Pumping under the high-order mode substantially identical with signal mode

Pumping under the high-order mode substantially identical with signal mode

  • CN 101,688,944 B
  • Filed: 02/05/2008
  • Issued: 03/30/2016
  • Est. Priority Date: 02/05/2007
  • Status: Active Grant
First Claim
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1. a fiber laser, comprising:

  • Signal source;

    For propagating the gain-doped fibers of high-order mode signal, described gain-doped fibers comprises core, and described core is by gain-doping, and described gain-doped fibers also comprises inner cladding, described inner cladding is by gain-doping, and described gain-doped fibers is optically coupled to described signal source;

    Pumping source, described pumping source is optically coupled to described gain-doped fibers;

    AndWrite the long-period gratings in described gain-doped fibers, this long-period gratings is configured to fundamental signal to be transformed to high-order mode, and this long-period gratings is also configured to basic mode pump light to be transformed to described high-order mode.

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