公开(公告)号：US20050123257A1

公开(公告)日：2005-06-09

申请号：US11028628

申请日：2005-01-05

申请人： Florent Beaumont ,  Maxime Gorlier ,  Pierre Sillard ,  Ludovic Fleury ,  Louis-Anne Montmorillon ,  Pascale Nouchi

发明人： Florent Beaumont ,  Maxime Gorlier ,  Pierre Sillard ,  Ludovic Fleury ,  Louis-Anne Montmorillon ,  Pascale Nouchi

IPC分类号： G02B6/036 ,  H04J14/00 ,  G02B6/22

CPC分类号： G02B6/02019 ,  G02B6/02009 ,  G02B6/02223 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/0228 ,  G02B6/03611 ,  G02B6/03688

摘要： The invention proposes an optical fiber presenting a reference index profile having more than six steps. At a wavelength of 1550 nm it presents chromatic dispersion that is positive, and a ratio of the square of effective area over chromatic dispersion slope that is greater than 100,000 μm4.nm2.km/ps. The invention makes it possible to improve the propagation characteristics of prior art fibers by optimizing index profile. It can be implemented using conventional techniques for building up preforms by VAD or by MCVD.

公开(公告)号：US08983260B2

公开(公告)日：2015-03-17

申请号：US13017089

申请日：2011-01-31

申请人： Pierre Sillard ,  Denis Molin

发明人： Pierre Sillard ,  Denis Molin

IPC分类号： G02B6/36 ,  G02B6/02 ,  G02B6/036

CPC分类号： G02B6/02019 ,  G02B6/02271 ,  G02B6/0228 ,  G02B6/0365 ,  G02B6/03683

摘要： A non-zero dispersion shifted optical fiber (NZDSF) includes a central core, an inner cladding, and an outer cladding. The central core has an outer radius r1 and a maximum refractive index difference Dn1 with respect to the outer cladding. The inner cladding includes a first intermediate cladding and a buried trench. The first intermediate cladding has an outer radius r2 and a refractive index difference Dn2 with respect to the outer cladding. The buried trench has an outer radius r3, a width w3, and a negative refractive index difference Dn3 with respect to the outer cladding. In some embodiments, the inner cladding includes a second intermediate cladding having an outer radius r4 and a refractive index difference Dn4 with respect to the outer cladding. For a radius of curvature of 30 millimeters at a wavelength of 1625 nanometers, the optical fiber typically exhibits bending losses of about 0.5 dB/100 turns or less. At a wavelength of 1550 nanometers, the optical fiber's effective area is typically about 95 μm2 or greater.

摘要翻译： 非零色散位移光纤（NZDSF）包括中心芯，内包层和外包层。 中心纤芯具有相对于外包层的外半径r1和最大折射率差Dn1。 内包层包括第一中间包层和埋入沟槽。 第一中间包层具有相对于外包层的外半径r2和折射率差Dn2。 埋沟具有相对于外包层的外半径r3，宽度w3和负折射率差Dn3。 在一些实施例中，内部包层包括具有外半径r 4和相对于外包层的折射率差Dn4的第二中间包层。 对于波长为1625纳米的30毫米的曲率半径，光纤通常表现出约0.5dB / 100圈或更小的弯曲损耗。 在1550纳米的波长下，光纤的有效面积通常为约95μm2或更大。

公开(公告)号：US08891074B2

公开(公告)日：2014-11-18

申请号：US13275921

申请日：2011-10-18

申请人： Denis Molin ,  Pierre Sillard

发明人： Denis Molin ,  Pierre Sillard

IPC分类号： G01N21/00 ,  G01M11/00 ,  G02B6/028 ,  G01M11/08 ,  G02B6/036

CPC分类号： G02B6/0288 ,  G01M11/088 ,  G01M11/338 ,  G02B6/03638

摘要： A method of selecting a multimode optical fiber includes determining a first modal bandwidth value BW for each of a plurality of multimode optical fibers in a straight position and determining a second modal bandwidth value bBW for each of a plurality of multimode optical fibers in a bent position. Typically, the method includes selecting the multimode optical fibers for which the second modal bandwidth value bBW is greater than a threshold bandwidth A. The threshold bandwidth A may be (i) a function of the multimode optical fiber's first modal bandwidth value BW and a bending-loss value BL and (ii) greater than the multimode optical fiber's first modal bandwidth value BW.

