Patent ID: 8837883
Filing Date: 2014-09-16
Classification: G02B

Abstract:
1. A system comprising: a laser system configured to emit collimated laser light; a beam shaping element configured to shape the laser light to yield an elliptical cross-section; a beam diverging element configured to diverge the laser light to yield a range of propagation angles with a maximum angle greater than zero; and one or more fiber coupling optics configured to direct the diverged laser light towards a spot of a cross-section of a fiber core of an optical fiber, a center point of the spot located at a distance away from a center point of the cross-section such that an edge of the spot is near to or at an edge of the cross-section, the maximum angle being equivalent to an angle corresponding to the numerical aperture of the optical fiber, a maximum diameter of the elliptical cross-section being longer than a diameter of the fiber core, and a minimum diameter of the elliptical cross-section being shorter than the diameter of the fiber core.