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公开(公告)号:US20060198589A1
公开(公告)日:2006-09-07
申请号:US11271823
申请日:2005-11-14
申请人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
IPC分类号: G02B6/02
CPC分类号: G02B6/03627 , G02B6/02004 , G02B6/02009 , G02B6/02214 , G02B6/0281 , G02B6/03644 , G02B6/0365 , G02B6/4249
摘要: A mode field diameter of an optical fiber at a wavelength of 1300 nm is equal to or larger than 5.4 μm. A light of a wavelength of 1250 nm is propagated through the optical fiber in a single mode. A bending loss of the optical fiber with a bending radius of 1 mm at the wavelength of 1300 nm is equal to or lower than 1 dB/turn.
摘要翻译: 波长1300nm的光纤的模场直径等于或大于5.4μm。 波长为1250nm的光以单一模式传播通过光纤。 在1300nm波长处弯曲半径为1mm的光纤的弯曲损耗等于或低于1dB /匝。
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2.
公开(公告)号:US20060034575A1
公开(公告)日:2006-02-16
申请号:US11200100
申请日:2005-08-10
申请人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
IPC分类号: G02B6/036
CPC分类号: G02B6/0281 , G02B6/0288 , G02B6/03627 , G02B6/03644 , G02B6/0365 , G02B6/4436
摘要: An optical fiber includes a core and a cladding which are made from silica glass, allows single mode transmission at a wavelength of 1100 nm, and has a mode field diameter of not less than 4 μm at a wavelength of 1100 nm, and a bending loss of not more than 1 dB per turn with a curvature radius of 1 mm at a wavelength of 1100 nm.
摘要翻译: 光纤包括由石英玻璃制成的芯和包层,允许在1100nm的波长下的单模透射,并且在1100nm的波长下具有不小于4μm的模场直径,以及弯曲损耗 在1100nm的波长下的曲率半径为1mm的不超过每分钟1dB。
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公开(公告)号:US20060093297A1
公开(公告)日:2006-05-04
申请号:US11022752
申请日:2004-12-28
申请人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
CPC分类号: G02B6/02009 , G02B6/0281 , G02B6/03627 , G02B6/03644
摘要: Provided is a single-mode optical fiber that propagates an optical signal at a wavelength of 1310 nm, in single-mode operation; has a mode field diameter of 6.6 μm or more at the wavelength of 1310 nm; and a macro bending loss of at most 0.1 dB/10 turns with a bending radius of 7.5 mm at a wavelength of 1650 nm.
摘要翻译: 提供了在单模操作中传播1310nm波长的光信号的单模光纤; 在1310nm的波长下具有6.6μm以上的模场直径; 并且在1650nm的波长处的弯曲半径为7.5mm的宏弯曲损耗为0.1dB / 10圈以下。
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4.
公开(公告)号:US20090252468A1
公开(公告)日:2009-10-08
申请号:US11500958
申请日:2006-08-09
申请人: Ryuichi Sugizaki , Akifumi Sako , Takeshi Yagi
发明人: Ryuichi Sugizaki , Akifumi Sako , Takeshi Yagi
IPC分类号: G02B6/02 , C03B37/028 , C03B37/012
CPC分类号: C03B37/01217 , C03B2201/12 , C03B2203/12 , G02B6/02 , G02B6/4203
摘要: A method for manufacturing an optical fiber includes the steps of covering an outer periphery of a first glass (11) having a first softening temperature and a non-axisymmetric structure by a second glass (12, 13) having a second softening temperature which is lower than the first softening temperature, heating the first and second glasses (11, 12, 13) for fusion together to thereby obtain an optical fiber preform; and drawing the preform to the optical fiber.
摘要翻译: 制造光纤的方法包括以下步骤:通过具有第二软化温度较低的第二玻璃(12,13)覆盖具有第一软化温度和非轴对称结构的第一玻璃(11)的外周边 比第一软化温度加热第一和第二玻璃(11,12,13)以熔化在一起,从而获得光纤预制件; 并将预成型件拉制成光纤。
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5.
