HIGH POWER SINGLE MODE FIBER LASER SYSTEM FOR WAVELENGTHS OPERATING IN 2 m RANGE

A high power fiber laser system is configured with a pump cascade and a laser cascade. The pump cascade includes a fiber amplifier provided with a MM core which is doped with ions of rare-earth element including either Er or Yb/Er. The MM core of fiber amplifier is configured with a double bottlenec...

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Bibliographische Detailangaben
Hauptverfasser: SHCERBINA, FEDOR, GAPONTSEV, VALENTIN, MASHKIN, ANDREI
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A high power fiber laser system is configured with a pump cascade and a laser cascade. The pump cascade includes a fiber amplifier provided with a MM core which is doped with ions of rare-earth element including either Er or Yb/Er. The MM core of fiber amplifier is configured with a double bottleneck-shaped cross section. The laser cascade has a fiber laser configured with a core which is doped with Tm ions. The pump light generated by the amplifier is coupled into the upstream end of the Tm laser.