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公开(公告)号：US20070116417A1
公开(公告)日：2007-05-24
申请号：US11474416
申请日：2006-06-26
申请人： Kazuhiko Aikawa , Katsuaki Izoe , Kazuyuki Hayashi , Manabu Kudoh
发明人： Kazuhiko Aikawa , Katsuaki Izoe , Kazuyuki Hayashi , Manabu Kudoh
IPC分类号： G02B6/02
CPC分类号： G01C19/722 , G02B6/24
摘要： A polarization-maintaining optical fiber comprises: a core; a pair of stress-applying parts disposed one at each side of the core; and a cladding which surrounds the core and the stress-applying parts; wherein when the polarization-maintaining optical fiber is used at a wavelength of 0.81 μm to 0.87 μm, a cut-off wavelength measured with a fiber length of 2 m is longer than the wavelength used and polarization crosstalk when a fiber having a length of 1,000 m is wound on a reel having a diameter of 40 mm is equal to or less than −35 dB/100 m.
摘要翻译： 偏振保持光纤包括：芯; 一对在所述芯的每一侧设置的应力施加部; 以及包围芯和应力部分的包层; 其中，当波长为0.81μm至0.87μm的偏振波保持光纤使用时，光纤长度为2μm的截止波长比所使用的波长长和长度为1000的光纤时的极化串扰 m卷绕在直径为40mm的卷轴上等于或小于-35dB /100μm。
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公开(公告)号：US08641274B2
公开(公告)日：2014-02-04
申请号：US13112457
申请日：2011-05-20
申请人： Koji Omichi , Yoshihiro Terada , Yutaka Endoh , Kazuyuki Hayashi , Katsuaki Izoe , Kazuhiko Aikawa , Manabu Kudoh
发明人： Koji Omichi , Yoshihiro Terada , Yutaka Endoh , Kazuyuki Hayashi , Katsuaki Izoe , Kazuhiko Aikawa , Manabu Kudoh
CPC分类号： G02B6/024 , G01K11/3206 , G01L1/246
摘要： The polarization-maintaining fiber of the invention includes a core (1) made of germanium doped silica glass; a stress-applying part (3) made of boron doped silica glass; a cladding (2) made of pure silica glass; and a polyimide coating layer (4) with a thickness of 10 μm or less that surrounds the outer periphery of the cladding (2).
摘要翻译： 本发明的偏振保持光纤包括由锗掺杂石英玻璃制成的芯（1）; 由硼掺杂的石英玻璃制成的应力施加部分（3） 由纯石英玻璃制成的包层（2） 以及包围包层（2）的外周的厚度为10μm以下的聚酰亚胺涂层（4）。
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公开(公告)号：US20120044971A1
公开(公告)日：2012-02-23
申请号：US13112457
申请日：2011-05-20
申请人： Koji OMICHI , Yoshihiro Terada , Yutaka Endoh , Kazuyuki Hayashi , Katsuaki Izoe , Kazuhiko Aikawa , Manabu Kudoh
发明人： Koji OMICHI , Yoshihiro Terada , Yutaka Endoh , Kazuyuki Hayashi , Katsuaki Izoe , Kazuhiko Aikawa , Manabu Kudoh
CPC分类号： G02B6/024 , G01K11/3206 , G01L1/246
摘要： The polarization-maintaining fiber of the invention includes a core (1) made of germanium doped silica glass; a stress-applying part (3) made of boron doped silica glass; a cladding (2) made of pure silica glass; and a polyimide coating layer (4) with a thickness of 10 μm or less that surrounds the outer periphery of the cladding (2).
摘要翻译： 本发明的偏振保持光纤包括由锗掺杂石英玻璃制成的芯（1）; 由硼掺杂石英玻璃制成的应力施加部分（3） 由纯石英玻璃制成的包层（2） 以及围绕包层（2）的外周的厚度为10μm以下的聚酰亚胺涂层（4）。
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公开(公告)号：US07430353B2
公开(公告)日：2008-09-30
申请号：US11474416
申请日：2006-06-26
申请人： Kazuhiko Aikawa , Katsuaki Izoe , Kazuyuki Hayashi , Manabu Kudoh
发明人： Kazuhiko Aikawa , Katsuaki Izoe , Kazuyuki Hayashi , Manabu Kudoh
IPC分类号： G02B6/02
CPC分类号： G01C19/722 , G02B6/24
摘要： A polarization-maintaining optical fiber comprises: a core; a pair of stress-applying parts disposed one at each side of the core; and a cladding which surrounds the core and the stress-applying parts; wherein when the polarization-maintaining optical fiber is used at a wavelength of 0.81 μm to 0.87 μm, a cut-off wavelength measured with a fiber length of 2 m is longer than the wavelength used and polarization crosstalk when a fiber having a length of 1,000 m is wound on a reel having a diameter of 40 mm is equal to or less than −35 dB/100 m.
