Method for polishing fiber optic ferrules

  • US 5,458,528 A
  • Filed: 06/28/1994
  • Issued: 10/17/1995
  • Est. Priority Date: 06/25/1993
  • Status: Expired due to Fees
First Claim
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1. A method of preparing a ferrule for a fiber optic connector, comprising the steps of:

  • obtaining a ferrule having a distal end with a chamfer surface, the ferrule also having a central bore for receiving an optical fiber; and

    imparting a spherical end face to the distal end of the ferrule, adjacent the chamfer surface, the spherical end face having a periphery which is inclined with respect to a plane normal to the bore, defining an angle of inclination, the spherical end face further having a tangent at the bore which is parallel with the angle of inclination, said imparting step being accomplished byforming a fiat surface at the distal end of the ferrule, oriented with respect to the normal plane of the bore at the angle of inclination, andpolishing the fiat surface against a compliant pad while maintaining the ferrule at an oblique angle with respect to the pad, the oblique angle being greater than the angle of inclination.

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