公开(公告)号：US08184936B2

公开(公告)日：2012-05-22

申请号：US12839396

申请日：2010-07-19

申请人： Fanghai Zhang ,  Beibei Cao ,  Qingrong Han ,  Raadjkoemar Matai

发明人： Fanghai Zhang ,  Beibei Cao ,  Qingrong Han ,  Raadjkoemar Matai

IPC分类号： G02B6/28 ,  G02B6/02

CPC分类号： G02B6/03633 ,  G02B6/0286 ,  G02B6/0288 ,  G02B6/03638 ,  G02B6/0365

摘要： A multimode fiber including a core and a cladding. The core has a radius (R1) of 24-26 μm, the refractive index profile thereof is a parabola, and the maximum relative refractive index difference (Δ1) is 0.9-1.1%. The cladding surrounds the core and includes from inside to outside an inner cladding, a middle cladding, and an outer cladding; a radius (R2) of the inner cladding is 1.04-1.6 times that of the core, and a relative refractive index difference (Δ2) thereof is −0.01-0.01%; the middle cladding is a graded refractive index cladding whose radius (R3) is 1.06-1.8 times that of the core, and a relative refractive index difference thereof is decreased from Δ2 to Δ4; and a radius (R4) of the outer cladding is 2.38-2.63 times that of the core, and a relative refractive index difference (Δ4) thereof is between −0.20 and −0.40%. The invention reduces the additional bending loss of the fiber, improves the bending resistance and mechanical properties, basically eliminates the internal stress, and ensures the service life even working for a long term under the condition of low radius. The method for producing the fiber is simple, effective, and suitable for mass production.

摘要翻译： 包括芯和包层的多模光纤。 芯的半径（R1）为24-26μm，其折射率分布为抛物线，最大相对折射率差（＆Dgr; 1）为0.9-1.1％。 该包层围绕该芯并且包括从内到外的内包层，中包层和外包层; 内包层的半径（R2）为芯的1.04-1.6倍，折射率差（＆Dgr; 2）为-0.01-0.01％。 中间包层是其半径（R3）为纤芯的1.06-1.8倍的渐变折射率包层，其相对折射率差从＆Dgr; 2减小到＆Dgr; 4; 并且外包层的半径（R 4）为芯的2.38-2.63倍，并且其相对折射率差（＆Dgr; 4）在-0.20和-0.40％之间。 本发明减少了纤维的附加弯曲损耗，提高了抗弯曲性和机械性能，基本上消除了内部应力，并且在半径低的条件下长期保证使用寿命。 纤维的制造方法简单，有效，适合批量生产。

公开(公告)号：US20110044596A1

公开(公告)日：2011-02-24

申请号：US12839396

申请日：2010-07-19

申请人： Fanghai ZHANG ,  Beibei CAO ,  Qingrong HAN ,  Raadjkoemar Matai

发明人： Fanghai ZHANG ,  Beibei CAO ,  Qingrong HAN ,  Raadjkoemar Matai

IPC分类号： G02B6/028 ,  G02B6/10

CPC分类号： G02B6/03633 ,  G02B6/0286 ,  G02B6/0288 ,  G02B6/03638 ,  G02B6/0365

摘要： A multimode fiber including a core and a cladding. The core has a radius (R1) of 24-26 μm, the refractive index profile thereof is a parabola, and the maximum relative refractive index difference (Δ1) is 0.9-1.1%. The cladding surrounds the core and includes from inside to outside an inner cladding, a middle cladding, and an outer cladding; a radius (R2) of the inner cladding is 1.04-1.6 times that of the core, and a relative refractive index difference (Δ2) thereof is −0.01-0.01%; the middle cladding is a graded refractive index cladding whose radius (R3) is 1.06-1.8 times that of the core, and a relative refractive index difference thereof is decreased from Δ2 to Δ4; and a radius (R4) of the outer cladding is 2.38-2.63 times that of the core, and a relative refractive index difference (Δ4) thereof is between −0.20 and −0.40%. The invention reduces the additional bending loss of the fiber, improves the bending resistance and mechanical properties, basically eliminates the internal stress, and ensures the service life even working for a long term under the condition of low radius. The method for producing the fiber is simple, effective, and suitable for mass production.

