A bend-resistant multimode optical fiber
A multi-mode fiber, anti-bending technology, applied in the field of optical communication, can solve the problems of deteriorating fiber bandwidth and DMD performance, and achieve the effect of simple and convenient production control, high bandwidth performance, and reduced adverse effects
Active Publication Date: 2018-11-30
YANGTZE OPTICAL FIBRE & CABLE CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, if the sink structure is too deep, it will deteriorate the bandwidth and DMD performance of the fiber
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] Provide several detailed embodiments below, the present invention is described further.
[0044] Doping deposition is carried out on the inner wall of the fluorine-doped quartz glass liner by PCVD or MCVD process, and the reaction gas silicon tetrachloride (SiCl) is introduced into the tube. 4 ) and oxygen (O 2 ), and then into the fluorine-containing gas (C 2 f 6 ) and germanium tetrachloride (GeCl 4 ) to adjust the refractive index, the mass flow controller (MFC) is used to precisely control the gas flow throughout the process; the reaction gas in the liner is turned into plasma by microwaves, and finally deposited on the inner wall of the liner in the form of glass, and the first A sunken cladding layer, an inner cladding layer and a core layer; after the deposition is completed, the deposition tube is melted and shrunk into a solid mandrel with an electric heating furnace; the mandrel includes the core layer, the inner cladding layer, the first sunken cladding la...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a bending-resistant multimode fiber comprising a core layer and a cladding. The refractive index profile of the core is in [alpha] power exponent function distribution. The bending-resistant multimode fiber is characterized in that the cladding successively comprises, from inside to outside, an inner cladding, a first sunk cladding, a second sunk cladding, and an outer cladding; the core layer has a distribution index [alpha] from 1.9 to 2.2, a radius R1 from 23 to 27[mu]m, and a maximum relative index of refraction [delta]1 from 0.9 to 1.2%; the inner cladding has a radius R2, a unilateral radial thickness R2-R1 from 0 to 6.0[mu]m, a relative index of refraction difference [delta]2 from -0.3 to 0.03%; the first sunk cladding has a radium R3, a unilateral radial thickness R3-R2 from 2.5 to 6.0[mu]m, and a relative index of refraction difference [delta]3 from -0.6 to -0.2%; the second sunk cladding has a radium R4, a unilateral radial thickness R4-R3 from 6.0 to 10.0[mu]m, and a relative index of refraction difference [delta]4 from -0.3 to -0.2%; and the outer cladding is a pure silicon dioxide glass layer. The bending-resistant multimode fiber has excellent bending resistance and broad bandwidth performance.
Description
technical field [0001] The invention relates to a bending-resistant multimode optical fiber, which has excellent bending resistance and high bandwidth performance, and belongs to the technical field of optical communication. Background technique [0002] With the continuous development of science and technology, China has entered the era of rapid information development of optical fiber broadband and multi-service integration. The integrated telecommunication network, radio network and Internet can carry a variety of information services, and can provide users with various services such as making calls, surfing the Internet and watching TV. In particular, the introduction of concepts such as cloud computing and the Internet of Things in recent years has brought a tsunami-like data impact to existing networks. This will definitely speed up the construction and popularization of applications such as data centers, enterprise computer rooms, storage area networks (SAN), network...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/02G02B6/036
CPCG02B6/0288G02B6/03638
Inventor 黄荣王润涵陈刚王海鹰龙胜亚王瑞春
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD