Apparatus for alignment of a multicore fiber in a multifiber connector and method of using same

Patent metadata

Field	Value
Publication number	US-9568684-B2
Application number	US-201615160800-A
Country	US
Kind code	B2
Filing date	May 20, 2016
Priority date	Mar 28, 2013
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A multicore fiber alignment apparatus is described, having a chassis into which is mounted ferrule-holding means for holding a multicore fiber ferrule having one or more capillaries extending therethrough. Fiber-holding means for holding one or more multicore fibers in position to be mounted into the ferrule, such that each multicore fiber extends through a respective ferrule capillary. Means are provided for monitoring the rotation angle of each multicore fiber within its respective capillary, relative to a reference rotational orientation. Means are further provided for rotating each of the multicore fibers within its respective capillary. The rotational orientation of each multicore fiber is fixed when its rotation angle is equal to zero.

First claim

What is claimed is:

1. A multicore fiber alignment apparatus, comprising:
a chassis into which is mounted
ferrule-holding means for holding a multicore fiber ferrule having one or more capillaries extending therethrough;
fiber-holding means for holding one or more multicore fibers in position to be mounted into the ferrule, such that each multicore fiber extends through a respective ferrule capillary;
means for monitoring the rotational orientation of each multicore fiber within its respective capillary, relative to a reference rotational orientation;
means for rotating each of the multicore fibers within its respective capillary; and
means for fixing the rotational orientation of each multicore fiber when its angular rotation is aligned with the reference rotational orientation, within a selected tolerance.

2. The apparatus of claim 1 ,
wherein the means for monitoring the rotational orientation of each multicore fiber comprises a camera that collects visual data with respect to the core orientation at the fiber endface.

3. The apparatus of claim 1 ,
wherein the means for rotating each of the multicore fibers comprises an indexing wheel.

4. The apparatus of claim 3 ,
further comprising a driving wheel for rotating the indexing wheel.

5. The apparatus of claim 3 ,
wherein the position of the indexing wheel is adjustable, such that when each multicore fiber is rotated, the axis of rotation of the indexing wheel is parallel to the axis of the multicore fiber.

6. The apparatus of claim 1 ,
wherein the means for fixing the position of each multicore fiber comprises a suction assembly, in which the rotational orientation of the fibers is maintained by applying a suction to each individual multicore fiber.

7. The apparatus of claim 6 ,
wherein the suction assembly comprises a block with an array of channels corresponding to the one or more multicore fibers,
wherein each channel is provided with one or more conduit openings for applying a suction to a fiber seated within the channel.

8. The apparatus of claim 1 ,
wherein the means for fixing the rotational orientation of each multicore fiber is configured to maintain the rotational orientation of each multicore fiber until an adhesive applied to the multicore fiber is cured so as to permanently fix its rotational orientation.

Assignees

• Ofs Fitel Llc

Inventors

• Bradley Kelvin B
• Czosnowski Wladyslaw
• Kremp Tristan
• Liang Yue

Classifications

• G02B6/3885 Primary

  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) · CPC title

• G02B6/385

  Accessories for testing or observation of connectors (means for centering or aligning the light guide within the ferrule with auxiliary facilities for movably aligning or adjusting the fibre within its ferrule, measuring position, eccentricity G02B6/3843; mechanical features associated with the optical testing of optical fibres G01M11/088) · CPC title

• G02B6/3861

  Adhesive bonding (adhesives in general C09J) · CPC title

• G02B6/3843 Primary

  with auxiliary facilities for movably aligning or adjusting the fibre within its ferrule, e.g. measuring position or eccentricity (testing the alignment of axes, including eccentricity, G01B11/27) · CPC title

• G02B6/02042

  Multicore optical fibres · CPC title