OPTISTISK KOBLER FOR EN OPTISK FIBER.

摘要

An optical coupler 1 for use with an optical fibre 6 provided with a transparent buffer layer has a body member 2 of a hard transparent plastics material which is provided with a substantially U-shaped concavely curved surface 4 and a plunger member 9 reciprocatable relative to the body member for pressing an optical fibre located in a groove 5 extending along the surface against the body member such that the fibre is subjected to microbending. The microbending of the fibre markedly assists the amount of light which is transferres to or from the core of the bent portion of the fibre which is located in the groove when the optical coupler is used for introducing light into the core or withdrawing light from the core respectively.