Optical terminator
View Patent ↗The disclosure relates to an optical terminator device suitable for terminating high energy optical signals. The device includes a heat sink cap having an internal surface. An optical absorbing layer is positioned on the internal surface of the heat sink cap. A scattering core having a fiber or waveguide connection is positioned within the heat sink cap such that a thermal barrier is maintained between the optical absorbing layer and the scattering core.
1. An optical terminator for absorbing high power optical energy traveling along a fiber or waveguide, comprising:
a scattering core that receives the high power optical energy at an end of the scattering core and scatters the high powered optical energy along a length of the scattering core within the optical terminator;
an absorbing layer at least partially surrounding the scattering core to absorb the high power optical energy scattered by the scattering core; and
a thermal barrier between the scattering core and the surrounding absorbing layer.
2. The optical terminator of claim 1 further including a heat sink for the absorbing layer.
3. The optical terminator of claim 1 wherein the thermal barrier is an air barrier.
4. The optical terminator of claim 1 wherein the absorbing layer absorbs optical energy of a broad spectrum of wavelengths.
5. The optical terminator of claim 1 as presented in a connector configuration.
6. The optical terminator of claim 1 as presented in a plug configuration.
7. The optical terminator of claim 1 as presented in a bare fiber, in line connection configuration.
8. The optical terminator of claim 1 as presented in a waveguide, in line connection configuration.
9. The optical terminator of claim 1 as presented in an in line configuration with an angled splice connection.
10. The optical terminator of claim 1 wherein the scattering core comprises a fiber fuse-type core.
11. The optical terminator of claim 1 wherein the scattering core comprises a filled capillary-type core.
12. The optical terminator of claim 1 wherein the scattering core comprises an enlarged-type core.
13. The optical terminator of claim 1 as presented in an in line configuration with a tapered splice connection.
14. The optical terminator of claim 1 wherein the scattering core comprises an enlarged-type core having an angled end.
15. The optical terminator of claim 14 as presented in an in line configuration with an angled splice connection to the enlarged-type core.
16. The optical terminator of claim 1 wherein the scattering core comprises an enlarged-type core with a conical shape.
17. The optical terminator of claim 16 wherein the enlarged-type core with the conical shape is an extended fiber.
18. The optical terminator of claim 1 wherein the absorbing layer includes an angled absorbing face.
19. The optical terminator of claim 1 further including an axial distance adjustment mechanism for selectively choosing an axial distance relationship between the scattering core and the absorbing layer.
20. An optical terminator, comprising:
a heat sink cap having an internal surface;
an optical absorbing layer on the internal surface of the heat sink cap;
a fiber having a scattering core and a transparent cladding, the fiber being positioned within the heat sink cap such that a thermal barrier is maintained between the optical absorbing layer and the cladding of the fiber.
21. The optical terminator of claim 20 further including an axial distance adjustment mechanism for selectively choosing an axial distance relationship between the fiber and the optical absorbing layer.
22. The optical terminator of claim 20 wherein the fiber includes a splice for in line connection to another fiber.
23. The optical terminator of claim 22 wherein the splice is an angled splice.
24. The optical terminator of claim 22 wherein the splice is positioned within the heat sink cap.
25. The optical terminator of claim 22 wherein the splice includes a funnel region.
26. The optical terminator of claim 20 wherein the optical absorbing layer on a surface of the heat sink cap adjacent an end of the fiber is angled.
27. The optical terminator of claim 20 wherein the fiber within the heat sink cap has a conical shape.
28. An optical terminator, comprising:
a heat sink cap having an internal surface;
an optical energy absorbing layer on the internal surface of the heat sink cap for absorbing optical energy;
a scattering core for scattering the optical energy;
a transparent cladding on the scattering core; and
a thermal barrier positioned between the optical energy absorbing layer and the transparent cladding.