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Method for producing reflective taps in optical fibers and applications thereof

  • US 4,923,273 A
  • Filed: 12/19/1988
  • Issued: 05/08/1990
  • Est. Priority Date: 10/13/1987
  • Status: Expired due to Term
First Claim
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1. A reflectively tapped delay line signal processing device with fixed tap weights where the taps are formed by:

  • preparing one end of a first optical fiber by cleaving or polishing;

    placing said first fiber in a vacuum system;

    coating the prepared end of the first fiber with a material having dissimilar refractive properties than said fiber;

    fusing the coating, prepared end of the first fiber with the end of a second fiber until the reflectivity of the fused region reaches a desired value.

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