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31. 发明授权

US07046885B2 Optical fiber, Raman amplifier, and optical communication system 有权
标题翻译：光纤，拉曼放大器和光通信系统
公开(公告)号：US07046885B2
公开(公告)日：2006-05-16
申请号：US10674343
申请日：2003-10-01
申请人： Ryuichi Sugizaki , Takeshi Yagi
发明人： Ryuichi Sugizaki , Takeshi Yagi
IPC分类号： G02B6/16
CPC分类号： G02B6/02271 , G02B6/02004 , G02B6/03644 , H01S3/302
摘要： An optical fiber, which is employed as a transmission line of an optical communication system, has a cable-cutoff wavelength of not longer than 1430 nanometers at the wavelength of 1450 nanometers, a mode-field diameter of not less than 7 micrometers and not more than 9 micrometers, a transmission loss of not more than 0.285 dB/km, and a dispersion of 0.1 to 4 ps/nm/km.
摘要翻译：用作光通信系统的传输线的光纤在1450纳米的波长处具有不长于1430纳米的电缆截止波长，模场直径不小于7微米，而不是更多传输损耗不大于0.285dB / km，色散为0.1〜4ps / nm / km。

32. 发明授权

US07046433B2 Optical fiber, and optical module and Raman amplifier using the optical fiber 失效
标题翻译：光纤，以及使用光纤的光模块和拉曼放大器
公开(公告)号：US07046433B2
公开(公告)日：2006-05-16
申请号：US10747180
申请日：2003-12-30
申请人： Ryuichi Sugizaki , Takeshi Yagi
发明人： Ryuichi Sugizaki , Takeshi Yagi
IPC分类号： H01S3/00 , G02B6/10
CPC分类号： H01S3/302 , H01S3/06729
摘要： The present invention provides an optical fiber having dispersion of −8 ps/nm/km or less at a wavelength of 1460 nm including a reference layer which is a reference of a refractive index profile and at least three glass layers that exist inside the reference layer, characterized in that when it is assumed that the maximum relative refractive index difference of the first glass layer formed innermost of the at least three glass layers with respect to the reference layer is Δ1, the relative refractive index difference of the second glass layer formed second from the inside with respect to the reference layer is Δ2, the relative refractive index difference of the third glass layer formed third from the inside with respect to the reference layer is Δ3 and the relative refractive index difference of the reference layer with respect to pure quartz glass is ΔC, Δ1>Δ3>Δ2, Δ1≧1.0% and ΔC
摘要翻译：本发明提供一种在1460nm波长下具有-8ps / nm / km或更小的色散的光纤，包括参考层，该参考层是折射率分布的参考，并且至少三个玻璃层存在于参考层内其特征在于，当假定形成在至少三个玻璃层中最内侧的第一玻璃层相对于基准层的最大相对折射率差为Δ1时，形成的第二玻璃层的相对折射率差相对于参考层，从内部的第二个是Δ2，相对于参考层，从第三个内部形成的第三玻璃层的相对折射率差为Delta 3，参考层的相对折射率差相对于到纯石英玻璃是DeltaC，Delta1> Delta3> Delta2，Delta1> = 1.0％和DeltaC <0，并且还提供光学模块和Ra 人体放大器使用光纤。

33. 发明申请

US20050024711A1 Optical fiber, optical fiber module, and raman amplifier 有权
标题翻译：光纤，光纤模块和拉曼放大器
公开(公告)号：US20050024711A1
公开(公告)日：2005-02-03
申请号：US10871052
申请日：2004-06-21
申请人： Ryuichi Sugizaki , Yuki Taniguchi , Takeshi Yagi
发明人： Ryuichi Sugizaki , Yuki Taniguchi , Takeshi Yagi
IPC分类号： G02F1/35 , G02B6/028 , G02B6/036 , H01S3/00 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/30 , H04B10/17
CPC分类号： G02B6/02028 , G02B6/0281 , G02B6/03627 , G02B6/03644 , H01S3/005 , H01S3/0064 , H01S3/06729 , H01S3/06754 , H01S3/094003 , H01S3/0941 , H01S3/302 , H04B10/2916
摘要： An optical fiber has a Raman gain efficiency with a pump power at 1450 nanometers of equal to or more than 4 m/W, and a ratio of a nonlinear parameter γ at a wavelength of 1550 nanometers to the Raman gain efficiency with a pump power of 1450 nanometers is equal to or less than 3.
摘要翻译：光纤具有拉曼增益效率，泵功率在1450纳米等于或大于4m / W，而波长1550纳米的非线性参数γ与拉曼增益效率的比值与泵浦功率 1450纳米等于或小于3。