摘要翻译： 包括芯和包层的多模光纤。 芯的半径（R1）为24-26μm，其折射率分布为抛物线，最大相对折射率差（＆Dgr; 1）为0.9-1.1％。 该包层围绕该芯并且包括从内到外的内包层，中包层和外包层; 内包层的半径（R2）为芯的1.04-1.6倍，折射率差（＆Dgr; 2）为-0.01-0.01％。 中间包层是其半径（R3）为纤芯的1.06-1.8倍的渐变折射率包层，其相对折射率差从＆Dgr; 2减小到＆Dgr; 4; 并且外包层的半径（R 4）为芯的2.38-2.63倍，并且其相对折射率差（＆Dgr; 4）在-0.20和-0.40％之间。 本发明减少了纤维的附加弯曲损耗，提高了抗弯曲性和机械性能，基本上消除了内部应力，并且在半径低的条件下长期保证使用寿命。 纤维的制造方法简单，有效，适合批量生产。

公开(公告)号：US09086524B2

公开(公告)日：2015-07-21

申请号：US13603399

申请日：2012-09-04

申请人： Chen Yang ,  Qingrong Han ,  Weijun Tong ,  Jie Luo ,  Yongtao Liu

发明人： Chen Yang ,  Qingrong Han ,  Weijun Tong ,  Jie Luo ,  Yongtao Liu

IPC分类号： C03B37/018 ,  C03B37/027 ,  G02B6/028 ,  C03B37/012 ,  C03B37/014 ,  G02B6/036 ,  G02B6/02 ,  C03C13/04

CPC分类号： G02B6/0285 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/0183 ,  C03B37/01892 ,  C03B37/02754 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/86 ,  C03B2203/23 ,  C03B2205/09 ,  C03B2205/14 ,  C03C13/045 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/31 ,  C03C2203/40 ,  G02B6/02395 ,  G02B6/0283 ,  G02B6/03633 ,  Y02P40/57

摘要： A method for manufacturing an optical fiber preform, including: a) providing a lining tube as a substrate tube, and doping and depositing by a PCVD or an MCVD process; b) in the reacting gas of silicon tetrachloride and oxygen, introducing a fluorine-containing gas for fluorine doping, introducing germanium tetrachloride for germanium doping, ionizing the reacting gas in the lining tube through microwaves to form plasma, depositing the plasma on the inner wall of the lining tube in the form of glass; c) after the completion of deposition, processing the deposited lining tube into a solid core rod by melting contraction through an electric heating furnace; d) sleeving the solid core rod into a pure quartz glass jacketing tube and manufacturing the two into an optical fiber preform; and e) allowing the effective diameter d of the optical fiber preform to become between 95 and 205 mm.

摘要翻译： 一种制造光纤预制棒的方法，包括：a）提供衬管作为衬底管，并通过PCVD或MCVD工艺进行掺杂和沉积; b）在四氯化硅和氧气的反应气体中，引入用于氟掺杂的含氟气体，引入用于锗掺杂的四氯化锗，通过微波将衬里管中的反应气体离子化以形成等离子体，将等离子体沉积在内壁上 的衬里管以玻璃的形式; c）沉积完成后，通过电加热炉熔化收缩将沉积的衬管加工成固体芯棒; d）将实心芯棒套入纯石英玻璃护套管并将其制造成光纤预制棒; 以及e）允许光纤预型件的有效直径d变为95至205mm。

