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11. 发明授权

US06766089B2 Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber 失效
标题翻译：低色散光纤和光传输系统采用低色散光纤
公开(公告)号：US06766089B2
公开(公告)日：2004-07-20
申请号：US10662341
申请日：2003-09-16
申请人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
发明人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02014 , G02B6/02242 , G02B6/02257 , G02B6/02261 , G02B6/02271 , G02B6/0228 , G02B6/0286 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/03666
摘要： A low-dispersion optical fiber provides both reduced chromatic dispersion in a used wavelength band and increased effective core area. The low-dispersion optical fiber is made by covering a center core (1) with a first side core (2), covering the first side core (2) with a second side core (3), and covering the second side core (3) with a cladding (5). When the maximum refractive index of the center core (1) is written n1, the minimum refractive index of the first side core (2) is written n2, the maximum refractive index of the second side core (3) is written n3 and the refractive index of the cladding (5) is written nc, then n1>n3>nc>n2 is satisfied. Relative refractive index differences &Dgr;1, &Dgr;2 and &Dgr;3 with respect to the cladding (5) of the maximum refractive index of the center core (1), the minimum refractive index of the first side core (2) and the maximum refractive index of the second side core (3) respectively are made 0.4%≦&Dgr;1≦0.7%, −0.30%≦&Dgr;2≦−0.05% and 0.2%≦&Dgr;3.
摘要翻译：低色散光纤在使用的波长带中提供减少的色散并增加有效核心区域。低分散光纤通过用第一侧芯（2）覆盖中心芯（1），用第二侧芯（3）覆盖第一侧芯（2）并覆盖第二侧芯（3））与包层（5）。当中心芯（1）的最大折射率被写入n1时，第一侧芯（2）的最小折射率被写为n2，第二侧芯（3）的最大折射率被写为n3，折射率将包层（5）的折射率写入nc，则满足n1> n3> nc> n2。相对于中心纤芯（1）的最大折射率的包层（5），第一侧芯（2）的最小折射率和第二侧芯的最大折射率的相对折射率差Δ1，Delta2和Delta3 侧芯（3）分别为0.4％<=Δ1<= 0.7％，-0.30％<=Δ2≤0.05％和0.2％<= DELTA3。

12. 发明授权

US06684018B2 Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber 有权
标题翻译：低色散光纤和光传输系统采用低色散光纤
公开(公告)号：US06684018B2
公开(公告)日：2004-01-27
申请号：US09983616
申请日：2001-10-25
申请人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
发明人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02014 , G02B6/02242 , G02B6/02257 , G02B6/02261 , G02B6/02271 , G02B6/0228 , G02B6/0286 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/03666
摘要： A low-dispersion optical fiber provides both reduced chromatic dispersion in a used wavelength band and increased effective core area. The low-dispersion optical fiber is made by covering a center core (1) with a first side core (2), covering the first side core (2) with a second side core (3), and covering the second side core (3) with a cladding (5). When the maximum refractive index of the center core (1) is written n1, the minimum refractive index of the first side core (2) is written n2, the maximum refractive index of the second side core (3) is written n3 and the refractive index of the cladding (5) is written nc, then n1>n3>nc>n2 is satisfied. Relative refractive index differences &Dgr;1, &Dgr;2 and &Dgr;3 with respect to the cladding (5) of the maximum refractive index of the center core (1), the minimum refractive index of the first side core (2) and the maximum refractive index of the second side core (3) respectively are made 0.4%≦&Dgr;1≧0.7%, −0.30%≦&Dgr;2≦−0.05% and 0.2%≦&Dgr;3.
摘要翻译：低色散光纤在使用的波长带中提供减少的色散并增加有效核心区域。低分散光纤通过用第一侧芯（2）覆盖中心芯（1），用第二侧芯（3）覆盖第一侧芯（2）并覆盖第二侧芯（3））与包层（5）。当中心芯（1）的最大折射率被写入n1时，第一侧芯（2）的最小折射率被写为n2，第二侧芯（3）的最大折射率被写为n3，折射率将包层（5）的折射率写入nc，则满足n1> n3> nc> n2。相对于中心纤芯（1）的最大折射率的包层（5），第一侧芯（2）的最小折射率和第二侧芯的最大折射率的相对折射率差Δ1，Delta2和Delta3 侧芯（3）分别为0.4％<=Δ1> = 0.7％，-0.30％<=Δ2≤0.05％和0.2％<= DELTA3。

13. 发明授权

US06512872B2 Optical fiber, dispersion compensator using optical fiber, optical transmission line using optical fiber, and optical transmission system using optical fiber 失效
标题翻译：光纤，使用光纤的色散补偿器，使用光纤的光传输线，以及使用光纤的光传输系统
公开(公告)号：US06512872B2
公开(公告)日：2003-01-28
申请号：US09878976
申请日：2001-06-13
申请人： Ryuichi Sugizaki , Yoshihisa Suzuki
发明人： Ryuichi Sugizaki , Yoshihisa Suzuki
IPC分类号： G02B616
CPC分类号： G02B6/03627 , G02B6/02261 , G02B6/0228 , G02B6/29377 , H04B10/2525
摘要： Disclosed is an optical fiber, which comprises a core and a clad of a two-layer structure including an innermost layer and an outermost layer, and has a refractive index distribution structure satisfying the conditions of 0.8% ≦&Dgr;1≦1.3 % and−0.7 % ≦&Dgr;2≦−0.4%, and also satisfying the conditions of −20≦D≦0, −0.1≦S
摘要翻译：公开了一种光纤，其包括芯和包括最内层和最外层的两层结构的包层，并且具有满足0.8％<=DELTA1≤1.3％的条件的折射率分布结构， 0.7％<= DELTA2 <= -0.4％，并且还满足在指定波长带中的-20 <= D <= 0，-0.1 <= S <0和0 <=（D / S）<= 200的条件在1.5μm波长带中具有至少20nm的带宽。

14. 发明授权

US5933561A Optical fiber connecting body 失效
标题翻译：光纤连接体
公开(公告)号：US5933561A
公开(公告)日：1999-08-03
申请号：US5930
申请日：1998-01-12
申请人： Ryuichi Sugizaki
发明人： Ryuichi Sugizaki
IPC分类号： G02B6/26 , G02B6/02 , G02B6/34
CPC分类号： G02B6/03627 , G02B6/29377
摘要： An optical fiber connecting body comprising a positive dispersion optical fiber having chromatic dispersion at a transmission wavelength and a dispersion compensating optical fiber for canceling the chromatic dispersion of the positive dispersion optical fiber. A cladding diameter of the dispersion compensating optical fiber is smaller than that of the positive dispersion optical fiber and an optical fiber for connection is optically connected between the positive dispersion optical fiber and the dispersion compensating optical fiber.
摘要翻译：一种光纤连接体，包括具有透射波长的色散的正色散光纤和用于消除正色散光纤的色散的色散补偿光纤。色散补偿光纤的包层直径小于正色散光纤的包层直径，并且用于连接的光纤光学连接在正色散光纤和色散补偿光纤之间。

