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Integrated optical coupler and connector

  • US 4,881,789 A
  • Filed: 05/26/1988
  • Issued: 11/21/1989
  • Est. Priority Date: 05/26/1988
  • Status: Expired due to Term
First Claim
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1. An optical fiber coupler comprising:

  • three separate ferrules formed from a continuous glass capillary tube having a capillary bore of suitable diameter for receiving optical fibers;

    said three ferrules including first and second end ferrules and a middle ferrule, said middle ferrule having a removed window portion exposing a portion of its capillary bore and two ferrule coupling ends on both sides of said removed window portion;

    an optical fiber mounted in the capillary bore of the middle ferrule;

    beamsplitter means inserted in said optical fiber at a position exposed by said removed window portion of said middle ferrule;

    an optical element coupled to the window portion of said middle ferrule so as to be in optical communication with said beamsplitter means; and

    coupling alignment means for coupling and aligning said two ferrule coupling ends of said middle ferrule to said first and second end ferrules when optical fibers are mounted in said first and second end ferrules.

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