WE CLAIM
1. A holding device, comprising:
a male connector comprising a first male extension and a second male extension that extend out of opposite surfaces of a male central disk;
an electromagnetic guiding device continuously passing through a central hole that continuously passes through the first male extension, the male central disk and the second male extension;
a reflector that is in a direct physical contact with a first end of the electromagnetic guiding device that ends at a top surface of the first male extension; and
a holder that covers the first male extension to hold the reflector, and maintain the physical contact between the first end of the electromagnetic guiding device and the reflector.
2. The holding device of claim 1, wherein the first male extension and the second male extension are substantially rod shaped solid structures.
3. The holding device of claim 1, wherein the holder comprises a holder hole that receives the first male extension inside the holder hole.
4. The holding device of claim 1, wherein the holder hole has a shape based upon a shape of the first male extension.

5. The holding device of claim 1, wherein the holder comprises a holder disk that locks or sticks with the male central disk of the male connector.
6. The holding device of claim 5, wherein a bottom surface of the holder disk is soldered with a top surface of the male central disk.
7. The holding device of claim 1, wherein the shape of the holder is cylindrical, tapered cylindrical, or a combination of cylindrical and tapered cylindrical.
8. The holding device of claim 1, wherein the reflector comprises a retroreflector, a corner cube reflector, a chamfered corner cube reflector, a corner cube prism, a chamfered corner cube prism, a corner cube retroreflector, a chamfered corner cube retroreflector, a lens, or a cone.
9. The holding device of claim 1, wherein the reflector has an extension extending out from a hypothetical base of the reflector.
10. The holding device of claim 9, wherein the reflector and the extension are made of same material
11. The device of claim 9, wherein the reflector and the extension forms a single continuous structure without joints.

12. The holding device of claim 9, further comprising a reflector holder that receives the extension extending out of the hypothetical base of the reflector such that the reflector is outside the reflector holder.
13. The holding device of claim 12, wherein a shape of the reflector holder is cylindrical, tapered cylindrical, or a combination of a cylindrical and tapered cylindrical.
14. The holding device of claim 12, wherein a diameter of a bottom surface of the reflector holder is substantially similar to a diameter of the first male extension.
15. The holding device of claim 14, further comprising a mechanism that joins a bottom surface of the reflector holder to a top surface of the first male extension to make a physical contact between the first end of the electromagnetic guiding device and a base of the extension.
16. The holding device of claim 15, wherein the mechanism joins a bottom surface of the reflector holder to a top surface of the first male extension to align a principal optical axis of the reflector with a principal optical axis of the electromagnetic guiding device.
17. The holding device of claim 15, wherein the mechanism comprises gold brazing.

18. The holding device of claim 1, wherein a top surface of the holder comprises a depression to place the reflector.
19. The holding device of claim 18, wherein the reflector is bonded to a top surface of the depression using a preform.
20. The holding device of claim 18, wherein the reform is a glass to metal sealing.
21. A holding device, comprising:
a reflector comprising an extension extending out of a hypothetical base of the reflector;
a reflector holder that receives the extension extending out of the hypothetical base of the reflector;
a male connector comprising a first male extension and a second male extension that extend out of opposite surfaces of a male central disk;
an electromagnetic guiding device continuously passing through a central hole that continuously passes through the first male extension, the male central disk and the second male extension; and
a mechanism that joins a bottom surface of the reflector holder to a top surface of the first male extension to make a physical contact between a first end of the electromagnetic guiding device and a base of the extension.

22. The device of claim 21, wherein the mechanism substantially aligns a principal optical axis of the reflector to a principal optical axis of the electromagnetic guiding device.