Apparatus for optical fiber manufacturing process

An apparatus for optical fiber manufacturing process, comprising:

• a raw material providing structure;
• a dopant providing structure, configured to be disposed at a downstream side of the raw material providing structure and be in communication with the raw material providing structure, further comprising:
• an outer tube,
• a first inner tube, configured to be disposed in the outer tube;
• a first dopant providing container, configured to be disposed in the first inner tube for providing a first dopant material;
• a second inner tube, configured to be disposed in the outer tube at a downstream side of the first inner tube;
• and
• a second dopant providing container, configured to be disposed in the second inner tube for providing a second dopant material;
• and a preform forming base tube, configured to be disposed at a downstream side of the dopant providing structure;
• wherein the second dopant providing container comprises:
• a plurality of channel tubes, arranged in parallel to one another, and used to contain the second dopant material;
• two connecting elements, configured to be respectively disposed at two ends of the channel tubes, the two connecting elements being formed with a plurality of communication pathways, and the communication pathways being used to communicate with the channel tubes to form a gas channel;
• and
• two end elements, arranged to be respectively arranged outside the two connecting elements, and the two end elements being disposed with gas outlets.