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1. 发明授权

US06997016B2 Method and apparatus for manufacturing glass tube 失效
标题翻译：制造玻璃管的方法和装置
公开(公告)号：US06997016B2
公开(公告)日：2006-02-14
申请号：US10796052
申请日：2004-03-10
申请人： Tomomi Moriya , Masashi Onishi , Kazuyuki Sohma , Masaaki Hirano , Eiji Yanada , Tadashi Enomoto
发明人： Tomomi Moriya , Masashi Onishi , Kazuyuki Sohma , Masaaki Hirano , Eiji Yanada , Tadashi Enomoto
IPC分类号： C03B23/26 , C03B23/045
CPC分类号： C03B37/01254 , C03B19/1469 , C03B23/045 , C03B23/0493 , C03B23/0496 , Y02P40/57
摘要： Stress exerted on an inner or outer circumferential side of a glass tube 6 is controlled when a glass material 3 is heated and softened by a heating element 41 provided around the glass material 3 and a piercing plug 31 is relatively pressed into a softened region of the glass material 3 to thereby form the glass material 3 into the glass tube 6 gradually. For example, the control of the stress can be carried out by controlling an internal or external pressure of the glass tube 6. As a result, the deformation of the glass tube 6 just after piercing is prevented so that the glass tube 6 can be obtained with high quality. It is also possible to solve the problem that cracks may occur easily at the time of reheating because of residual stress distribution after cooling.
摘要翻译：当玻璃材料3被设置在玻璃材料3周围的加热元件41加热和软化时，控制施加在玻璃管6的内周侧或外周侧上的应力，并且穿孔塞31被相对地压入到玻璃材料3，从而逐渐将玻璃材料3形成到玻璃管6中。例如，可以通过控制玻璃管6的内部或外部压力来进行应力的控制。结果，防止刚刚穿刺之后的玻璃管6的变形，从而能够以高质量获得玻璃管6。也可以解决由于冷却后的残余应力分布而在再加热时容易发生裂纹的问题。

2. 发明授权

US07062941B2 Manufacturing method of optical fiber preform 有权
标题翻译：光纤预制棒的制造方法
公开(公告)号：US07062941B2
公开(公告)日：2006-06-20
申请号：US10103786
申请日：2002-03-25
申请人： Masashi Onishi , Eiji Yanada , Masaaki Hirano , Hideyuki Ijiri
发明人： Masashi Onishi , Eiji Yanada , Masaaki Hirano , Hideyuki Ijiri
IPC分类号： C03B37/07
CPC分类号： C03B37/01228
摘要： A method for manufacturing an optical fiber preform that can produce an optical fiber having desired characteristics over the longer length thereof. A crude preform provided with a core region and a cladding region is prepared (Step S1), and at a plurality of positions in the longitudinal direction of the crude preform, a refractive index profile in the cross-section of the crude preform is measured (Step S2). Then, the shape of the cladding region is demarcated based on the shape of the profile (Step S3). Subsequently, the crude preform is ground based on the results of the demarcation (Step S4). Thus, an optical fiber preform that enables the manufacture of an optical fiber having target characteristics is manufactured.
摘要翻译：一种光纤预制棒的制造方法，该光纤预制棒可以在其较长的长度上产生具有所需特性的光纤。制备具有芯区域和包层区域的粗制预制件（步骤S1），并且在粗制预型件的纵向方向上的多个位置处，测量粗制预成型体的横截面中的折射率分布（步骤S2）。然后，基于轮廓的形状划定包层区域的形状（步骤S 3）。随后，基于划分的结果研磨粗制预成型件（步骤S4）。因此，制造能够制造具有目标特性的光纤的光纤预制棒。

3. 发明授权

US06898361B2 Dispersion-compensating optical fiber and optical transmission line 失效
标题翻译：色散补偿光纤和光传输线
公开(公告)号：US06898361B2
公开(公告)日：2005-05-24
申请号：US10374716
申请日：2003-02-27
申请人： Eiji Yanada , Masaaki Hirano , Masashi Onishi
发明人： Eiji Yanada , Masaaki Hirano , Masashi Onishi
IPC分类号： G02B6/02 , G02B6/16
CPC分类号： G02B6/02261 , G02B6/0228 , G02B6/02285 , G02B6/0286 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/03666
摘要： There is disclosed a dispersion-compensating optical fiber exhibiting, at a wavelength of 1500 nm, a chromatic dispersion of −30 ps/nm/km or less, a ratio (S/D) of −0.08/nm to +0.05/nm between chromatic dispersion D and dispersion slope S, a polarization mode dispersion of 0.3 ps/km1/2 or less, and a transmission loss of 1 dB/km or less, and an excess loss of 0.2 dB/km or less due to OH group in a wavelength band of 1.4 μm.
摘要翻译：公开了一种色散补偿光纤，其波长为1500nm，色散为-30ps / nm / km以下，在-0.08 / nm〜+ 0.05 / nm之间的比率（S / D）为色散D和色散斜率S，偏振模色散为0.3ps / km 1/2以下，传输损耗为1dB / km以下，超过0.2dB / km以下，由于OH基在1.4μm的波段中。

