Optical fiber for light amplifier

C - Chemistry – Metallurgy – 03 – C

Patent

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Details

C03C 13/04 (2006.01) H01S 3/06 (2006.01) H01S 3/067 (2006.01) H01S 3/16 (2006.01) H01S 3/17 (2006.01)

Patent

CA 2346851

An optical fiber used for an optical amplifier, which is formed by doping glass with rare-earth ions. Both praseodymium ions (Pr+3) and erbium ions (Er+3) are used as the rare-earth ions, and the glass is a fluoride glass or a sulfide glass. The optical fiber can be used at both wavelengths of 1.3 µm and 1.55 µm. The light amplification efficiency of an optical amplifier made of the optical fiber can be improved compared to an optical amplifier formed of only Pr+3 or only Er+3.

Cette invention se rapporte à une fibre optique utilisée dans un amplificateur de lumière, qui est formée par dopage du verre avec des ions de terres rares. Des ions de praséodyme (Pr<+3>) et des ions d'erbium (Er<+3>) sont utilisés ensemble comme ions de terres rares et le verre utilisé est un verre fluoruré ou un verre sulfuré. Cette fibre optique peut être utilisée aux deux longueurs d'onde de 1,3 mu m et 1,55 mu m. L'efficacité d'amplification de la lumière d'un amplificateur optique fabriqué avec cette fibre optique peut être améliorée par rapport à un amplificateur optique formé uniquement de Pr<+3> ou uniquement d'Er<+3>.

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