Coherent light generators – Optical fiber laser
Patent
1998-04-10
2000-10-24
Font, Frank G.
Coherent light generators
Optical fiber laser
372 6, 372 18, 385 31, H01S 330, H01S 3098, G02B 626
Patent
active
061378135
ABSTRACT:
A Yb-doped fiber laser uses a homogeneously-broadened material. The disclosed laser design is particularly advantageous for operating the fiber laser between 970-980 nm and using this output as a pump for an Er-doped fiber amplifier (EDFA) having an absorption band between 970-990 nm. Using a homogeneously-broadened host glass, for example alumino-germano-silicate or fluoride glass, significantly reduces the inefficiency that can result from the three-level nature of Yb-doped fiber laser transitions that are required for operating it at approximately 976 nm.
REFERENCES:
patent: 5659644 (1997-08-01), DiGiovanni et al.
patent: 5953353 (1999-09-01), Headley et al.
patent: 5956354 (1999-09-01), Yan
patent: 5991314 (1999-11-01), Ionov et al.
Ionov Stanislav I.
Jones Dennis C.
Flores Ruiz Delma R.
Font Frank G.
Gudmestad Terje
Hughes Electronics Corporation
Sales M. W.
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