Apparatus and method for terminating an array of optical fibers
A method for terminating a plurality of optical fibers arranged in a two-dimensional arrangement comprises inserting the plurality of optical fibers into and through a fiber ferrule, where the fiber ferrule has a plurality of parallel channels extending from an entry surface through to a polish surface; polishing the polish surface including an end of each of the plurality of optical fibers to form a coplanar surface at a polish angle relative to a reference plane perpendicular to the parallel channels; and affixing a glass plate to the polish surface.
1. A termination assembly comprising:
a fiber ferrule having a plurality of channels extending from an entry surface through to a polishing surface, wherein the plurality of channels are arranged in a two-dimensional arrangement;
a plurality of optical fibers, each of the plurality of optical fibers extending through one of the plurality of channels of the fiber ferrule, each of the plurality of optical fibers parallel to one another, each of the plurality of optical fibers having an end coplanar with the polishing surface of the fiber ferrule and coplanar with an end of each other of the plurality of optical fibers;
a wedge plate having a mating surface and an emergent surface, wherein the wedge plate has a wedge angle between the mating surface and an emergent surface; and
an affixing agent disposed between and affixing the polishing surface of the fiber ferrule to the mating surface of the wedge plate,
wherein the termination assembly is configured such that optical signals from the plurality of optical fibers emerge from the emergent surface of the wedge plate at a non-zero angle relative to an original path of the plurality of optical fibers.
2. The termination assembly of claim 1 , wherein the polishing surface of the fiber ferrule is at a polishing angle relative to a reference plane perpendicular to the plurality of optical fibers.
3. The termination assembly of claim 2 , wherein the polishing angle is greater than 0 degrees.
4. The termination assembly of claim 1 , wherein the wedge plate is formed from silica glass, and wherein the plurality of optical fibers are formed from silica glass.
5. The termination assembly of claim 1 , wherein the polishing angle is 8 degrees, and the wedge angle is approximately 15 degrees.
6. The termination assembly of claim 1 , wherein an apparent fiber emitting plane is tilted relative to the reference plane.
7. The termination assembly of claim 1 , wherein a refractive index of the affixing agent is approximately the same as that of the plurality of optical fibers.
8. The termination assembly of claim 7 , wherein a refractive index of the wedge plate is approximately the same as that of the plurality of optical fibers.
9. The termination of assembly of claim 1 , wherein the affixing agent is ultra-violet epoxy.
10. The termination of claim 1 , wherein the fiber ferrule and the plurality of optical fibers collectively form a two-dimensional fiber array.
11. The termination of claim 1 , wherein the plurality of channels are arranged in an N-by-M arrangement, where neither N nor M is equal to one.