Process for manufacturing a multi-core optical fibre and device for implementing this process

摘要

The invention relates to a MCVD-type fibre manufacturing process which enables multi-core optical fibres to be obtained by creating a partial vacuum inside the quartz tube 1 after deposition of cladding and core layers during the necking-down (diameter reduction). It furthermore relates to a device for implementing this process, including a member 26 for generating a partial vacuum using the Venturi effect. Application to the manufacture of optical fibres. <IMAGE>