15. 发明授权

US5673354A Dispersion compensating optical fiber 失效
标题翻译：色散补偿光纤
公开(公告)号：US5673354A
公开(公告)日：1997-09-30
申请号：US610964
申请日：1996-03-05
申请人： Youichi Akasaka , Ryuichi Sugizaki , Kunio Kokura
发明人： Youichi Akasaka , Ryuichi Sugizaki , Kunio Kokura
IPC分类号： G02B6/02
CPC分类号： G02B6/02261 , G02B6/0228 , G02B6/03627
摘要： A dispersion compensating optical fiber is proposed for application in a wavelength optical signal transmission system. This dispersion compensating fiber has a W shaped refractive index profile, and has a first core layer, a second core layer formed around the outside of the first core layer, and a cladding layer made of substantially pure silica formed around the outside of the second core layer. The first core layer is doped with germanium, so that its refractive index s increased by a proportional refractive index difference of about 2%. The second core layer is uniformly doped with fluorine, so that its refractive index is decreased by a proportional refractive index difference of about 0.58%. The ratio of the outer radius of the second core layer to the outer radius of the first core layer is about 2.5. The wavelength dispersion slope is in the negative region, the dispersion is made to be high negative dispersion, and moreover the dispersion slope compensation ratio from a wavelength of 1530 nm to a wavelength of 1570 nm is made to be a value close to the perfect dispersion ratio and about 0.75 to 1.25 thereof.
摘要翻译：提出了一种用于波长光信号传输系统中的色散补偿光纤。这种色散补偿光纤具有W形折射率分布，并且具有第一芯层，围绕第一芯层的外侧形成的第二芯层，以及形成在第二芯体外部的基本上纯的二氧化硅制成的包覆层层。第一芯层掺杂锗，使其折射率s增加约2％的比例折射率差。第二芯层均匀地掺杂氟，使其折射率降低大约0.58％的比例折射率差。第二芯层的外半径与第一芯层的外半径之比约为2.5。波长色散斜率在负区域，使色散变成高的负色散，此外，从1530nm的波长到1570nm的波长的色散斜率补偿比成为接近完全色散的值比例为约0.75至1.25。

16. 发明授权

US08181487B2 Optical fiber preform manufacturing method 有权
标题翻译：光纤预制棒制造方法
公开(公告)号：US08181487B2
公开(公告)日：2012-05-22
申请号：US12875167
申请日：2010-09-03
申请人： Ryuichi Sugizaki , Naomi Kumano , Iwao Shimotakahara , Harumi Inaba , Takeshi Yagi , Tomoya Shimizu , Toshio Kurashima , Kazuhide Nakajima
发明人： Ryuichi Sugizaki , Naomi Kumano , Iwao Shimotakahara , Harumi Inaba , Takeshi Yagi , Tomoya Shimizu , Toshio Kurashima , Kazuhide Nakajima
IPC分类号： C03B37/022
CPC分类号： C03B37/01231 , C03B37/0122 , C03B37/01234 , C03B2203/14 , C03B2203/42
摘要： An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits.
摘要翻译：一种光纤预制棒的制造方法，包括：在圆筒状的预成型件的径向上支撑钻孔夹具; 沿着预成型件的纵向方向移动钻具; 并且形成多个狭缝，每个狭缝沿长度方向延伸，每个狭缝从预成型件的外侧朝向预成型件的中心，以及多个孔，每个孔沿纵向延伸并且各自与多个孔中的一个连接在所述多个狭缝中的一个狭缝的深度方向上的狭缝。

17. 发明申请

US20100296786A1 OPTICAL FIBERS 有权
标题翻译：光纤
公开(公告)号：US20100296786A1
公开(公告)日：2010-11-25
申请号：US12768095
申请日：2010-04-27
申请人： Iwao SHIMOTAKAHARA , Ryuichi Sugizaki , Takeshi Yagi
发明人： Iwao SHIMOTAKAHARA , Ryuichi Sugizaki , Takeshi Yagi
IPC分类号： G02B6/036
CPC分类号： G02B6/02347 , G02B6/02019
摘要： An optical fiber suitable for high-capacity transmission having a large effective core area, a low bending loss, and capable of single mode operation at 1550 nm is provided. The optical fiber 10 has an effective core area≧175 μm2 at 1550 nm, a bending loss≦10 dB/m at a bending diameter of 20 mm at 1550 nm, and a cut-off wavelength λc≦1550 nm. The optical fiber has a first core 11 at the center, which has a refractive index higher than that of the cladding 13; and a second core 12 around the first core 11, which has a refractive index lower than that of the cladding 13; a primary medium portion; and secondary medium portions, which have a refractive index lower than that of the primary medium portion and the secondary medium portions have a plurality of first secondary medium portions 15 around the first core 11 and a plurality of second secondary medium portions 16 around the first core 11 and outside of the first secondary medium portions 15.
摘要翻译：提供了适合于具有大的有效核心区域，低弯曲损耗并且能够在1550nm下进行单模操作的大容量传输的光纤。光纤10在1550nm具有≥175μm2的有效核心面积，弯曲损耗＆nlE;在1550nm处的弯曲直径为20mm时为10dB / m，截止波长λc＆nlE为1550nm。该光纤具有中心处的第一芯11，折射率高于包层13的折射率; 以及围绕第一芯体11的折射率低于包层13的折射率的第二芯体12; 主介质部分; 并且具有比初级介质部分和次级介质部分的折射率低的折射率的第二介质部分具有围绕第一芯体11的多个第一次级介质部分15和围绕第一芯部的多个第二次级介质部分16 11和第一次级介质部分15的外部。

