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Hermetically sealed optical fibre with voids or holes, method of its production, and its use

  • US 20040247271A1
  • Filed: 07/28/2004
  • Published: 12/09/2004
  • Est. Priority Date: 10/09/2001
  • Status: Active Grant
First Claim
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1. An optical fibre having an axial direction and a cross section perpendicular to said axial direction, said optical fibre comprising:

  • a first light guiding fibre portion having a cladding region with a plurality of spaced apart cladding voids extending longitudinally in the fibre axial direction and a core region bounded by said cladding region, and a solid light transparent fibre portion having a first end facing the first light guiding fibre portion by being attached thereto or by sharing a common solid background material, and a second end forming an end face of the optical fibre, said solid light transparent fibre portion providing a hermetic sealing of the cladding voids of the first light guiding fibre portion.

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