公开(公告)号：US20110058780A1

公开(公告)日：2011-03-10

申请号：US12839432

申请日：2010-07-20

申请人： Qingrong HAN ,  Chen YANG ,  Jing LI ,  Jie LUO

发明人： Qingrong HAN ,  Chen YANG ,  Jing LI ,  Jie LUO

IPC分类号： G02B6/028 ,  C03B37/014 ,  C03B37/018

CPC分类号： C03B37/018 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/0183 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  C23C16/045 ,  C23C16/402 ,  C23C16/56 ,  G02B6/02238 ,  G02B6/0283 ,  G02B6/0365

摘要： A single mode fiber having a core, an inner cladding, a depressed cladding, and an outer cladding composed of pure silica glass. The core is surrounded in sequence with the inner cladding and the depressed cladding. The core has silica glass doped with germanium and fluorine, with a diameter (a) of 8.0-8.8 μm, a relative refractive index difference (Δ1) of 0.35-0.38%, and the contribution of fluoride (ΔF) is −0.09±0.02%. The inner cladding has silica glass doped with germanium and fluorine, with a diameter (b) of 18-21 μm and a relative refractive index difference (Δ2) of 0±0.02%. The depressed cladding has silica glass doped with fluorine, with a diameter (c) of 26-36 μm and a relative refractive index difference (Δ32) at the external interface thereof is between −0.22 and −0.35%, and a relative refractive index difference (Δ31) at the internal interface thereof is between −0.20 and −0.35%, and Δ32≦Δ31. The fiber has a good bending resistance, good mechanical properties, and extended service lifetime, and prevents the additional stresses generated by bending from passing on to the core, thereby reducing attenuation.

摘要翻译： 具有芯，内包层，凹陷包层和由纯二氧化硅玻璃构成的外包层的单模光纤。 芯部与内包层和凹陷包层依次包围。 芯具有掺杂有锗和氟的二氧化硅玻璃，直径（a）为8.0-8.8μm，相对折射率差（＆Dgr; 1）为0.35-0.38％，氟化物（＆Dgr; F）的贡献为 -0.09±0.02％。 内包层具有掺杂有锗和氟的二氧化硅玻璃，其直径（b）为18-21μm，相对折射率差（＆Dgr; 2）为0±0.02％。 凹陷的包层具有掺杂有氟的二氧化硅玻璃，其直径（c）为26-36μm，其外界面处的相对折射率差（＆Dgr; 32）在-0.22和-0.35％之间，相对折射率 在其内部界面处的指数差异（＆Dgr; 31）在-0.20和-0.35％之间，＆Dgr; 32＆nlE;＆Dgr; 31。 纤维具有良好的抗弯曲性，良好的机械性能和延长的使用寿命，并且防止由弯曲产生的附加应力传递到芯上，从而减少衰减。

公开(公告)号：US08200057B2

公开(公告)日：2012-06-12

申请号：US12839432

申请日：2010-07-20

申请人： Qingrong Han ,  Chen Yang ,  Jing Li ,  Jie Luo

发明人： Qingrong Han ,  Chen Yang ,  Jing Li ,  Jie Luo

IPC分类号： G02B6/036

CPC分类号： C03B37/018 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/0183 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  C23C16/045 ,  C23C16/402 ,  C23C16/56 ,  G02B6/02238 ,  G02B6/0283 ,  G02B6/0365

摘要： A single mode fiber having a core, an inner cladding, a depressed cladding, and an outer cladding composed of pure silica glass. The core is surrounded in sequence with the inner cladding and the depressed cladding. The core has silica glass doped with germanium and fluorine, with a diameter (a) of 8.0-8.8 μm, a relative refractive index difference (Δ1) of 0.35-0.38%, and the contribution of fluoride (ΔF) is −0.09±0.02%. The inner cladding has silica glass doped with germanium and fluorine, with a diameter (b) of 18-21 μm and a relative refractive index difference (Δ2) of 0±0.02%. The depressed cladding has silica glass doped with fluorine, with a diameter (c) of 26-36 μm and a relative refractive index difference (Δ32) at the external interface thereof is between −0.22 and −0.35%, and a relative refractive index difference (Δ31) at the internal interface thereof is between −0.20 and −0.35%, and Δ32≦Δ31. The fiber has a good bending resistance, good mechanical properties, and extended service lifetime, and prevents the additional stresses generated by bending from passing on to the core, thereby reducing attenuation.