18. 发明授权

US07505659B2 Optical fiber and optical transmission line and optical communication system including such optical fiber 有权
标题翻译：光纤和光传输线以及包括这种光纤的光通信系统
公开(公告)号：US07505659B2
公开(公告)日：2009-03-17
申请号：US12213509
申请日：2008-06-20
申请人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
发明人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/00
CPC分类号： G02B6/03688 , G02B6/02009 , G02B6/02028 , G02B6/02233 , G02B6/02238 , G02B6/02242 , G02B6/02271 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/03661 , G02B6/03677 , G02B6/29376 , H04B10/25253
摘要： Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430 nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.
摘要翻译：用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤，具有以下特性和参数：波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1450nm至1625nm，波长1550nm处的绝对值为0.04ps / nm 2 / km以下的色散斜率，波长1550nm的模场直径为7μm以下，电缆截止波长为小于1430nm; 芯11由包层7包围，芯11为至少两层（中心为第一层1，围绕第一层的第二层2;玻璃层Delta1相对于包层的相对折射率调整为不小于0.6 但不超过1.6％，相对于包层将第二层Delta2的相对折射率调整为负值。

19. 发明申请

US20090052848A1 OPTICAL FIBER, OPTICAL FIBER RIBBON, AND OPTICAL INTERCONNECTION SYSTEM 有权
标题翻译：光纤，光纤光纤和光纤互连系统
公开(公告)号：US20090052848A1
公开(公告)日：2009-02-26
申请号：US12257462
申请日：2008-10-24
申请人： Iwao SHIMOTAKAHARA , Harumi Inaba , Ryuichi Sugizaki
发明人： Iwao SHIMOTAKAHARA , Harumi Inaba , Ryuichi Sugizaki
IPC分类号： G02B6/44 , G02B6/028
CPC分类号： G02B6/0288 , G02B6/14 , G02B6/43 , G02B6/4403
摘要： An optical fiber has a refractive index profile approximated by n(r)=n1[1−2(Δ1/100)(r/a)̂α]1/2 when 0
摘要翻译：当0

20. 发明申请

US20080292257A1 Optical fiber and optical transmission line and optical communication system including such optical fiber 有权
标题翻译：光纤和光传输线以及包括这种光纤的光通信系统
公开(公告)号：US20080292257A1
公开(公告)日：2008-11-27
申请号：US12213509
申请日：2008-06-20
申请人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
发明人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/036
CPC分类号： G02B6/03688 , G02B6/02009 , G02B6/02028 , G02B6/02233 , G02B6/02238 , G02B6/02242 , G02B6/02271 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/03661 , G02B6/03677 , G02B6/29376 , H04B10/25253
摘要： Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430 nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.
摘要翻译：用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤，具有以下特性和参数：波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1450nm至1625nm，波长1550nm处的绝对值为0.04ps / nm 2 / km以下的色散斜率，波长1550nm的模场直径为7μm以下，电缆截止波长为小于1430nm; 芯11由包层7包围，芯11为至少两层（中心为第一层1，围绕第一层的第二层2;玻璃层Delta1相对于包层的相对折射率调整为不小于0.6 但不超过1.6％，相对于包层将第二层Delta2的相对折射率调整为负值。

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