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公开(公告)号：US08867879B2
公开(公告)日：2014-10-21
申请号：US13175181
申请日：2011-07-01
CPC分类号： G02B6/02019 , G02B6/0281 , G02B6/0365
摘要： A single-mode optical fiber includes a central core, an intermediate cladding, a buried trench, and optical cladding. The central core has an outer radius r1 and a refractive index difference Δn1 relative to the optical cladding. The intermediate cladding has an outer radius r2 and a refractive index difference Δn2 relative to the optical cladding. The buried trench has an outer radius r3 and a refractive index difference Δn3 relative to the optical cladding. The optical fiber typically has an effective area of about 150 μm2 or greater at a wavelength of 1550 nanometers and exhibits low bending losses.
摘要翻译： 单模光纤包括中心芯，中间包层，埋入沟槽和光学包层。 中心芯具有相对于光学包层的外半径r1和折射率差Dgr; n1。 中间包层具有相对于光学包层的外半径r2和折射率差Dgr; n2。 掩埋沟槽具有相对于光学包层的外半径r3和折射率差Dgr; n3。 光纤通常在1550纳米的波长下通常具有约150μm2或更大的有效面积，并表现出低的弯曲损耗。
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公开(公告)号：US08798423B2
公开(公告)日：2014-08-05
申请号：US13481150
申请日：2012-05-25
IPC分类号： G02B6/36 , C03B37/025 , G02B6/036 , C03B37/012
CPC分类号： G02B6/0365 , C03B37/01211 , C03B37/01413 , C03B37/01807 , C03B37/01861 , C03B2201/02 , C03B2201/12 , G02B6/03605 , G02B6/03627 , G02B6/03666
摘要： A single-mode optical fiber includes a central core surrounded by an outer cladding. The optical fiber includes at least first and second depressed claddings positioned between the central core and the outer cladding. The central core typically has a radius of between about 3.5 microns and 5.5 microns and a refractive-index difference with the outer cladding of between about −1×10−3 and 3×10−3. The first depressed cladding typically has an outer radius of between about 9 microns and 15 microns and a refractive-index difference with the outer cladding of between about −5.5×10−3 and −2.5×10−3. The second depressed cladding typically has an outer radius of between about 38 microns and 42 microns and a refractive-index difference with the first depressed cladding of between about −0.5×10−3 and 0.5×10−3.
摘要翻译： 单模光纤包括由外包层包围的中心芯。 光纤包括位于中心芯和外包层之间的至少第一和第二凹陷包层。 中心芯通常具有在约3.5微米至5.5微米之间的半径，并且与外包层的折射率差在约-1×10-3至3×10-3之间。 第一凹陷包层通常具有在约9微米至15微米之间的外半径，并且与外包层的折射率差在约-5.5×10-3和-2.5×10-3之间。 第二凹陷包层通常具有介于约38微米和42微米之间的外半径，并且与第一凹陷包层的折射率差在约-0.5×10-3和0.5×10-3之间。
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公开(公告)号：US08565568B2
公开(公告)日：2013-10-22
申请号：US13037943
申请日：2011-03-01
IPC分类号： G02B6/036
CPC分类号： G02B6/03666 , G02B6/0288 , G02B6/0365
摘要： A multimode optical fiber includes a central core, an inner cladding, a buried trench, and an outer cladding (e.g., an outer optical cladding). Typically, the optical fiber's central core is a glass-based central core having an alpha-index profile (i.e., a graded-index profile), an outer radius r1, and a maximum refractive index difference Δn1 with respect to the outer cladding. The central core's alpha-index profile has a minimum refractive index at the central core's outer radius r1 that corresponds to a refractive index difference Δnend with respect to the outer cladding. The inner cladding has an outer radius r2, a width w2, and a refractive index difference Δn2 with respect to the outer cladding. The buried trench has an outer radius rext, a width w3, and a refractive index difference Δn3 with respect to the outer cladding. The multimode optical fiber typically has reduced bending losses, a high bandwidth at wavelengths of both 850 nanometers and 1300 nanometers, and a reduced cladding effect.
