Low-loss single-mode optical fiber applied to long-distance communication transmission and manufacture method thereof

Low-loss single-mode optical fiber applied to long-distance communication transmission and manufacture method thereof

  • CN 102,998,743 B
  • Filed: 01/05/2013
  • Issued: 04/01/2015
  • Est. Priority Date: 01/05/2013
  • Status: Active Grant
First Claim
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1. be adapted to a low-loss single-mode optical fiber for long haul communication transmission, it is characterized in that:

  • comprise fibre core, covering and coat;

    Fibre core is in optical fiber innermost layer, and fibre core outer setting has covering, and covering adopts silicon dioxide, surrounding layer sink and defines outer sagging covering, have outer sagging refractive index profile structure, its surrounding layer amplitude of sinking reaches 0.12% ±

    0.04%, and coat is outside at covering.

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