Apparatus and process for termination of polymer optical fiber ribbons
In the present disclosure, a termination apparatus and process is disclosed that optimizes the termination of polymer optical fiber ribbons, eliminates the need for a ferrule and connector, and utilizes lower-cost materials instead of diamond for the cutting blade.
1. An apparatus for terminating a polymer optical fiber ribbon, comprising:
a rigid framework;
a cutting blade, wherein the cutting blade is mounted on a rotatable blade holder;
an electronically controllable motor, wherein the electronically controllable motor rotates the blade holder around a defined rotational axis;
a motorized translation stage, wherein the motorized translation stage is separately controlled to provide variable translation speed parallel to an axis of rotation of the blade holder; and
a collet, wherein the collet is fixed to the framework, and wherein the collet:
holds the optical fiber ribbon at a location such that the cutting blade passes through the optical fiber ribbon as the cutting blade rotates, and contains a channel, wherein the channel is threaded by the polymer optical fiber ribbon and comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 400 μm between any point on an inner surface of the channel and a nearest point on an outer surface of the polymer optical fiber ribbon.
2. The apparatus of claim 1 , wherein the motorized translation stage is separately controlled to provide variable translation speed anti-parallel to the axis of rotation of the blade holder.
3. The apparatus of claim 1 , wherein the channel comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 200 μm between any point on the inner surface of the channel and the nearest point on the outer surface of the polymer optical fiber ribbon.
4. The apparatus of claim 1 , wherein the channel comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 100 μm between any point on the inner surface of the channel and the nearest point on the outer surface of the polymer optical fiber ribbon.
5. The apparatus of claim 1 , wherein the channel comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 50 μm between any point on the inner surface of the channel and the nearest point on the outer surface of the polymer optical fiber ribbon.
6. The apparatus of claim 1 , wherein the channel comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 20 μm between any point on the inner surface of the channel and the nearest point on the outer surface of the polymer optical fiber ribbon.
7. The apparatus of claim 1 , wherein the channel comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 5 μm between any point on the inner surface of the channel and the nearest point on the outer surface of the polymer optical fiber ribbon.
8. The apparatus of claim 1 , wherein the cutting blade is comprised of a material with a Mohs hardness of at least about 7.
9. The apparatus of claim 2 , wherein the cutting blade is comprised of a material with a Mohs hardness of at least about 7.
10. The apparatus of claim 1 , wherein the cutting blade is comprised of a material with a Mohs hardness of at least about 8.
11. The apparatus of claim 2 , wherein the cutting blade is comprised of a material with a Mohs hardness of at least about 8.
12. The apparatus of claim 1 , wherein the cutting blade is comprised of a material with a Mohs hardness of at least about 9.
13. The apparatus of claim 2 , wherein the cutting blade is comprised of a material with a Mohs hardness of at least about 9.
14. The apparatus of claim 1 , wherein the cutting blade is comprised of a material selected from the group consisting of: diamond, cubic boron nitride, tungsten carbide, a ceramic, and a combination thereof.
15. The apparatus of claim 2 , wherein the cutting blade is comprised of a material selected from the group consisting of: diamond, cubic boron nitride, tungsten carbide, a ceramic, and a combination thereof.
16. The apparatus of claim 1 , wherein an angle between the rotational axis of the blade holder and a longitudinal axis of constituent fibers of the optical fiber ribbon is less than about 5 degrees.
17. The apparatus of claim 2 , wherein an angle between the rotational axis of the blade holder and a longitudinal axis of constituent fibers of the optical fiber ribbon is less than about 5 degrees.
18. The apparatus of claim 1 , wherein an angle between the rotational axis of the blade holder and a longitudinal axis of constituent fibers of the optical fiber ribbon is at least about 5 degrees.
19. The apparatus of claim 2 , wherein an angle between the rotational axis of the blade holder and a longitudinal axis of constituent fibers of the optical fiber ribbon is at least about 5 degrees.
20. A method for terminating a polymer optical fiber ribbon using an apparatus comprising a rigid framework, a cutting blade mounted on a rotatable blade holder, an electronically controllable motor, a motorized translation stage, and a collet, comprising:
securing the polymer optical fiber ribbon in the rigid framework using the collet, wherein the collet comprises a channel, wherein the channel is threaded by the polymer optical fiber ribbon and comprises dimensions and shape at an exit from the collet such that there is a gap of less than about 400 μm between any point on an inner surface of the channel and a nearest point on an outer surface of the polymer optical fiber ribbon;
passing the cutting blade, wherein the cutting blade is mounted on a rotatable holder, through the polymer optical fiber ribbon; and
moving the cutting blade holder as the cutting blade rotates, so that the cutting blade cuts at least one slice, wherein the at least one slice comprises a thickness of about 1 to 200 microns, from the surface of the polymer optical fiber ribbon.