US 11,685,686 B2
Apparatus for optical fiber manufacturing process
Hen-Tai Shang, Miao-Li County (TW); Kuei-Huang Chou, Miao-Li County (TW); Zhao-Ying Chen, Miao-Li County (TW); and Chiao-Ling Chen, Miao-Li County (TW)
Assigned to Prime Optical Fiber Corporation, Miao-Li (unknown)
Filed by Prime Optical Fiber Corporation, Miao-Li County (TW)
Filed on Jun. 18, 2021, as Appl. No. 17/352,090.
Prior Publication US 2022/0402802 A1, Dec. 22, 2022
Int. Cl. C03B 37/012 (2006.01); G02B 6/38 (2006.01)
CPC C03B 37/01222 (2013.01) [C03B 37/01257 (2013.01); C03B 37/01262 (2013.01); G02B 6/3833 (2013.01)] 11 Claims
OG exemplary drawing
 
1. 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 first dopant providing container comprises:
a plurality of channel tubes, arranged in parallel to one another, and used to contain the first 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.