Yb-doped fiber laser operating near EDFA absorption band

Details Yb-doped fiber laser operating near EDFA absorption band Yb-doped fiber laser operating near EDFA absorption band

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.

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