摘要翻译： 具有芯，内包层，凹陷包层和由纯二氧化硅玻璃构成的外包层的单模光纤。 芯部与内包层和凹陷包层依次包围。 芯具有掺杂有锗和氟的二氧化硅玻璃，直径（a）为8.0-8.8μm，相对折射率差（＆Dgr; 1）为0.35-0.38％，氟化物（＆Dgr; F）的贡献为 -0.09±0.02％。 内包层具有掺杂有锗和氟的二氧化硅玻璃，其直径（b）为18-21μm，相对折射率差（＆Dgr; 2）为0±0.02％。 凹陷的包层具有掺杂有氟的二氧化硅玻璃，其直径（c）为26-36μm，其外界面处的相对折射率差（＆Dgr; 32）在-0.22和-0.35％之间，相对折射率 在其内部界面处的指数差异（＆Dgr; 31）在-0.20和-0.35％之间，＆Dgr; 32＆nlE;＆Dgr; 31。 纤维具有良好的抗弯曲性，良好的机械性能和延长的使用寿命，并且防止由弯曲产生的附加应力传递到芯上，从而减少衰减。

公开(公告)号：US20120324958A1

公开(公告)日：2012-12-27

申请号：US13603399

申请日：2012-09-04

申请人： Chen YANG ,  Qingrong HAN ,  Weijun TONG ,  Jie LUO ,  Yongtao LIU

发明人： Chen YANG ,  Qingrong HAN ,  Weijun TONG ,  Jie LUO ,  Yongtao LIU

IPC分类号： C03B37/018 ,  C03B37/027

CPC分类号： G02B6/0285 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/0183 ,  C03B37/01892 ,  C03B37/02754 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/86 ,  C03B2203/23 ,  C03B2205/09 ,  C03B2205/14 ,  C03C13/045 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/31 ,  C03C2203/40 ,  G02B6/02395 ,  G02B6/0283 ,  G02B6/03633 ,  Y02P40/57

摘要： A method for manufacturing an optical fiber preform, including: a) providing a lining tube as a substrate tube, and doping and depositing by a PCVD or an MCVD process; b) in the reacting gas of silicon tetrachloride and oxygen, introducing a fluorine-containing gas for fluorine doping, introducing germanium tetrachioride for germanium doping, ionizing the reacting gas in the lining tube through microwaves to form plasma, depositing the plasma on the inner wall of the lining tube in the form of glass; c) after the completion of deposition, processing the deposited lining tube into a solid core rod by melting contraction through an electric heating furnace; d) sleeving the solid core rod into a pure quartz glass jacketing tube and manufacturing the two into an optical fiber preform; and e) allowing the effective diameter d of the optical fiber preform to become between 95 and 205 mm.

摘要翻译： 一种制造光纤预制棒的方法，包括：a）提供衬管作为衬底管，并通过PCVD或MCVD工艺进行掺杂和沉积; b）在四氯化硅和氧气的反应气体中，引入用于氟掺杂的含氟气体，引入用于锗掺杂的四氯化锗，通过微波将衬里管中的反应气体离子化以形成等离子体，将等离子体沉积在内壁上 的衬里管以玻璃的形式; c）沉积完成后，通过电加热炉熔化收缩将沉积的衬管加工成固体芯棒; d）将实心芯棒套入纯石英玻璃护套管并将其制造成光纤预制棒; 以及e）允许光纤预型件的有效直径d变为95至205mm。

