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11. 发明授权

US06574407B2 Chromatic dispersion compensation in an optical fiber transmission system, and a compensation fiber 有权
标题翻译：光纤传输系统中的色散补偿和补偿光纤
公开(公告)号：US06574407B2
公开(公告)日：2003-06-03
申请号：US09975959
申请日：2001-10-15
申请人： Pierre Sillard , Maxime Gorlier , Louis-Anne de Montmorillon , Ludovic Fleury , Florent Beaumont , Pascale Nouchi
发明人： Pierre Sillard , Maxime Gorlier , Louis-Anne de Montmorillon , Ludovic Fleury , Florent Beaumont , Pascale Nouchi
IPC分类号： G02B602
CPC分类号： H04B10/2525 , G02B6/02261 , G02B6/0228 , G02B6/0281 , G02B6/03644 , G02B6/29377
摘要： The invention proposes providing an optical fiber transmission system with a dispersion compensating fiber 12l to 12n to compensate the chromatic dispersion and chromatic dispersion slope of the line fiber 6l to 6n; the dispersion compensating fiber satisfies the following criteria: C g C g ′ × 1 1 + C cum / ( L g · C g ′ · Δ ⁢ ⁢ λ ) ≤ C C ′ ≤ C g C g ′ × 1 1 - C cum / ( L g · C g ′ · Δ ⁢ ⁢ λ ) ( 1 ) &LeftBracketingBar; C ′ C ′′ &RightBracketingBar; ≥ Max ⁡ ( Δ ⁢ ⁢ λ 2 × ( C · C g ′ C ′ · C g × ( 1 ± C cum L g · C g ′ · Δ ⁢ ⁢ λ ) - 1 ) - 1 ) ( 2 ) where C, C′ et C″ are the chromatic dispersion, the chromatic dispersion slope and the first derivative of the chromatic dispersion slope of the dispersion compensating fiber, Cg and C′g are the chromatic dispersion and the chromatic dispersion slope of the line fiber, Ccum is the upper limit of the modulus of the cumulative chromatic dispersion in the transmission system, Lg is the length of a line fiber section, and &Dgr;&lgr; is half the bandwidth of the transmission system. The invention also proposes optical fibers verifying the above criteria and suitable for compensating the chromatic dispersion of step index or dispersion shifted line fiber. The proposed criteria compensate chromatic dispersion and chromatic dispersion slope in wideband transmission systems, e.g. in C band and L band transmission systems, for wavelengths from 1530 to 1620 nm.
摘要翻译：本发明提供一种具有色散补偿光纤12l至12n的光纤传输系统，以补偿线路光纤161至6n的色散和色散斜率; 色散补偿光纤满足以下标准：其中C，C'和C“是色散，色散补偿光纤的色散斜率和色散斜率的一阶导数Cg和C'g是色度色散和色散斜率，Ccum是传输系统中累积色散的模数的上限，Lg是线光纤部分的长度，DELTAlambd是传输系统带宽的一半。本发明还提出了验证上述标准并适用于补偿阶跃折射率或色散位移线光纤的色散的光纤。所提出的准则补偿宽带传输系统中的色散和色散斜率，例如在C波段和L波段传输系统中，对于1530至1620nm的波长。

12. 发明授权

US06668120B2 Fiber for compensating the chromatic dispersion of an NZ-DSF having positive chromatic dispersion 有权
公开(公告)号：US06668120B2
公开(公告)日：2003-12-23
申请号：US09976012
申请日：2001-10-15
申请人： Pierre Sillard , Maxime Gorlier , Louis-Anne de Montmorillon , Ludovic Fleury , Florent Beaumont , Pascale Nouchi
发明人： Pierre Sillard , Maxime Gorlier , Louis-Anne de Montmorillon , Ludovic Fleury , Florent Beaumont , Pascale Nouchi
IPC分类号： G02B602
CPC分类号： G02B6/02261 , G02B6/0281 , G02B6/03644 , G02B6/29377 , H04B10/2525
摘要： A chromatic dispersion-compensating fiber adapted to compensate the chromatic dispersion of an SMF or an NZ-DSF having positive chromatic dispersion presents chromatic dispersion which is negative and greater than or equal to −150 ps/(nm.km) at a wavelength of 1550 nm, and a theoretical cutoff wavelength longer than 1800 nm. At 1550 nm, the fiber presents a ratio of chromatic dispersion over chromatic dispersion slope lying in the range 30 nm to 500 nm. The fiber can present a rectangle or a trapezium profile together with a buried trench and a ring. It can be used in a line or in a module to compensate the chromatic dispersion and the chromatic dispersion slope in transmission systems in which the line fiber is an SMF or an NZ-DSF having positive chromatic dispersion.

