COUPLING SYSTEM BETWEEN AN OPTICAL FIBRE AND AN OPTICAL DEVICE

摘要

Coupling system between an optical waveguide (1) and an optical device (8) suitable for receiving and/or transmitting an optical beam having a first maximum MFR, comprising a single-mode optical fibre (1) having at one end a portion (10) of its core (2) expanded with a second MFR. An aspherical lens (6) is formed on said end of the fibre (1). Said aspherical lens comprises a pair of inclined surfaces (41, 42) which intersect on a line, generating an edge, in a position substantially corresponding to the centre of said core (2), said edge is rounded to form an aspherical profile.