Optical fiber to rod lens joining method and interface...

Details Optical fiber to rod lens joining method and interface... Optical fiber to rod lens joining method and interface...

G - Physics

02

B

G02B 6/32 (2006.01)

Patent

CA 2062804

2062804 9101011 PCTABS00003 In order to make possible the provision of a good fusion joint with low optical losses between an optical fiber and a graded index (GRIN) glass rod lens with considerably larger diameter, the end of the GRIN lens to which the optical fiber is to be joined is tapered down radially the extent of at least one third the radius of the cylindrical lens at a considerably oblique angle. It is then possible to make a mechanically good fused joint with low transmission losses in the mid portion of the reduced-diameter end of the lens by heating the butt joint with an electric arc. The taper may be frusto-conical, convex or concave.

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