13. 发明授权

US06633714B2 Optical fiber for wavelength division multiplex transmission systems 有权
标题翻译：用于波分复用传输系统的光纤
公开(公告)号：US06633714B2
公开(公告)日：2003-10-14
申请号：US09938532
申请日：2001-08-27
申请人： Louis-Anne de Montmorillon , Pascale Nouchi , Ludovic Fleury , Pierre Sillard , Florent Beaumont , Maxime Gorlier
发明人： Louis-Anne de Montmorillon , Pascale Nouchi , Ludovic Fleury , Pierre Sillard , Florent Beaumont , Maxime Gorlier
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02242 , G02B6/02271 , G02B6/02285 , G02B6/0281 , G02B6/03644
摘要： An optical fiber exhibiting monomode behavior in-cable over a range from 1300 nm to 1625 nm and having, at a wavelength of 1550 nm: a dispersion from 5 to 11 ps/(nm.km); a ratio between dispersion and dispersion slope from 250 nm to 370 nm; a derivative of effective surface area with respect to wavelength less than or equal to 0.14%/nm; a chromatic dispersion cancellation wavelength &lgr;0 less than or equal to 1370 nm; and an effective surface area greater than or equal to 50 &mgr;m2. The proposed criteria limit variations in non-linear effects in the fiber over a wide range of wavelengths and limit the dispersion to be compensated; also, the fiber can be compensated in a transmission system by chromatic dispersion compensating fiber used conventionally for stepped index fiber. The limit on the effective surface area slope avoids the need to treat individually the various wavelengths used in the transmission system.
摘要翻译：在1300nm至1625nm的范围内呈现单线性行为的光纤，并且在1550nm的波长处具有5至11ps /（nm.km）的色散; 色散和色散斜率之间的比例从250 nm到370 nm; 相对于波长小于或等于0.14％/ nm的有效表面积的衍生物; 小于或等于1370nm的色散消除波长λ 0 和有效表面积大于或等于50um <2 。所提出的标准限制了在宽波长范围内的光纤中非线性效应的变化，并限制待补偿的色散; 而且，光纤可以通过传统上用于阶梯折射率光纤的色散补偿光纤在传输系统中进行补偿。有效表面积斜率的限制避免了单独处理传输系统中使用的各种波长的需要。

14. 发明授权

US06591050B2 Fiber for compensating chromatic dispersion of a monomode fiber in band S 有权
公开(公告)号：US06591050B2
公开(公告)日：2003-07-08
申请号：US09974904
申请日：2001-10-12
申请人： Ludovic Fleury , Florent Beaumont , Pierre Sillard , Louis-Anne de Montmorillon , Maxime Gorlier , Pascale Nouchi
发明人： Ludovic Fleury , Florent Beaumont , Pierre Sillard , Louis-Anne de Montmorillon , Maxime Gorlier , Pascale Nouchi
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02261 , G02B6/0228 , G02B6/0281 , G02B6/03644 , G02B6/29377
摘要： A chromatic dispersion-compensating fiber adapted to compensate the chromatic dispersion of a step index monomode fiber in band S presents chromatic dispersion of less than −40 ps/(nm.km) around 1475 nm, chromatic dispersion slope of less than −0.16 ps/(nm2.km), and an effective area greater than or equal to 14 &mgr;m2 around said wavelength value. The fiber is monomode at 1475 nm. The fiber can present a rectangle profile with a buried trench and a ring. It serves to compensate chromatic dispersion and chromatic dispersion slope for transmission systems in band S using a step index monomode fiber as the line fiber.

