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Method and apparatus for attaching an optical fibre to an optical device

  • US 20020071636A1
  • Filed: 07/27/2001
  • Published: 06/13/2002
  • Est. Priority Date: 11/28/2000
  • Status: Abandoned Application
First Claim
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1. A method of fabricating an optical fibre alignment structure for aligning and optically coupling an end of an optical fibre to a planar optical device, said method comprising the steps of:

  • (a) forming a sacrificial structure of a predetermined shape on a surface of a planar substrate, wherein the predetermined shape is chosen to be an inversion of a desired shape of the alignment structure to be fabricated;

    (b) fabricating the optical device on the substrate such that the sacrificial structure faces a waveguide portion of the optical device;

    (c) etching an optical fibre insertion aperture into said substrate such that the optical fibre insertion aperture is aligned substantially underneath the sacrificial structure; and

    (d) selectively etching said sacrificial structure so as to form a region shaped to receive and align an end of an optical fibre, whereby the alignment structure of the desired shape is fabricated.

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