Joining optical waveguides, e.g. glass fibres - using liquid filled capillary tube, which aligns fibres due to its viscosity

摘要

Optical waveguides, e.g. glass fibres, are joined to each other or to appts. such as transmitters, amplifiers, receivers, etc., using a splicing bush or tube made of metal, plastic or glass, the bore of the tube having a larger dia. than the outer diameters of the fibres being joined together. The bore of the splicing tube is filled with an immersion liq. having a viscosity such that when the fibres are inserted in the tube they are centered w.r.t. each other, i.e. the two fibres are on a common axis so that the cores of both are properly aligned.