15. 发明授权

US06910351B2 Method of fabricating an optical fiber with controlled transmission characteristics 失效
标题翻译：制造具有受控传输特性的光纤的方法
公开(公告)号：US06910351B2
公开(公告)日：2005-06-28
申请号：US09852651
申请日：2001-05-11
申请人： Ludovic Fleury , Louis-Anne de Montmorillon , Pierre Sillard , Pascale Nouchi , Max Matau
发明人： Ludovic Fleury , Louis-Anne de Montmorillon , Pierre Sillard , Pascale Nouchi , Max Matau
IPC分类号： C03B37/025 , C03B37/02 , C03B37/07
CPC分类号： C03B37/0253 , C03B2203/06 , C03B2203/18 , C03B2205/40 , C03B2205/42 , C03B2205/44
摘要： The invention relates to a method of fabricating an optical fiber with improved control of transmission characteristics. It proposes determining variations in the characteristics of the preform departing from the design characteristics and modifying the diameter of the fiber during drawing as a function of the measured variations. By varying the diameter of the fiber, variations in the preform departing from its design values can be compensated, in other words irregularities of the preform can be smoothed out. This variation limits the effect of preform variations on the propagation characteristics of the fiber.
摘要翻译：本发明涉及一种具有改进的传输特性控制制造光纤的方法。它提出了根据设计特征确定预成型件特性的变化，并根据测量的变化改变拉伸过程中纤维的直径。通过改变纤维的直径，可以补偿预制件中偏离其设计值的变化，换句话说，预成型件的不规则性可以被平滑化。这种变化限制了预制变形对纤维传播特性的影响。

16. 发明授权

US06813426B2 Fiber with continuously changing chromatic dispersion 失效
标题翻译：光纤具有不断变化的色散
公开(公告)号：US06813426B2
公开(公告)日：2004-11-02
申请号：US10208779
申请日：2002-08-01
申请人： Ludovic Fleury , Louis-Anne de Montmorillon , Pierre Sillard , Pascale Nouchi
发明人： Ludovic Fleury , Louis-Anne de Montmorillon , Pierre Sillard , Pascale Nouchi
IPC分类号： G02B602
CPC分类号： G02B6/02247 , G02B6/02242 , G02B6/02261 , G02B6/02266 , G02B6/03644 , H04B10/25253
摘要： The invention provides a fiber with continuously changing chromatic dispersion; it limits the quantity of dispersion-compensating fiber needed in a transmission system to compensate the cumulative chromatic dispersion in the line fiber. The fiber has a higher chromatic dispersion at a first end than at the other end, referred to as the second end. The chromatic dispersion varies along the fiber, decreasing over at least a portion of the fiber. At the first end the chromatic dispersion can be of the order of the dispersion of a conventional line fiber, i.e. close to 8 ps/(nm.km). At the second end the chromatic dispersion can have a value of the order of 4 ps/(nm.km). The fiber is used as the line fiber in a transmission system at the beginning of a section between two repeaters. The chromatic dispersion in the vicinity of the first end limits non-linear effects at the beginning of the section; the decrease of the chromatic dispersion in the fiber ensures that at its second end the fiber can be connected to a fiber having lower chromatic dispersion. The fiber can be produced with an index profile in the shape of a rectangle and a ring by varying only the indices, and not the radii.
摘要翻译：本发明提供一种具有不断变化的色散的光纤; 它限制了传输系统中所需的色散补偿光纤的数量，以补偿线路光纤中的累积色散。光纤在第一端具有比在另一端更高的色散，称为第二端。色散沿着纤维变化，在纤维的至少一部分上减小。在第一端，色散可以是常规线光纤的色散的顺序，即接近8ps /（nm·km）。在第二端，色散可以具有4ps /（nm·km）量级的值。光纤在两个中继器之间的部分开始处用作传输系统中的线路光纤。第一端附近的色散限制了该段开始时的非线性效应; 纤维中的色散的降低确保了在其第二端，光纤可以连接到具有较低色散的光纤。纤维可以通过仅改变指数而不是半径而以矩形和环的形状产生折射率分布。

