INJECTION DEVICE FOR OPTICAL FIBRE AND PREPARATION METHOD

摘要

The invention concerns an injection device for optical fibre characterised in that it comprises a main fibre (100), and an auxiliary fibre (200) whereof the beveled end (210) is placed on the edge of the main fibre (10), wherein the auxiliary fibre (200) has a numerical aperture smaller than the numerical aperture of the main fibre (100). The invention also concerns a method for preparing the device.