4. 发明授权

US06836605B2 Optical fiber preform, production method thereof, and optical fiber produced from the preform 有权
标题翻译：光纤预制棒，其制造方法以及由该预制棒制成的光纤
公开(公告)号：US06836605B2
公开(公告)日：2004-12-28
申请号：US10291813
申请日：2002-11-12
申请人： Masaaki Hirano , Eiji Yanada , Masashi Onishi
发明人： Masaaki Hirano , Eiji Yanada , Masashi Onishi
IPC分类号： G02B602
CPC分类号： C03C3/06 , C03B37/01211 , C03B37/01228 , C03B37/01248 , C03B37/0126 , C03B2201/02 , C03B2201/10 , C03B2201/12 , C03B2201/20 , C03B2201/28 , C03B2201/31 , C03B2203/23 , C03B2203/36 , G02B6/02285 , G02B6/03627
摘要： An optical fiber preform having a low core noncircularity and eccentricity for producing an optical fiber having an improved polarization mode dispersion, a method for producing the preform, and an optical fiber produced from the preform. The optical fiber preform is produced by the following steps. Diameter-reduced portions 11a and 11b are formed in the vicinity of the ends of the glass pipe 11. A glass rod 12 is inserted into the glass pipe 11. The glass rod 12 is fixed to the glass pipe 11 at the diameter-reduced portion 11a. The glass pipe 11 and the glass rod 12 are heat-unified from the diameter-reduced portion 11b forward to the diameter-reduced portion 11a. The optical fiber preform has a core noncircularity of at most 1.5%. The optical fiber has a polarization mode dispersion of at most 0.15 ps/km1/2 at a wavelength of 1,550 nm.
摘要翻译：一种具有低芯非圆度和偏心率的光纤预制件，用于制造具有改进的偏振模色散的光纤，由预成型件制造的预制棒的制造方法和光纤。光纤预制棒通过以下步骤制造。直径减小部分11a和11b形成在玻璃管11的端部附近。玻璃棒12插入到玻璃管11中。玻璃棒12在直径减小部分处固定到玻璃管11上 11a。玻璃管11和玻璃棒12从直径减小部分11b向前加热到直径减小部分11a。光纤预制棒的芯非圆度至多为1.5％。该光纤在1,550nm的波长下具有至多0.15ps / km 1/2的偏振模色散。

5. 发明授权

US07068901B2 Optical fiber preform producing method, optical fiber production method, and optical fiber 失效
标题翻译：光纤预制棒生产方法，光纤生产方法和光纤
公开(公告)号：US07068901B2
公开(公告)日：2006-06-27
申请号：US10494278
申请日：2003-04-16
申请人： Masaaki Hirano , Eiji Yanada , Tomoyuki Yokokawa , Takashi Sasaki
发明人： Masaaki Hirano , Eiji Yanada , Tomoyuki Yokokawa , Takashi Sasaki
IPC分类号： G02B6/22
CPC分类号： G02B6/03688 , C03B37/01211 , C03B37/0124 , C03B2203/22 , C03B2203/29 , C03B2203/36 , G02B6/02271 , G02B6/03644 , G02B6/03666 , Y02P40/57
摘要： An optical fiber preform comprises a central core portion having a maximal value Nc of refractive index in the center, and outside the central core portion, comprising at least a depressed portion having a minimal value Nd of refractive index, a ring portion having a maximal value Nr of refractive index and an outside cladding layer having a maximal value No of refractive index. The optical fiber preform satisfies a relation of Nc≧Nr>No>Nd among the values of refractive index. A method of the optical fiber preform comprises fabricating a glass rod by inserting a rod containing at least the central core portion into a pipe containing at least the depressed portion and integrating them, fabricating a glass pipe having the ring portion, and fabricating a vitreous body by integrating the glass rod and the glass pipe by collapsing after inserting the glass rod into the glass pipe.
摘要翻译：光纤预制件包括在中心具有折射率最大值Nc并且在中心芯部分外部的中心芯部分，至少包括具有最小折射率Nd的凹陷部分，具有最大值的环部分折射率Nr和折射率最大值No的外包层。光纤预制棒满足折射率值之间的Nc> = Nr> No> Nd的关系。光纤预制棒的方法包括通过将至少包含中心纤芯部分的棒插入到至少包含凹陷部分并将其集成的管中来制造玻璃棒，制造具有该环部分的玻璃管，以及制造玻璃体通过在将玻璃棒插入玻璃管中之后通过塌缩来集成玻璃棒和玻璃管。

