Selectively pumping a gain-doped region of an optical fiber

Selectively pumping a gain-doped region of an optical fiber

  • CN 101,702,959 A
  • Filed: 02/05/2008
  • Published: 05/05/2010
  • Est. Priority Date: 02/05/2007
  • Status: Active Application
First Claim
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1. system comprises:

  • (A) optical fiber comprises;

    (A1) gain-doped region is used to guide high-rder mode, comprising;

    (A1a) have the core of first refractive index, described core is that rare earth (RE) mixes;

    (A1b) be positioned at the inner cladding of described core diameter to the outside, described inner cladding has second refractive index, and described second refractive index is less than described first refractive index, and described inner cladding is that rare earth (RE) mixes;

    And(A2) be positioned at the groove of inner cladding radially outer, described groove comprises pore, and described groove has the third reflect rate, and described third reflect rate is less than described second refractive index;

    (B) be optically coupled to the signal source of described optical fiber, described signal source is used for signal is transmitted into the described gain-doped region of described optical fiber;

    And(C) be optically coupled to the tandem type Raman resonator (CRR) of described optical fiber, described CRR is used for the described gain-doped region of the described optical fiber of pumping.

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