Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1993-08-31
1995-02-21
Hellner, Mark
Optical: systems and elements
Optical amplifier
Optical fiber
H01S 306
Patent
active
053921534
ABSTRACT:
An amplifier is described which has a two stage arrangement in which the second stage is pumped with the pump signal not used in the first stage.
REFERENCES:
patent: 5253104 (1993-10-01), Delavaux
patent: 5260823 (1993-11-01), Payne et al.
patent: 5280383 (1994-01-01), Federici et al.
patent: 5283686 (1994-02-01), Huber
patent: 5287216 (1994-02-01), Chirravuri et al.
AT&T Corp.
Hellner Mark
Laumann Richard D.
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