摘要 |
A coupling arrangement according to the present invention comprises a target fiber, at least one feeding fiber and an intermediate fiber. The intermediate fiber comprises an input end and a converging taper portion, wherein the input end of the intermediate fiber is spliced to an output end of the feeding fiber in an axial way. Due to this coupling electromagnetic radiation being fed through the feeding fiber enters the intermediate fiber through its input end surface. The converging taper portion of the intermediate fiber is fused to the target fiber in the transfer region in a non-axial way. This leads to a non-axial coupling such that electromagnetic radiation, which entered the intermediate fiber through the input end surface thereof, is coupled into the target fiber.
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