Multimode optical fiber and method for manufacturing same

Multimode optical fiber and method for manufacturing same

  • CN 1,825,147 A
  • Filed: 02/22/2006
  • Published: 08/30/2006
  • Est. Priority Date: 02/22/2005
  • Status: Active Application
First Claim
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1. the method for the ripple in the index distribution that reduces multimode optical fiber, this method comprises the steps:

  • (a) provide base material;

    (b) along base material gaseous mixture is flowed, described gaseous mixture comprises O 2, gaseous state silicon-containing compound, gaseous state contain dopant compound and N 2O;

    (c) along the base material moving heat source, so that silicon-containing compound and contain dopant compound and form the oxide powder dust particle, wherein this dust granules deposits on base material as first dust layer that mixes;

    (d) by regulating the O that flows along base material 2, gaseous state silicon-containing compound, gaseous state contain dopant compound and N 2The consumption of one or more among the O comes the adjustments of gas potpourri;

    With (e) along the base material moving heat source, so that silicon-containing compound and contain dopant compound and form oxide powder dust particle in the gaseous mixture of being regulated with different dopant concentration, the dust granules that wherein has different dopant concentration is deposited on first glassy layer that mixes that is formed by first dust layer that mixes as second dust layer that mixesWherein, when thermal source when base material moves, the dust layer of deposition is sintered in advance, to form glassy layer.

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