摘要翻译： 选择多模光纤的方法包括：在直线位置确定多个多模光纤中的每一个的第一模式带宽值BW，并且在弯曲位置中确定多个多模光纤中的每一个的第二模式带宽值bBW 。 通常，该方法包括选择第二模式带宽值bBW大于阈值带宽A的多模光纤。阈值带宽A可以是（i）多模光纤的第一模态带宽值BW和弯曲的函数 - 值（BL）和（ii）大于多模光纤的第一模态带宽值BW。

公开(公告)号：US08798424B2

公开(公告)日：2014-08-05

申请号：US13491953

申请日：2012-06-08

申请人： Marianne Bigot-Astruc ,  Pierre Sillard

发明人： Marianne Bigot-Astruc ,  Pierre Sillard

IPC分类号： G02B6/036 ,  G02B6/02

CPC分类号： G02B6/03666 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2203/23 ,  G02B6/03616 ,  G02B6/03661 ,  G02B6/03688

摘要： A single-mode optical fiber includes a central core surrounded by an outer optical cladding. The optical fiber includes an inner depressed cladding, a ring, and an outer depressed cladding positioned between the central core and the outer optical cladding. The central core typically has a refractive-index difference (Dn1) with the outer optical cladding of between about −0.5×10−3 and 0.5×10−3. The ring typically has an inner radius (rring1) of between about 21 microns and 35 microns and a refractive-index difference with the outer optical cladding (Dnring) of between about −0.5×10−3 and 0.5×10−3. The outer depressed cladding typically has a volume (Vout) of between about 15 μm2 and 30 μm2. The ratio of the volume of the central core over the width of the ring (Vcore/wring) is typically between about 0.12 micron and 0.2 micron.

摘要翻译： 单模光纤包括由外部光学包层围绕的中心芯。 光纤包括位于中心芯和外部光学包层之间的内部凹陷包层，环和外部凹陷包层。 中心芯通常具有折射率差（Dn1），外部光学包层在约-0.5×10-3和0.5×10-3之间。 该环通常具有介于约21微米至35微米之间的内半径（rring1）和与外光学包层（Dnring）的折射率差在约-0.5×10-3至0.5×10-3之间。 外部凹陷包层通常具有在约15μm2和30μm2之间的体积（Vout）。 中心纤芯在环宽度上的体积比（Vcore /拧）通常在约0.12微米至0.2微米之间。

公开(公告)号：US08724950B2

公开(公告)日：2014-05-13

申请号：US13217467

申请日：2011-08-25

申请人： Denis Molin ,  Yves Lumineau ,  Pierre Sillard ,  Ralph Petrus Johannes Adrianus Van Lankveld ,  Koen de Jongh

发明人： Denis Molin ,  Yves Lumineau ,  Pierre Sillard ,  Ralph Petrus Johannes Adrianus Van Lankveld ,  Koen de Jongh

IPC分类号： G02B6/028

CPC分类号： G02B6/03627 ,  G02B6/0288

摘要： A multimode optical fiber comprises a central core having an alpha profile, a depressed cladding having a portion in continuity with the alpha profile of the central core and a stepped portion, and an outer cladding. The alpha profile is obtained by co-doping at least two dopants. A multimode fiber for Ethernet optical system with an improved bandwidth is thus obtained.

摘要翻译： 多模光纤包括具有α轮廓的中心纤芯，凹陷的包层具有与中心纤芯的α轮廓和台阶部分连续的部分和外包层。 通过共掺杂至少两种掺杂剂获得α分布。 因此获得了具有改进带宽的以太网光学系统的多模光纤。

公开(公告)号：US08644664B2

公开(公告)日：2014-02-04

申请号：US13362357

申请日：2012-01-31

申请人： Denis Molin ,  Marianne Bigot-Astruc ,  Pierre Sillard ,  Koen de Jongh ,  Frans Gooijer

发明人： Denis Molin ,  Marianne Bigot-Astruc ,  Pierre Sillard ,  Koen de Jongh ,  Frans Gooijer

IPC分类号： G02B6/028

CPC分类号： G02B6/0288 ,  G02B6/0281 ,  G02B6/0365 ,  G02B6/03661 ,  G02B6/03666

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 optical cladding. The optical fiber also includes an inner cladding and a buried trench. The central core includes a core matrix doped with at least fluorine and a dopant element that increases refractive index. The optical fiber typically has reduced bending losses and cladding effect as well as a high bandwidth at the wavelengths of 850 nanometers and 1300 nanometers for high-data-rate applications.