6. 发明授权

US07010203B2 Optical fiber manufacturing method and optical fiber 失效
标题翻译：光纤制造方法和光纤
公开(公告)号：US07010203B2
公开(公告)日：2006-03-07
申请号：US10479852
申请日：2003-04-03
申请人： Tomoyuki Yokokawa , Eiji Yanada , Masaaki Hirano
发明人： Tomoyuki Yokokawa , Eiji Yanada , Masaaki Hirano
IPC分类号： G02B6/02 , G02B6/22
CPC分类号： G02B6/03694 , C03B37/01211 , C03B37/01892 , C03B2201/03 , C03B2201/07 , C03B2203/22 , C03B2203/36 , G02B6/02261 , G02B6/02271 , G02B6/0228 , G02B6/03644 , G02B6/03666
摘要： An object of the present invention is to provide an optical fiber manufacturing method and an optical fiber in which an increase in the transmission loss is suppressed by preventing hydroxyl group from entering near the core portion.This invention provides a method for manufacturing an optical fiber 10 including forming a glass pipe 16 by applying a ring portion 15 on the inner face of a starting pipe 14 as a starting material, inserting a glass rod 13 that becomes a central core portion 11 and a depressed portion 12 into the inside of the glass pipe 16, integrating the glass pipe 16 and the glass rod 13 by collapse to form a glass body 17, forming a preform 10a by providing a jacket portion 18 outside the glass body 17, and drawing the preform 10a, wherein the thickness of the starting pipe 14 is set in a range from 4 mm to 8 mm.
摘要翻译：本发明的目的是提供一种光纤制造方法和光纤，其中通过防止羟基进入芯部附近而抑制传输损耗的增加。本发明提供了一种制造光纤10的方法，该光纤10包括通过在作为起始材料的起始管14的内表面上施加环形部分15，插入成为中心芯部11的玻璃棒13和在玻璃管16的内部设有凹部12，将玻璃管16和玻璃棒13倒塌形成玻璃体17，通过在玻璃体17的外侧设置护套部18而形成预制件10a; 拉制预制件10a，其中起始管14的厚度设定在4mm至8mm的范围内。

7. 发明授权

US08015845B2 Glass tube processing method 失效
标题翻译：玻璃管加工方法
公开(公告)号：US08015845B2
公开(公告)日：2011-09-13
申请号：US12789111
申请日：2010-05-27
申请人： Tetsuya Nakanishi , Masashi Onishi , Tomoyuki Yokokawa , Masaaki Hirano , Nobuyuki Taira
发明人： Tetsuya Nakanishi , Masashi Onishi , Tomoyuki Yokokawa , Masaaki Hirano , Nobuyuki Taira
IPC分类号： C03B37/07
CPC分类号： C03B23/043 , C03B37/01242 , C03B37/01257 , C03B37/01815
摘要： In a glass processing method according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube G by relatively moving a heating furnace 20 comprising a heating element 21 for annularly enclosing the circumference of the substrate glass tube in a longitudinal direction of the substrate glass tube G with respect to the substrate glass tube G in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0% or less using a glass processing apparatus 1, a temperature of at least one of the heating element 21 and the substrate glass tube G is measured and the amount of heat generation of the heating element 21 is adjusted based on the measured temperature.
摘要翻译：在根据本发明的玻璃加工方法中，在通过相对移动包括加热元件21的加热炉20进行化学气相沉积或直径收缩的情况下，用于将基板玻璃管的圆周环形地包围基板玻璃管G相对于外径为30mm以上且壁厚为3mm以上且小于15mm的基板玻璃管G的纵向方向，外径的椭圆度为使用玻璃处理装置1为1.0％以下，测量加热元件21和基板玻璃管G中的至少一个的温度，并根据测量温度来调节加热元件21的发热量。

