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FIBER HOLDER AND FIBER LASER APPARATUS

  • US 20120301097A1
  • Filed: 05/23/2012
  • Published: 11/29/2012
  • Est. Priority Date: 05/26/2011
  • Status: Active Grant
First Claim
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1. A fiber holder for holding an optical fiber used in a fiber laser apparatus, the fiber holder comprising:

  • a fiber accommodation portion configured to accommodate the optical fiber, the fiber accommodation portion being defined by a main surface on which a helical groove is provided;

    an axial member fixed to the main surface so as to pass through a center axis of the helical groove; and

    a cover which covers at least a portion of the main surface that is within an outermost circumference of the helical groove,the cover having a central aperture into which the axial member is inserted so as to allow the cover to rotate about the axial member, andthe cover having a cutout that intersects the helical groove from the outermost circumference of the helical groove and extends to an innermost circumference of the helical groove.

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