Upgradable modular wavelength division multiplexer

Details Upgradable modular wavelength division multiplexer Upgradable modular wavelength division multiplexer

1996-10-10

1999-07-27

Lefkowitz, Edward

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359133, 359138, 359173, H04J 1402

Patent

active

059300167

ABSTRACT:
A method and apparatus for constructing a modular and easily upgradable optical network node using the technique of wavelength-division multiplexing (WDM). According to the present invention, a WDM point-to-point link end node can be modularly upgraded in the number of wavelength channels or upgraded to a ring network node; both without requiring equipment internal rewiring.

REFERENCES:
patent: 4781427 (1988-11-01), Husbands et al.
patent: 5396357 (1995-03-01), Goossen et al.
patent: 5487120 (1996-01-01), Choy et al.
patent: 5712932 (1998-01-01), Alexander et al.
patent: 5724167 (1998-03-01), Sabella
patent: 5739935 (1998-04-01), Sabella

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