Hybrid ferrule and fiber optical test device

• US 9,366,830 B2
• Filed: 10/16/2013
• Issued: 06/14/2016
• Est. Priority Date: 02/28/2013
• Status: Active Grant

• Current Assignee: Uab Lifodas
• Original Assignee: Uab Lifodas
• Inventors: Levin, Piotr Anatolij
• Primary Examiner(s): Radkowski, Peter
• Application Number:
  US14/055,815
• Publication Number:
  US 20140241668A1
• Time in Patent Office: 972 Days
• Field of Search: 385/60, 385/78
• US Class Current: 1/1
• CPC Class Codes: G02B 6/3818 of a low-reflection-loss type G02B6/3813 takes precedence
• CPC Class Codes: G02B 6/3863 fabricated by using polishing techniques grinding of the fibre ends B24B19/226
• CPC Class Codes: G02B 6/3885 Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type optical ribbon cable G02B6/4403, G02B6/448

Abstract

The present invention is a hybrid ferrule which is able to be connected to both, angle polished and flat polished, MPO connectors; a test device including the above mentioned hybrid ferrule; and a test kit, including the above mentioned test device with hybrid ferrule. The hybrid ferrule of the present invention includes first, second, and third surfaces which are designed in a special way to ensure the high quality connection with SM or MM type connectors. A hybrid fiber connector having an integrated end, a connection end, two sides, a flat center, and an optical fiber embedded in the flat center parallel to and halfway between the two sides. The connection end includes left and right edges and first, second, and third surfaces. The first surface angles upward from said left edge of said connection end to a first point, the second surface extends flat between the first point and a second point, and a third surface angles downward between the second point and the right edge of said connection end.

Claims

1. A hybrid ferrule capable of being connected to both angle polished and flat polished MPO connectors, wherein said hybrid ferrule comprises:

an integrated end;

a connection end;

two sides;

a flat center bounded by said integrated end, said connection end, and said two sides; and

an optical fiber embedded in said flat center parallel to and halfway between said two sides, wherein said optical fiber comprises a cladding, a core, and a fiber end at said connection end;

wherein said connection end comprise a left edge, a right edge, a first surface, a second surface and a third surface;

wherein said first surface angles upward in a non-curved line from said left edge of said connection end to a first point;

wherein said second surface extends flat in a straight line between said first point and a second point and is perpendicular to said two sides and said optical fiber;

wherein said third surface angles downward in a non-curved line between said second point and said right edge of said connection end; and

wherein both of said first surface and said second surface of said connection end are disposed to the left of a leftmost edge of said cladding of said optical fiber where said cladding intersects said connection end.

2. The hybrid ferrule as claimed in claim 1, wherein said first surface of said connection end angles upward so as to accommodate an angle polished ferrule.

3. The hybrid ferrule as claimed in claim 2, wherein said first surface of said connection end angles upward at substantially 8°

.

4. The hybrid ferrule as claimed in claim 1, wherein said third surface of said connection end angles downward between 2 and 12°

.

5. The hybrid ferrule as claimed in claim 4, wherein said third surface of said connection end angles downward at substantially 8°

.

6. The hybrid ferrule as claimed in claim 1, wherein said core of said optical fiber is substantially 0.0625 mm.

7. A hybrid ferrule able to be connected to both angle polished and flat polished MPO connectors, wherein said hybrid ferrule comprises:

an integrated end;

a connection end;

two sides;

a flat center bounded by said integrated end, said connection end, and said two sides;

an optical fiber embedded in said flat center parallel to and halfway between said two sides, wherein said optical fiber comprises a cladding, a core, and a fiber end at said connection end;

an angled first surface disposed on said connection end in a non-curved line;

a flat second surface disposed on said connection end, wherein said second surface is perpendicular to said two sides and said optical fiber; and

an angled third surface disposed on said connection end in a non-curved line;

wherein both of said first surface and said second surface of said connection end are disposed to the left of a leftmost edge of said cladding of said optical fiber where said cladding intersects said connection end.

8. The hybrid ferrule as claimed in claim 7, wherein unwanted light reflections are avoided when said hybrid ferrule is connected to an angle polished MPO connector through said first surface.

9. The hybrid ferrule as claimed in claim 7, wherein unwanted light reflections are avoided when said hybrid ferrule is connected to a flat polished MPO connector through said second surface.