34. 发明授权

US07715674B2 Optical fiber and waveguide 有权
标题翻译：光纤和波导
公开(公告)号：US07715674B2
公开(公告)日：2010-05-11
申请号：US11908975
申请日：2006-03-20
申请人： Ryo Miyabe , Ryuichi Sugizaki
发明人： Ryo Miyabe , Ryuichi Sugizaki
IPC分类号： G02B6/02 , G02B6/036
CPC分类号： G02B6/02361 , G02B6/02214 , G02B6/02357 , G02B6/30
摘要： An optical fiber in which the macro-bending loss is lowered while an MFD is maintained large, and a waveguide including the optical fiber. The optical fiber includes a core region doped with an impurity; a first cladding region formed as a layer around the core region and including holes as microstructures; and a second cladding region formed as a layer around the first cladding region and made of a homogeneous material. A relative refractive-index difference Δ1 between the core region and the second cladding region is equal to or higher than 0.01% and lower than 0.3%. A total cross-sectional area of the holes in the first cladding region with respect to a total cross-sectional area of the core region, the first cladding region, and the second cladding region is equal to or smaller than 20%. A waveguide is formed using the optical fiber.
摘要翻译：其中在MFD维持较大时宏观弯曲损耗降低的光纤和包括光纤的波导。光纤包括掺杂有杂质的芯区; 形成为芯区域周围的层并且包括作为微结构的孔的第一包层区域; 以及形成为第一包层区域周围的层并由均匀材料制成的第二包层区域。芯区域和第二包层区域之间的相对折射率差Dgr1为0.01％以上且低于0.3％。相对于芯区域，第一包层区域和第二包层区域的总截面积，第一包层区域中的孔的总横截面面积等于或小于20％。使用光纤形成波导。

35. 发明授权

US07164830B2 Nonlinear optical fiber and optical signal processing apparatus using the optical fiber 有权
标题翻译：使用光纤的非线性光纤和光信号处理装置
公开(公告)号：US07164830B2
公开(公告)日：2007-01-16
申请号：US11128209
申请日：2005-05-13
申请人： Jiro Hiroishi , Ryo Miyabe , Ryuichi Sugizaki , Naomi Kumano
发明人： Jiro Hiroishi , Ryo Miyabe , Ryuichi Sugizaki , Naomi Kumano
IPC分类号： G02B6/02 , G02B6/024
CPC分类号： G02B6/03666 , G02B6/02028 , G02B6/02242 , G02B6/024 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02F1/365
摘要： The present invention provides an optical fiber of a high nonlinear characteristic which has low dispersion values in a wide wavelength region in the vicinity of a wavelength of 1550 nm. An excellent optical signal processing apparatus is realized by using this optical fiber, such as an optical wavelength converter and a pulse compressor. The optical fiber has characteristics; a dispersion slope at the wavelength of 1550 nm of −0.01 to 0.01 ps/nm2/km, an absolute value of dispersion at the wavelength of 1550 nm of 10 ps/nm/km or less, and a nonlinear constant at the wavelength of 1550 nm of 30×10−10/W or more. A polarization retaining maintaining members are uniquely applied.
摘要翻译：本发明提供一种高非线性特性的光纤，在波长1550nm附近的宽波长区域中具有低色散值。通过使用光纤如光波长转换器和脉冲压缩器来实现优良的光信号处理装置。光纤具有特性; 波长1550nm处的色散斜率为-0.01至0.01ps / nm 2 / km，波长1550nm处的色散的绝对值为10ps / nm / km或更小，以及在1550nm波长处的非线性常数为30×10 -10 / W以上。一种偏振保持元件是独特的。

36. 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。

37. 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。

38. 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。

39. 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。

40. 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。

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