摘要翻译： 本发明包括一种光纤，其包括相对于外部光学包层具有α折射率分布的中心纤芯。 光纤还包括内包层和埋入沟槽。 中心芯包括掺杂至少氟的芯基质和增加折射率的掺杂剂元素。 在高数据速率应用中，光纤通常具有减小的弯曲损耗和包层效应以及波长为850纳米和1300纳米的高带宽。

公开(公告)号：US08432539B2

公开(公告)日：2013-04-30

申请号：US13603930

申请日：2012-09-05

申请人： Asghar Gholami ,  Denis Molin ,  Pierre Sillard ,  Yves Lumineau

发明人： Asghar Gholami ,  Denis Molin ,  Pierre Sillard ,  Yves Lumineau

IPC分类号： G01N21/00

CPC分类号： G02B6/0288 ,  G01M11/338

摘要： A method of classifying a graded-index multimode optical fiber includes taking a series of individual measurements at a single wavelength, and using the measurements to characterize the departure of the multimode optical fiber's actual index profile from the corresponding nominal index profile. The measurements, coupled with intermodal dispersion or EMB measurement, may be used to predict the approximate transmission properties of the optical fiber at wavelengths other than the measurement wavelength. It is desirable for a graded-index multimode optical fiber to possess, at a wavelength of 850 nanometers, a radial offset bandwidth of at least 6000 MHz·km for all radial offsets between 0 and about 70 percent of the radius of the optical fiber's core.

摘要翻译： 对渐变折射率多模光纤进行分类的方法包括在单个波长下进行一系列单独的测量，并且使用这些测量来表征多模光纤的实际折射率分布与相应的标称折射率分布的偏离。 与多模式色散或EMB测量相结合的测量可用于预测光纤在测量波长以外的波长处的近似透射特性。 理想的是，渐变折射率多模光纤在850纳米的波长下具有至少6000MHz·km的径向偏移带宽，用于光纤芯的半径的0和约70％之间的所有径向偏移 。

公开(公告)号：US08428411B2

公开(公告)日：2013-04-23

申请号：US13048028

申请日：2011-03-15

申请人： Louis-Anne de Montmorillon ,  Simon Richard ,  Pierre Sillard

发明人： Louis-Anne de Montmorillon ,  Simon Richard ,  Pierre Sillard

IPC分类号： G02B6/028 ,  G02B6/036

CPC分类号： G02B6/0281 ,  G02B6/02242 ,  G02B6/0365

摘要： The present invention embraces a single-mode optical fiber typically having reduced bending losses. The optical fiber includes a central core, an intermediate cladding, a buried trench, and an outer cladding. The optical fiber typically has (i), at a wavelength of 1310 nanometers, a mode field diameter with a nominal value of between about 8.6 microns and 9.5 microns (and a tolerance of ±0.4 micron), (ii) a cable cut-off wavelength of no more than 1260 nanometers, and (iii), for a bending radius of 15 millimeters at a wavelength of 1550 nanometers, bending losses of no more than 0.03 dB/turn.

摘要翻译： 本发明包括通常具有减小的弯曲损耗的单模光纤。 光纤包括中心芯，中间包层，埋入沟槽和外包层。 光纤通常具有（i）在1310纳米的波长处，标称值在约8.6微米至9.5微米之间的模场直径（以及±0.4微米的公差），（ii）电缆截止 波长不大于1260纳米，（iii）对于波长为1550纳米的15毫米的弯曲半径，弯曲损耗不超过0.03分贝/转。

公开(公告)号：US08391661B2

公开(公告)日：2013-03-05

申请号：US13362395

申请日：2012-01-31

申请人： Denis Molin ,  Marianne Bigot-Astruc ,  Pierre Sillard ,  Koen de Jongh

发明人： Denis Molin ,  Marianne Bigot-Astruc ,  Pierre Sillard ,  Koen de Jongh

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。

公开(公告)号：US20120301093A1

公开(公告)日：2012-11-29

申请号：US13481150

申请日：2012-05-25

申请人： Pierre Sillard ,  Marianne Bigot-Astruc

发明人： Pierre Sillard ,  Marianne Bigot-Astruc

IPC分类号： G02B6/036 ,  G02B6/02

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。