公开(公告)号:US07295741B2
公开(公告)日:2007-11-13
申请号:US11200100
申请日:2005-08-10
申请人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
IPC分类号: G02B6/36
CPC分类号: G02B6/0281 , G02B6/0288 , G02B6/03627 , G02B6/03644 , G02B6/0365 , G02B6/4436
摘要: An optical fiber includes a core and a cladding which are made from silica glass, allows single mode transmission at a wavelength of 1100 nm, and has a mode field diameter of not less than 4 μm at a wavelength of 1100 nm, and a bending loss of not more than 1 dB per turn with a curvature radius of 1 mm at a wavelength of 1100 nm.
摘要翻译: 光纤包括由石英玻璃制成的芯和包层,允许在1100nm的波长下的单模透射,并且在1100nm的波长下具有不小于4μm的模场直径,以及弯曲损耗 在1100nm的波长下的曲率半径为1mm的不超过每分钟1dB。
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公开(公告)号:US07366386B2
公开(公告)日:2008-04-29
申请号:US11271823
申请日:2005-11-14
申请人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
IPC分类号: G02B6/02
CPC分类号: G02B6/03627 , G02B6/02004 , G02B6/02009 , G02B6/02214 , G02B6/0281 , G02B6/03644 , G02B6/0365 , G02B6/4249
摘要: A mode field diameter of an optical fiber at a wavelength of 1300 nm is equal to or larger than 5.4 μm. A light of a wavelength of 1250 nm is propagated through the optical fiber in a single mode. A bending loss of the optical fiber with a bending radius of 1 mm at the wavelength of 1300 nm is equal to or lower than 1 dB/turn.
摘要翻译: 波长1300nm的光纤的模场直径等于或大于5.4μm。 波长为1250nm的光以单一模式传播通过光纤。 在1300nm波长处弯曲半径为1mm的光纤的弯曲损耗等于或低于1dB /匝。
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公开(公告)号:US07099545B2
公开(公告)日:2006-08-29
申请号:US11022752
申请日:2004-12-28
申请人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Ryuichi Sugizaki , Takeshi Yagi
CPC分类号: G02B6/02009 , G02B6/0281 , G02B6/03627 , G02B6/03644
摘要: Provided is a single-mode optical fiber that propagates an optical signal at a wavelength of 1310 nm, in single-mode operation; has a mode field diameter of 6.6 μm or more at the wavelength of 1310 nm; and a macro bending loss of at most 0.1 dB/10 turns with a bending radius of 7.5 mm at a wavelength of 1650 nm.
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公开(公告)号:US20090060432A1
公开(公告)日:2009-03-05
申请号:US11909162
申请日:2006-03-24
申请人: Akifumi Sako , Takuya Koyanagi , Ryuichi Sugizaki , Takeshi Yagi
发明人: Akifumi Sako , Takuya Koyanagi , Ryuichi Sugizaki , Takeshi Yagi
CPC分类号: G02B6/14 , G02B6/0288 , G02B6/3885 , G02B6/43 , G02B6/4403
摘要: An optical transmission medium includes a GI optical fiber that is made of silica glass. The GI optical fiber includes a core having a graded-index refractive index profile and a cladding formed around the core. The GI optical fiber is bent by equal to or more than a quarter turn with a curvature radius equal to or larger than 4 mm and equal to or smaller than 10 mm.
摘要翻译: 光传输介质包括由石英玻璃制成的GI光纤。 GI光纤包括具有渐变折射率分布的芯和围绕芯形成的包层。 GI光纤弯曲等于或大于四分之一转,曲率半径等于或大于4mm且等于或小于10mm。
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9.
公开(公告)号:US07574088B2
公开(公告)日:2009-08-11
申请号:US12124598
申请日:2008-05-21
CPC分类号: G02B6/03644 , G02B6/0281 , G02B6/03627 , G02B6/43 , G02B6/4403 , G02B6/4436
摘要: An optical fiber, made of silica-based glass, comprising a core and a cladding. The optical fiber having a mode field diameter of 6.5 μm or larger at a wavelength of 1300 nm, transmitting light with a wavelength of 1250 nm in a single mode, and having a bending loss of 1 dB/turn or smaller at a wavelength of 1300 nm when the optical fiber is bent with a curvature radius of 1.5 mm.
摘要翻译: 由二氧化硅基玻璃制成的光纤,包括芯和包层。 具有在1300nm波长下的模场直径为6.5μm或更大的光纤在单一模式下传输波长为1250nm的光,并且在波长1300处具有1dB /转或更小的弯曲损耗 当光纤以曲率半径为1.5mm弯曲时,nm为nm。
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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。
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