公开(公告)号：DE69911593D1

公开(公告)日：2003-10-30

申请号：DE69911593

申请日：1999-04-09

Applicant: CORNING INC CORNING

Inventor： BEGUIN M ,  PARIS BERTRAND ,  SCOTTA FELICE

IPC: B23K26/06 ,  G02B6/255 ,  G02B6/30 ,  G02B27/09

Abstract: A fusion joint between a waveguide (1a) and an optical fiber (2) is created by irradiating the interface (4) between the optical fiber and the waveguide using a laser beam. The spatial distribution of the energy furnished to the interface presents a central zone of which the energy is reduced with respect to a peripheral zone, whereby to enable a relatively high energy laser to be used while avoiding bending of the waveguide. The laser beam is caused to irradiate a higher energy density upon the waveguide than the optical fiber, typically by offsetting the center of the laser beam towards the waveguide. The fusion is performed while a force F urges the waveguide and optical fiber towards one another, so as to avoid the creation of a void at the boundary. A supplementary polymer or mineral joint can be provided. A method for multi-fiber fusion pigtailing more than a single optical fiber to respective waveguiding regions in a planar waveguide includes using a diffractive optical element (130) to produce a multiple energy distribution.