Multi-mode pumped ase source using phosphate and tellurite glasses
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United States of America Patent
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Issued Date -
Jun 10, 2004
app pub date -
Dec 6, 2002
filing date -
Dec 6, 2002
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Abandoned
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Abstract
A compact, high-power, low-cost broadband ASE source is achieved by multi-mode pumping a highly doped multi-component glass fiber in standard ASE source configurations. The multi-mode pump is coupled into and propagates in the fiber cladding exciting the rare-earth dopant ions (Er,Yb) in the fiber core. The multi-component glass includes a network former selected from either phosphate (P.sub.2O.sub.5) or tellurite (TeO.sub.2) and is doped with at least 0.25 weight percent rare-earth dopants. The high concentrations of dopants supported by these glasses absorbs the multi-mode pump in a short length, less than 100 cm, and provides high saturated output powers.
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