We have demonstrated the measurements of attenuation constant of a multi-mode fiber (300μm core diameter and 1km length) at 1070nm. The observed attenuation constant was below 0.7dB/km. The laser power of 5kW was coupled into the 1km fiber at 1070nm. The overall transmittance was 85 %. We observed the first Raman stokes in the transmitted laser spectrum. We demonstrated concrete cutting with a 4kW fiber laser at 1070nm. The demonstrated slab thickness was 100mm. This technique can be extended to thick concrete slabs more than 1m without laser power increasing.


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    Title :

    Concrete cutting using high-power fiber laser


    Contributors:

    Conference:

    Laser Beam Control and Applications ; 2006 ; San Jose,California,United States


    Published in:

    Publication date :

    2006-02-16





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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