Optical slip ring arrangement
A slip ring arrangement is simple to produce for contactless data transmission for high-frequency data signals, wherein two optical components are provided which are rotatable relative to one another about a common axis of rotation. The first optical component has a plurality of optical fibers which are disposed along at least one circular arc segment having a radius on a first end face. For this purpose the fibers are guided in a first carrier which has a coupling surface to which a first planar optical waveguide chip configured as a combiner is coupled.
1. An optical slip ring configuration for non-contact data transmission, comprising:
a first optical component having a first carrier, a first end face, and a rear coupling face;
a second optical component having a second end face, said first and second optical components being rotatable with respect to one another about a common axis of rotation, and for this purpose, are disposed opposite one another via said first end face and said second end face;
said first optical component further having a plurality of optical fibers with fiber ends disposed at said first end face along at least one arc segment having a radius, said optical fibers being routed in said first carrier extending from said first end face to said rear coupling face on a rear side, and on said first end face, said optical fibers are disposed running along a circular arc having a radius;
a first planar optical waveguide chip coupled to said rear coupling face and having inputs; and
at least three of said plurality of said optical fibers in said first carrier transferred from said first end face to said rear coupling face in at least one common connection plane such that at least three of said plurality of said optical fibers have fiber ends at said rear coupling face disposed along at least one line, and such that said inputs of said planar optical waveguide chip are optically coupled to said fiber ends at said rear coupling face.
2. The optical slip ring configuration according to claim 1 , wherein said first planar optical waveguide chip is configured as a combiner having a first common output, wherein said plurality of said optical fibers are brought together to said first common output.
3. The optical slip ring configuration according to claim 1 , further comprising at least one additional fiber routed in said first carrier which terminates at a first front side lying on the axis of rotation.
4. The optical slip ring configuration according to claim 3 , wherein said at least one additional fiber is a central fiber routed to said rear coupling face and coupled to said first planar optical waveguide chip.
5. The optical slip ring configuration according to claim 4 , wherein said first planar optical waveguide chip has a loop-through path which is associated with said central fiber.
6. The optical slip ring configuration according to claim 1 , wherein said optical fibers have said fiber ends adjacent to one another at said first end face.
7. The optical slip ring configuration according to claim 1 , wherein said optical fibers have said fiber ends disposed on said first end face adjacent to one another in a semicircular manner.
8. The optical slip ring configuration according to claim 1 , further comprising an optical waveguide pattern with gradient-index waveguides being integrated into said first planar optical waveguide chip.
9. The optical slip ring configuration according to claim 1 , wherein said second optical component has a structure which is identical to that of said first optical component.
10. The optical slip ring configuration according to claim 1 , wherein said second optical component has at least one optical waveguide which is spaced apart from the axis of rotation by a radius at said second end face.
11. The optical slip ring configuration according to claim 1 , wherein said second optical component has a central conductor which terminates at said second end face lying on the axis of rotation.
12. The optical slip ring configuration according to claim 1 , wherein said second optical component is configured as a second carrier having at least one fiber routed therein as an optical waveguide.
13. The optical slip ring configuration according to claim 1 , wherein said second optical component includes at least a second planar optical waveguide chip which has at least one optical waveguide.
14. The optical slip ring configuration according to claim 13 , wherein said second planar optical waveguide chip is configured as a 1×2 splitter and has a common input which splits into two optical waveguides terminating at said second end face.
15. The optical slip ring configuration according to claim 14 , wherein said second optical component has a third planar optical waveguide chip, said second and third planar optical waveguide chips each have a surface having an integrated optical waveguide pattern, said second and third planar optical waveguide chips form said second optical component with said surfaces facing one another.
16. The optical slip ring configuration according to claim 3 , wherein said at least one additional fiber is a central fiber.
17. The optical slip ring configuration according to claim 1 , further comprising an additional group of optical fibers which are disposed on a first front side along an additional circular arc.
18. The optical slip ring configuration according to claim 17 , wherein said additional group of optical fibers are routed to said coupling face and coupled to said first planar optical waveguide chip.
19. The optical slip ring configuration according to claim 1 , wherein said fiber ends, of said at least three of said plurality of optical fibers, which are at said first end face, are disposed along said at least one arc segment.
20. The optical slip ring configuration according to claim 1 , wherein all of said plurality of optical fibers with fiber ends are disposed at said first end face along said at least one arc segment having a radius.