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Hybrid Erbium-Doped Fiber for Gain Flattened Operation

✍ Scribed by Anders Bjarklev

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
122 KB
Volume
3
Category
Article
ISSN
1068-5200

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✦ Synopsis

A new hybrid erbium-doped-fiber design is proposed for amplifiers with flattened gain spectra. The design prescribes different parts of the erbium-doped fiber core to be codoped with different materials. Due to specific relations between the codopant material and their emission and absorption spectra, the hybrid-fiber design makes use of opposite gain tilts to cancel out each other. Numerical results indicate equally good gain flattening properties as competing methods, and in addition to this improved stability towards longitudinal pump power redistribution is predicted.

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