公开(公告)号：US20120087625A1

公开(公告)日：2012-04-12

申请号：US13327736

申请日：2011-12-15

申请人： Qingrong HAN ,  Chen YANG ,  Yongtao LIU ,  Jie LUO ,  Matai RADJJ

发明人： Qingrong HAN ,  Chen YANG ,  Yongtao LIU ,  Jie LUO ,  Matai RADJJ

IPC分类号： G02B6/028 ,  C03B37/027 ,  C03B37/018 ,  B32B17/02 ,  C03B37/075

CPC分类号： C03B37/01211 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2203/22 ,  Y02P40/57 ,  Y10T428/2949

摘要： A fiber preform, including: a fiber core rod and an outer cladding layer. The ratio of the diameter of the fiber core rod to the diameter of the core layer thereof is 2.1-2.8. The fiber core rod and a small fluorine-doped quartz glass tube are melted to form a core rod assembly. The ratio of the diameter difference between the core rod assembly and the fiber core rod to the diameter of the core layer is 0.5-2.2. The relative refractive index difference of fluorine-doped quartz glass relative to purified quartz glass ΔF is −0.20% to −0.35%. The core rod assembly is arranged with a large purified quartz glass tube, or directly deposited with a SiO2 glass cladding layer. A ratio of an effective diameter of the fiber preform to the diameter of the core rod assembly is 2.0-5.6. Methods for manufacturing the preform and a fiber are also provided.

摘要翻译： 一种纤维预制件，包括：纤维芯棒和外包层。 纤维芯棒的直径与其芯层直径的比为2.1-2.8。 纤维芯棒和小的氟掺杂石英玻璃管被熔化以形成芯棒组件。 芯棒组件和纤维芯棒之间的直径差与芯层直径之比为0.5-2.2。 氟掺杂石英玻璃相对于纯化石英玻璃与Dgr F的相对折射率差为-0.20％至-0.35％。 芯棒组件布置有大的纯化石英玻璃管，或直接沉积有SiO 2玻璃包层。 纤维预制棒的有效直径与芯棒组件的直径之比为2.0-5.6。 还提供了用于制造预成型件和纤维的方法。

公开(公告)号：US06952518B2

公开(公告)日：2005-10-04

申请号：US10757210

申请日：2004-01-14

申请人： Shuqiang Zhang ,  Qingrong Han ,  Yuqing Cao ,  TieJun Wang ,  Raadj Matai ,  Jie Luo

发明人： Shuqiang Zhang ,  Qingrong Han ,  Yuqing Cao ,  TieJun Wang ,  Raadj Matai ,  Jie Luo

IPC分类号： G02B6/036 ,  G02B6/02

CPC分类号： G02B6/02009 ,  G02B6/02242 ,  G02B6/03688

摘要： The invention relates to a low dispersion slope dispersion-shifted single-mode fiber for large capacity transmission comprising a core and a cladding. Said fiber is characterized in that said core has three to five core segments having different refractive index profiles, and said cladding has four to six cladding segments. The total dispersion slope of said fiber at 1550 nm is less than 0.060 ps/nm2·km, the zero dispersion wavelength is less than 1420 nm, the effective area ranges from 55 μm2 to 65 μm2, and the dispersion in the region of 1530 nm˜1565 nm ranges from 5.0 ps/nm2·km to 12.0 ps/nm2·km. The fiber has low dispersion slope, moderate dispersion, low attenuation, and excellent bend resistance performance. It is suitable for a high-speed (10 Gbits/s and 40 Gbits/s), large capacity, and long distance DWDM system. Therefore, not only the non-linear problem that fazes high-speed communication is solved effectively, but also the DWDM transmission at 10 Gbits/s can be realized within a wider wavelength range. In addition, low dispersion slope is advantageous for comprehensive management of dispersion, so that the requirement for long distance non-electric relay can be fulfilled.