摘要翻译： 偏振保持光纤包括：芯; 一对在所述芯的每一侧设置的应力施加部; 以及包围芯和应力部分的包层; 其中，当波长为0.81μm至0.87μm的偏振波保持光纤使用时，光纤长度为2μm的截止波长比所使用的波长长和长度为1000的光纤时的极化串扰 m卷绕在直径为40mm的卷轴上等于或小于-35dB /100μm。
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5.发明授权公开(公告)号：US07440673B2
公开(公告)日：2008-10-21
申请号：US11734695
申请日：2007-04-12
IPC分类号： G02B6/00
CPC分类号： G02B6/02 , C03B37/01446 , C03B37/01453 , C03B2201/12 , C03B2201/20 , C03C13/046
摘要： A radiation resistant single-mode optical fiber has a core and a cladding, each made of fluorine-doped silica glass, in which a chlorine concentration of the core is at least 0.01 ppm, a relative refractive index difference of the core based on the refractive index for silica is between −0.30% and −0.10%, a relative refractive index difference of the core based on the refractive index for the cladding is between 0.3% and 0.5%, a cutoff wavelength is 1.27 μm or below, and a bending loss at a wavelength of 1.3 μm and a bending diameter of 20 mm is 0.5 dB/m or less.
摘要翻译： 耐辐射单模光纤具有芯和包层，每个由氟掺杂的石英玻璃制成，其中芯的氯浓度至少为0.01ppm，基于折射率的芯的相对折射率差 二氧化硅的指数在-0.30％至-0.10％之间，基于包层的折射率的芯的相对折射率差为0.3％至0.5％，截止波长为1.27mum或更低，弯曲损耗 波长1.3μm，弯曲直径20mm为0.5dB / m以下。
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6.发明申请公开(公告)号：US20070274666A1
公开(公告)日：2007-11-29
申请号：US11734695
申请日：2007-04-12
IPC分类号： G02B6/00
CPC分类号： G02B6/02 , C03B37/01446 , C03B37/01453 , C03B2201/12 , C03B2201/20 , C03C13/046
摘要： A radiation resistant single-mode optical fiber has a core and a cladding, each made of fluorine-doped silica glass, in which a chlorine concentration of the core is at least 0.01 ppm, a relative refractive index difference of the core based on the refractive index for silica is between −0.30 and −0.10%, a relative refractive index difference of the core based on the refractive index for the cladding is between 0.3% and 0.5%, a cutoff wavelength is 1.27 μm or below, and a bending loss at a wavelength of 1.3 μm and a bending diameter of 20 mm is 0.5 dB/m or less.
摘要翻译： 耐辐射单模光纤具有芯和包层，每个由氟掺杂的石英玻璃制成，其中芯的氯浓度至少为0.01ppm，基于折射率的芯的相对折射率差 二氧化硅的指数在-0.30至-0.10％之间，基于包层的折射率的芯的相对折射率差为0.3％至0.5％，截止波长为1.27mum或更低，以及在 1.3μm的波长和20mm的弯曲直径为0.5dB / m以下。
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公开(公告)号：US20060034574A1
公开(公告)日：2006-02-16
申请号：US11178477
申请日：2005-07-12
IPC分类号： G02B6/032
CPC分类号： G02B6/02333 , G02B6/02357 , G02B6/02361 , G02B6/14
摘要： A hole-assisted holey fiber is provided. The holey fiber includes a core region; a cladding region around the core region, and a plurality of holes in the cladding region around the core region. The core region has a higher refractive index than that of the cladding region. The holes form an inner hole layer and an outer hole layer, and the inner hole layer has the same number of holes as the number of the holes in the outer hole layer. The outer layer holes are provided in locations in which inner holes are absent when viewed from the center of the core region, and holes defining the same layer have the same diameter. A distance Λ1 from a center of the core region to a center of an inner hole and a distance Λ2 from the center of the core region to a center of an outer hole satisfy the relationship Λ1
摘要翻译： 提供孔辅助多孔纤维。 多孔纤维包括芯区域; 围绕芯区域的包层区域，以及围绕芯区域的包层区域中的多个孔。 芯区域具有比包层区域更高的折射率。 孔形成内孔层和外孔层，内孔层的孔数与外孔层的孔数相同。 外层孔设置在从芯区域的中心观察时不存在内孔的位置，并且限定相同层的孔具有相同的直径。 从芯部区域的中心到内部孔的中心距离λ1到从芯部区域的中心到外部中心的距离λ2<2 < 孔的内径满足关系Lambda 1 N 2 N 2和内孔的直径d 1 N 2，直径d 2 < SUB>满足关系d <1> <= D 2 <2>。
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公开(公告)号：US07292762B2
公开(公告)日：2007-11-06
申请号：US11178477
申请日：2005-07-12
IPC分类号： G02B6/032
CPC分类号： G02B6/02333 , G02B6/02357 , G02B6/02361 , G02B6/14
