drop multiplexer has a pair of nominally identical interference filters, one of which carries out the function of extracting a carrier from a wavelength division multiplexed stream and the other the insertion function. The filters are arranged in parallel planes and are secured to opposite faces of a transparent plate so that the stream exits the device after having undergone reflection by both filters. The plate is mounted on a support which can be rotated in either direction to vary the tuning wavelength of the filters.

REFERENCES:
patent: 4244045 (1981-01-01), Nosu et al.
patent: 4482994 (1984-11-01), Ishikawa
patent: 4673270 (1987-06-01), Gordon
patent: 4707064 (1987-11-01), Dobrowolski et al.
patent: 5005935 (1991-04-01), Kunikane et al.
patent: 5583683 (1996-12-01), Scobey
patent: 5629995 (1997-05-01), Duck et al.
Arrayed-waveguide grating add-drop multiplexer with loop-back optical paths Electronics Letters--25th Nov. 1993, vol. 29, No. 24.
OFC'95 Optical Fiber Communcation, vol. 8, 1995 Technical Digest Series, 26 Feb-3 Mar 95 Multilayer Add-Drop Multiplexers in a Self-Healing WDM Ring Network, Laville, et al.

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