摘要翻译： 本发明涉及一种用于大容量传输的低色散斜率色散位移单模光纤，包括芯和包层。 所述纤维的特征在于，所述芯具有三至五个具有不同折射率分布的芯部分，并且所述包层具有四至六个包层部分。 所述光纤在1550nm处的总色散斜率小于0.060ps / nm 2·km，零色散波长小于1420nm，有效面积为55μm2＆lt; 2＆gt; / SUP>至65μm2，1530nm〜1565nm区域的色散范围为5.0ps / nm 2·km至12.0ps / nm·SUP > 2 .km。 该纤维具有低色散斜率，适中的色散，低衰减和优异的抗弯性能。 适用于高速（10 Gb / s和40 Gbits / s），大容量和长距离DWDM系统。 因此，不仅有效解决了高速通信的非线性问题，而且可以在更宽的波长范围内实现10Gb / s的DWDM传输。 此外，低色散斜率对于色散的综合管理是有利的，因此可以实现对长距离非继电器的要求。

公开(公告)号：US20050000253A1

公开(公告)日：2005-01-06

申请号：US10874456

申请日：2004-06-23

申请人： Kang Xie ,  Shuqiang Zhang ,  Qingrong Han ,  Tiejun Wang ,  Chenghou Tu ,  Raji Matai

发明人： Kang Xie ,  Shuqiang Zhang ,  Qingrong Han ,  Tiejun Wang ,  Chenghou Tu ,  Raji Matai

IPC分类号： C03B37/018

CPC分类号： C03B37/01892 ,  C03B37/01807 ,  C03B37/0183 ,  C03B37/01853 ,  C03B37/01861 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2207/30 ,  C03B2207/32

摘要： The present invention directs to a method of manufacturing low water peak single mode optical fiber, which comprises performing deposition in a substrate tube using PCVD technology, whereby a deposited layer of a certain construction design is formed on the inner wall of the substrate tube, melt contracting the substrate tube into a solid core rod according to melt contraction technology, producing an optical fiber preform by combining the core rod and a jacket tube of low hydroxyl content by means of RIT technology or by depositing an outer cladding on the outer surface of the core rod using OVD technology, sending the optical fiber preform into a fiber drawing furnace to draw it into an optical fiber, wherein: in the PCVD technology, the content of impurities in a gas mixture of raw materials, which is characterized by the infrared spectrum transmissivity thereof, is required to a transmissivity of 90% or greater, the water content in O2 is 100 ppb or less, the water content in C2F6 is 1000 ppb or less, the hydroxyl content of the substrate tube is 1000 ppb or less, the dynamic leak rate of a deposition machine is 1.0×10−5 mbar·l/s or less; during melt contraction of the substrate tube, the dynamic leak rate of a melt contraction machine is 1.0×10−5 mbar·l/s or less; the hydroxyl content of the jacket tube of low hydroxyl content is required to be 10 ppm or less; the relative humidity of environment during the process of manufacture is 25% or less; the ratio of the cladding diameter to the core layer diameter (b/a value) in the waveguide structure of the optical fiber is from 2.0 to 7.0.

摘要翻译： 本发明涉及制造低水峰单模光纤的方法，其包括使用PCVD技术在衬底管中进行沉积，由此在衬底管的内壁上形成一定的结构设计的沉积层，熔化 根据熔体收缩技术将衬底管收缩成实心芯棒，通过RIT技术将芯棒和低羟基含量的护套管组合在一起，或通过在外部表面上沉积外包层来生产光纤预制棒 使用OVD技术将光纤预制棒发送到光纤拉丝炉中，将其拉入光纤中，其中：在PCVD技术中，原料气体混合物中的杂质含量，其特征在于红外光谱 透过率为90％以上，O 2的含水量为100ppb以下，C2F6的含水量 为1000ppb以下，基材管的羟基含量为1000ppb以下，沉积机的动态泄漏率为1.0×10 -5 mbar·l / s以下。 在基材管熔融收缩期间，熔体收缩机的动态泄漏率为1.0×10 -5 mbar·l / s以下; 低羟基含量的护套的羟基含量为10ppm以下; 制造过程中环境的相对湿度为25％以下; 光纤的波导结构中的包层直径与芯层直径的比（b / a值）为2.0〜7.0。