Light signal switching device and optical communication system

Details Light signal switching device and optical communication system Light signal switching device and optical communication system

1996-08-09

1998-10-27

Ngo, John

Optical waveguides

With optical coupler

Plural

385 16, 385 22, G02B 628

Patent

active

058288015

ABSTRACT:
In a light signal switching device including an input optical fiber via which a light signal is received. There are provided first and second output optical fibers each being doped with a rare-earth element, first and second pumping sources inputting exciting lights to the first and second output optical fibers, a drive controller driving the first and second pumping sources so that one of the exciting lights is applied to one of the first and second output optical fibers via which the light signal received from the input optical fiber is output.

REFERENCES:
patent: 4778238 (1988-10-01), Hicks
patent: 5455704 (1995-10-01), Mizuochi et al.

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