摘要翻译： 多模光纤包括中心芯，内包层，埋入沟槽和外包层（例如，外光学包层）。 通常，光纤的中心芯是具有相对于外包层的α折射率分布（即渐变折射率分布），外半径r1和最大折射率差Deltan1的基于玻璃的中心芯。 中心芯的α折射率分布在中心芯的外半径r1处具有最小折射率，其对应于相对于外包层的折射率差Deltanend。 内包层具有相对于外包层的外半径r2，宽度w2和折射率差Deltan2。 掩埋沟槽具有相对于外包层的外半径rext，宽度w3和折射率差Deltan3。 多模光纤通常具有减小的弯曲损耗，在850纳米和1300纳米的波长处的高带宽以及降低的包层效应。
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公开(公告)号：US08488931B2
公开(公告)日：2013-07-16
申请号：US12902190
申请日：2010-10-12
申请人： Marianne Bigot-Astruc , Pierre Sillard , Louis-Anne De Montmorillon , Denis Molin , Simon Richard
发明人： Marianne Bigot-Astruc , Pierre Sillard , Louis-Anne De Montmorillon , Denis Molin , Simon Richard
CPC分类号： G02B6/0365 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/23 , G02B6/03683 , G02B6/03688
摘要： An optical fiber having a core and an outer cladding, the core including from its center outward a central core having a radius and a refractive index difference with respect to the outer cladding, and a depressed inner cladding. The depressed inner cladding includes at least a first portion having a radius and a refractive index difference with respect to the outer cladding, the first portion preferably being adjacent to the central core, and a second portion adjacent to the first portion constituting a depressed trench having a radius, and a refractive index difference with respect to the outer cladding. The first portion of the inner cladding has a refractive index below the refractive index of the outer cladding, and the depressed trench has a refractive index that is lower than the refractive index of the first portion of the depressed inner cladding. The outer radius of the depressed inner cladding of the optical fiber is between 28 μm and 40 μm, the LP01 mode leakage losses at a wavelength of 1550 nm are less than 0.01 dB/km and the cable cut-off wavelength is less than 1530 nm.
摘要翻译： 具有芯和外包层的光纤，所述芯从其中心向外包括具有相对于外包层的半径和折射率差的中心芯和凹陷的内包层。 凹陷的内包层至少包括具有相对于外包层的半径和折射率差的第一部分，第一部分优选地邻近中心芯，以及与构成凹陷槽的第一部分相邻的第二部分， 半径和相对于外包层的折射率差。 内包层的第一部分的折射率低于外包层的折射率，并且凹槽的折射率低于凹陷的内包层的第一部分的折射率。 光纤的凹陷内包层的外半径在28μm和40μm之间，1550nm波长处的LP01模式泄漏损耗小于0.01dB / km，电缆截止波长小于1530nm 。
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公开(公告)号：US08428414B2
公开(公告)日：2013-04-23
申请号：US13429825
申请日：2012-03-26
申请人： Louis-Anne de Montmorillon , Simon Richard , Denis Molin , David Boivin , Marianne Bigot-Astruc , Pierre Sillard
发明人： Louis-Anne de Montmorillon , Simon Richard , Denis Molin , David Boivin , Marianne Bigot-Astruc , Pierre Sillard
IPC分类号： G02B6/36
CPC分类号： G02B6/0365 , G02B6/02266 , G02B6/02395
摘要： A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r1 and a positive refractive index difference Δn1 with the optical cladding. The intermediate cladding has a radius r2 and a refractive index difference Δn2 with the optical cladding, wherein Δn2 is less than Δn1. The depressed trench has a radius r3 and a negative index difference Δn3 with the optical cladding. At a wavelength of 1310 nanometers, the optical fiber has a mode field diameter (MFD) between 8.6 microns and 9.5 microns and, at a wavelength of 1550 nanometers, the optical fiber has bending losses less than about 0.25×10−3 dB/turn for a radius of curvature of 15 millimeters. At a wavelength of 1260 nanometers, attenuation of the LP11 mode to 19.3 dB is achieved over less than 90 meters of fiber.
摘要翻译： 单模光纤包括中心芯，中间包层，凹陷沟槽和外部光学包层。 中心芯具有与光学包层的半径r1和正折射率差Deltan1。 中间包层具有半径r2和与光学包层的折射率差Deltan2，其中Deltan2小于Deltan1。 凹陷沟槽具有与光学包层的半径r3和负折射率差Deltan3。 在1310纳米的波长处，光纤具有在8.6微米和9.5微米之间的模场直径（MFD），并且在1550纳米的波长处，光纤具有小于约0.25×10 -3 dB /转的弯曲损耗 半径为15毫米。 在1260纳米的波长下，在不到90米的光纤上，LP11模式的衰减达到19.3 dB。
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6.发明授权公开(公告)号：US08406593B2
公开(公告)日：2013-03-26
申请号：US12959688
申请日：2010-12-03
IPC分类号： G02B6/028
CPC分类号： G02B6/0288 , G02B6/03627 , G02B6/0365
摘要： The present invention embraces an optical fiber that includes a central core having an alpha-index profile with respect to an outer cladding. The optical fiber also includes an inner cladding, a depressed trench, and an outer cladding. Typically, the alpha-index profile of the central core is interrupted at a point having a positive refractive index difference with respect to the outer cladding. The optical fiber achieves reduced bending losses and a high bandwidth with a reduced cladding effect for high-data-rate applications.