摘要： A hole-assisted holey fiber is provided. The holey fiber includes a core region; a cladding region around the core region, and a plurality of holes in the cladding region around the core region. The core region has a higher refractive index than that of the cladding region. The holes form an inner hole layer and an outer hole layer, and the inner hole layer has the same number of holes as the number of the holes in the outer hole layer. The outer layer holes are provided in locations in which inner holes are absent when viewed from the center of the core region, and holes defining the same layer have the same diameter. A distance Λ1 from a center of the core region to a center of an inner hole and a distance Λ2 from the center of the core region to a center of an outer hole satisfy the relationship Λ1
摘要翻译： 提供孔辅助多孔纤维。 多孔纤维包括芯区域; 围绕芯区域的包层区域，以及围绕芯区域的包层区域中的多个孔。 芯区域具有比包层区域更高的折射率。 孔形成内孔层和外孔层，内孔层的孔数与外孔层的孔数相同。 外层孔设置在从芯区域的中心观察时不存在内孔的位置，并且限定相同层的孔具有相同的直径。 从芯部区域的中心到内部孔的中心距离λ1到从芯部区域的中心到外部中心的距离λ2<2 < 孔的内径满足关系Lambda 1 N 2 N 2和内孔的直径d 1 N 2，直径d 2 < SUB>满足关系d 1 > = d 2 2。
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公开(公告)号：US20050031280A1
公开(公告)日：2005-02-10
申请号：US10937495
申请日：2004-09-10
摘要： A polarization-maintaining optical fiber which exhibits an excellent polarization-maintaining performance and significantly low splice loss when spliced with a polarization-maintaining optical fiber having a cladding 125 μm in diameter even if the polarization-maintaining optical fiber has a small-diameter cladding of about 80 μm. The polarization-maintaining optical fiber includes a core, a pair of stress-applying parts provided radially outwardly with respect to the core, and a cladding which surrounds the core and the stress-applying parts. With a diameter D of the stress-applying parts between 21 μm and 32 μm, a distance R between the stress-applying parts between 6 μm and 17 μm, and a relative refractive index difference Δ between 0.3% to 0.5%, a sufficiently large mode field diameter (MFD) is obtained; thus splice loss can be reduced.
摘要翻译： 一种偏振保持光纤，其具有优异的偏振保持性能，并且即使在保偏光纤具有小直径包层的情况下，也具有直径为直径为100μm的具有包层直径为直径为100μm的保偏光纤 约80妈 偏振保持光纤包括芯，相对于芯径向向外设置的一对应力施加部以及围绕芯和应力施加部的包层。 应力施加部分的直径D在21μm和32μm之间，应力施加部分之间的距离R在6μm和17μm之间，相对折射率差值差值在0.3％至0.5％之间，足够大 获得模场直径（MFD）; 因此可以减少接头损耗。
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公开(公告)号：US07289687B2
公开(公告)日：2007-10-30
申请号：US10937495
申请日：2004-09-10
IPC分类号： G02B6/00
摘要： A polarization-maintaining optical fiber which exhibits an excellent polarization-maintaining performance and significantly low splice loss when spliced with a polarization-maintaining optical fiber having a cladding 125 μm in diameter even if the polarization-maintaining optical fiber has a small-diameter cladding of about 80 μm. The polarization-maintaining optical fiber includes a core, a pair of stress-applying parts provided radially outwardly with respect to the core, and a cladding which surrounds the core and the stress-applying parts. With a diameter D of the stress-applying parts between 21 μm and 32 μm, a distance R between the stress-applying parts between 6 μm and 17 μm, and a relative refractive index difference Δ between 0.3% to 0.5%, a sufficiently large mode field diameter (MFD) is obtained; thus splice loss can be reduced.
摘要翻译： 一种偏振保持光纤，其具有优异的偏振保持性能，并且即使在保偏光纤具有小直径包层的情况下，也具有直径为直径为100μm的具有包层直径为直径为100μm的保偏光纤 约80妈 偏振保持光纤包括芯，相对于芯径向向外设置的一对应力施加部以及围绕芯和应力施加部的包层。 应力施加部分的直径D在21μm和32μm之间，应力施加部分之间的距离R在6μm和17μm之间，相对折射率差值差值在0.3％至0.5％之间，足够大 获得模场直径（MFD）; 因此可以减少接头损耗。
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