8. 发明授权

US07637125B2 Glass tube processing method, apparatus and glass tube 失效
标题翻译：玻璃管加工方法，装置和玻璃管
公开(公告)号：US07637125B2
公开(公告)日：2009-12-29
申请号：US10992102
申请日：2004-11-19
申请人： Tetsuya Nakanishi , Masashi Onishi , Tomoyuki Yokokawa , Masaaki Hirano , Nobuyuki Taira
发明人： Tetsuya Nakanishi , Masashi Onishi , Tomoyuki Yokokawa , Masaaki Hirano , Nobuyuki Taira
IPC分类号： C03B37/07
CPC分类号： C03B23/043 , C03B37/01242 , C03B37/01257 , C03B37/01815
摘要： In a glass processing method according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube G by relatively moving a heating furnace 20 comprising a heating element 21 for annularly enclosing the circumference of the substrate glass tube in a longitudinal direction of the substrate glass tube G with respect to the substrate glass tube G in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0% or less using a glass processing apparatus 1, a temperature of at least one of the heating element 21 and the substrate glass tube G is measured and the amount of heat generation of the heating element 21 is adjusted based on the measured temperature.
摘要翻译：在根据本发明的玻璃加工方法中，在通过相对移动包括加热元件21的加热炉20进行化学气相沉积或直径收缩的情况下，用于将基板玻璃管的圆周环形地包围基板玻璃管G相对于外径为30mm以上且壁厚为3mm以上且小于15mm的基板玻璃管G的纵向方向，外径的椭圆度为使用玻璃处理装置1为1.0％以下，测量加热元件21和基板玻璃管G中的至少一个的温度，并根据测量温度来调节加热元件21的发热量。

9. 发明申请

US20050144983A1 Glass tube processing method, apparatus and glass tube 失效
标题翻译：玻璃管加工方法，装置和玻璃管
公开(公告)号：US20050144983A1
公开(公告)日：2005-07-07
申请号：US10992102
申请日：2004-11-19
申请人： Tetsuya Nakanishi , Masashi Onishi , Tomoyuki Yokokawa , Masaaki Hirano , Nobuyuki Taira
发明人： Tetsuya Nakanishi , Masashi Onishi , Tomoyuki Yokokawa , Masaaki Hirano , Nobuyuki Taira
IPC分类号： C03B23/08 , C03B23/043 , C03B23/045 , C03B37/00 , C03B37/012 , C03B37/018 , C03B37/07
CPC分类号： C03B23/043 , C03B37/01242 , C03B37/01257 , C03B37/01815
摘要： In a glass processing method according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube G by relatively moving a heating furnace 20 comprising a heating element 21 for annularly enclosing the circumference of the substrate glass tube in a longitudinal direction of the substrate glass tube G with respect to the substrate glass tube G in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0% or less using a glass processing apparatus 1, a temperature of at least one of the heating element 21 and the substrate glass tube G is measured and the amount of heat generation of the heating element 21 is adjusted based on the measured temperature.
摘要翻译：在根据本发明的玻璃加工方法中，在通过相对移动包括加热元件21的加热炉20进行化学气相沉积或直径收缩的情况下，用于将基板玻璃管的圆周环形地包围基板玻璃管G相对于外径为30mm以上且壁厚为3mm以上且小于15mm的基板玻璃管G的纵向方向，外径的椭圆度为使用玻璃处理装置1为1.0％以下，测量加热元件21和基板玻璃管G中的至少一个的温度，并根据测量温度来调节加热元件21的发热量。

10. 发明授权

US06519403B1 Optical fiber and method of making the same 有权
标题翻译：光纤及其制作方法
公开(公告)号：US06519403B1
公开(公告)日：2003-02-11
申请号：US09466798
申请日：1999-12-20
申请人： Masaaki Hirano , Masashi Onishi , Yoshio Yokoyama
发明人： Masaaki Hirano , Masashi Onishi , Yoshio Yokoyama
IPC分类号： G02B602
CPC分类号： C03C3/06 , C03C13/00 , C03C13/04 , G02B6/02257 , G02B6/02271 , G02B6/0281 , G02B6/0286 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/0365 , G02B6/03688 , G02B6/03694
摘要： An optical fiber is composed of silica glass and comprises a center core region doped with F element, a ring core region doped with GeO2, and an inner cladding region doped with F element; wherein a buffer layer composed of undoped SiO2 or SiO2 doped with one or both of P and Cl or a concentration gradient region in which GeO2 concentration radially decreases toward the boundary is provided between the center core region and the ring core region.
摘要翻译：光纤由石英玻璃构成，包括掺杂有F元件的中心芯区域，掺杂有GeO2的环形芯区域和掺杂有F元素的内包层区域; 其中，在中心芯区域和环形芯区域之间设置有由掺杂有P和Cl中的一个或两个的未掺杂的SiO 2或SiO 2或其中GeO 2浓度朝向边界径向减小的浓度梯度区的缓冲层。

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