The invention discloses a high-power
fiber mode stripper comprising a double-clad
fiber 1 and a packaging device 2. A
coating layer removing
fiber 4 is arranged in the middle of the double-clad fiber 1, a multistage
adhesive layer 3 is arranged on the
coating layer removing fiber 4, a
cooling chamber 6 is arranged in the packaging device 2, and the
coating layer removing fiber 4 is arranged in the
cooling chamber 6. The multistage
adhesive layer 3 is composed of
adhesive layer units different in
refractive index. Compared with the prior art, the high-power fiber mode stripper has the advantages that harmful light such as high-order mode light and residual pump light generated by light in fiber claddings can be effectively stripped through the multi-stage adhesive layer, heat converted from the harmful light is absorbed and brought out through cooling media in the packaging device,
bearing capacity of the mode stripper to high-power
laser light is improved greatly, and the mode stripper can bear hectowatt
laser light, and can be applied to a kilowatt-class or myriawatt-class
fiber laser. Meanwhile, safety of the fiber laseris improved to a great degree, and service life of the
fiber laser is prolonged greatly.