摘要翻译： 本发明包括一种光纤，其包括相对于外包层具有α-折射率分布的中心芯。 光纤还包括内包层，凹陷沟槽和外包层。 通常，中心芯的α折射率分布在相对于外包层具有正折射率差的点处中断。 光纤在高数据速率应用中实现了减少的弯曲损耗和高带宽，降低了包层效应。
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公开(公告)号：US20120251062A1
公开(公告)日：2012-10-04
申请号：US13434101
申请日：2012-03-29
IPC分类号： G02B6/028
CPC分类号： G02B6/0288 , G02B6/0281 , G02B6/0365
摘要： A multimode optical fiber includes a central core surrounded by an outer cladding. The central core has a graded-index profile with respect to the outer cladding and an outer radius r1 of between about 22 microns and 28 microns. The optical fiber also includes an inner cladding positioned between the central core and the outer cladding, and a depressed trench positioned between the inner cladding and the outer cladding. The multimode optical fiber exhibits reduced bending losses.
摘要翻译： 多模光纤包括由外包层包围的中心芯。 中心纤芯具有相对于外包层的渐变折射率分布，以及在约22微米与28微米之间的外半径r1。 光纤还包括位于中心芯和外包层之间的内包层，以及位于内包层和外包层之间的凹陷沟槽。 多模光纤表现出减小的弯曲损耗。
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公开(公告)号：US08280213B2
公开(公告)日：2012-10-02
申请号：US12953948
申请日：2010-11-24
申请人： Denis Molin , Pierre Sillard
发明人： Denis Molin , Pierre Sillard
IPC分类号： G02B6/036
CPC分类号： G02B6/0288 , G02B6/0365
摘要： The present invention embraces an optical fiber that includes a central core having an alpha refractive index profile with respect to an outer cladding. The optical fiber also includes an inner cladding, a depressed trench, and an outer cladding. The optical fiber achieves reduced bending losses and a high bandwidth with a reduced cladding effect for high-data-rate applications.
摘要翻译： 本发明包括一种光纤，其包括相对于外包层具有α折射率分布的中心芯。 光纤还包括内包层，凹陷沟槽和外包层。 光纤在高数据速率应用中实现了减少的弯曲损耗和高带宽，降低了包层效应。
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公开(公告)号：US20120195561A1
公开(公告)日：2012-08-02
申请号：US13362395
申请日：2012-01-31
IPC分类号： G02B6/028
CPC分类号： G02B6/0288
摘要： A multimode optical fiber includes a central core having a graded-index profile with a delta value of about 1.9 percent or greater. The graded-index core profile has at least two different alpha parameter values along the core radius, namely a first value in an inner zone of the central core and a second value in an outer zone of the central core. The second alpha parameter value is typically less than the first alpha parameter value. The graded-index core profile and its first derivative are typically substantially continuous over the width of the graded-index core.
摘要翻译： 多模光纤包括具有等级折射率分布的中心核心，Δ值为约1.9％或更大。 渐变折射率芯轮廓具有沿芯部半径的至少两个不同的α参数值，即中心纤芯的内部区域中的第一个值，以及中心纤芯的外部区域中的第二个值。 第二个Alpha参数值通常小于第一个alpha参数值。 渐变折射率芯轮廓及其一阶导数通常在渐变折射率芯的宽度上基本连续。
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公开(公告)号：US20120051703A1
公开(公告)日：2012-03-01
申请号：US13175181
申请日：2011-07-01
IPC分类号： G02B6/028
CPC分类号： G02B6/02019 , G02B6/0281 , G02B6/0365
摘要： A single-mode optical fiber includes a central core, an intermediate cladding, a buried trench, and optical cladding. The central core has an outer radius r1 and a refractive index difference Δn1 relative to the optical cladding. The intermediate cladding has an outer radius r2 and a refractive index difference Δn2 relative to the optical cladding. The buried trench has an outer radius r3 and a refractive index difference Δn3 relative to the optical cladding. The optical fiber typically has an effective area of about 150 μm2 or greater at a wavelength of 1550 nanometers and exhibits low bending losses.
摘要翻译： 单模光纤包括中心芯，中间包层，埋入沟槽和光学包层。 中心芯具有相对于光学包层的外半径r1和折射率差Dgr; n1。 中间包层具有相对于光学包层的外半径r2和折射率差Dgr; n2。 掩埋沟槽具有相对于光学包层的外半径r3和折射率差Dgr; n3。 光纤通常在1550纳米的波长下通常具有约150μm2或更大的有效面积，并表现出低的弯曲损耗。
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