17. 发明授权

US06612756B1 Dispersion shifted fiber for wavelength division multiplex fiber optic transmission systems 有权
标题翻译：用于波分复用光纤传输系统的色散位移光纤
公开(公告)号：US06612756B1
公开(公告)日：2003-09-02
申请号：US09471025
申请日：1999-12-23
申请人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
发明人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
IPC分类号： G02B622
CPC分类号： G02B6/03644 , G02B6/02014 , G02B6/02271 , G02B6/0228
摘要： An in-cable monomode optical fiber has a step and ring index profile and, for a wavelength of 1,550 nm: an effective surface area greater than or equal to 60 &mgr;m2, a chromatic dispersion from 3 to 14 ps/(nm.km), a chromatic dispersion slope from 0 to 0.1 ps/(nm2.km), and a ratio between the effective surface area and the chromatic dispersion slope greater than 900 &mgr;m2.nm2.km/ps.
摘要翻译：在线单模光纤具有阶跃和环形折射率分布，并且对于波长为1,550nm的有效表面积大于或等于60mum2，3至14ps /（nm.km）的色散， 0至0.1ps /（nm2.km）的色散斜率，有效表面积与色散斜率之比大于900m22.km2.ps。

18. 发明授权

US06263138B1 Optical fiber for compensating chromatic dispersion of a positive chromatic dispersion optical fiber 有权
标题翻译：用于补偿正色散光纤的色散的光纤
公开(公告)号：US06263138B1
公开(公告)日：2001-07-17
申请号：US09372087
申请日：1999-08-11
申请人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
发明人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
IPC分类号： G02B626
CPC分类号： G02B6/02009 , G02B6/02261 , G02B6/03644
摘要： An optical fiber for compensating chromatic dispersion of a positive chromatic dispersion optical fiber has at a wavelength of 1 550 nm a chromatic dispersion less than −40 ps/(nm.km), a ratio between the chromatic dispersion and the chromatic dispersion slope in the range from 50 nm to 230 nm, an effective area greater than or equal to 12 &mgr;m2 and curvature losses less than or equal to 0.05 dB. It is used for in-line compensation of cumulative chromatic dispersion in a positive chromatic dispersion line fiber. A fiber optic transmission system is also disclosed using a fiber of this kind to compensate the cumulative chromatic dispersion in the line fiber.
摘要翻译：用于补偿正色散光纤的色散的光纤在波长为1 550nm时的色散小于-40ps /（nm.km），色散与色散斜率之比在范围为50nm至230nm，有效面积大于或等于12mum2，曲率损耗小于或等于0.05dB。用于在正色散线光纤中的累积色散的在线补偿。还公开了使用这种光纤来补偿线路光纤中的累积色散的光纤传输系统。

19. 发明授权

US06628873B1 Dispersion shifted fiber for wavelength division multiplex fiber optic transmission systems 有权
标题翻译：用于波分复用光纤传输系统的色散位移光纤
公开(公告)号：US06628873B1
公开(公告)日：2003-09-30
申请号：US09722059
申请日：2000-11-27
申请人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
发明人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
IPC分类号： G02B602
CPC分类号： G02B6/02014 , G02B6/02271 , G02B6/0228 , G02B6/03644
摘要： The present invention relates to an in-cable monomode optical fiber comprising an optical core surrounded by optical cladding, said optical core presenting an index profile constituted by a stepped central part, surrounded by an intermediate zone of refractive index less than that of said central part, itself surrounded by an annular zone having refractive index less than that of said central part and greater than that of said intermediate zone, said fiber having, for a wavelength of 1550 nm, a chromatic dispersion slope in the range 0 to 0.1 ps/nm2·km, said fiber being characterized in that it further presents the following features for a wavelength of 1550 nm: an effective surface area greater than or equal to 60 &mgr;m2, a chromatic dispersion in the range 3 ps/(nm·km) to 14 ps/(nm·km), and a ratio between the effective surface area and the chromatic dispersion slope greater than 900 &mgr;m2·nm2·km/ps.
摘要翻译：本发明涉及一种包含由光学包层围绕的光学核心的光纤内单模光纤，所述光纤芯呈现由阶梯状中心部分构成的折射率分布，由折射率小于所述中心部分的折射率中间区域包围本身被折射率小于所述中心部分的折射率的环形区域包围，并且大于所述中间区域的环形区域，所述光纤对于波长为1550nm具有在0至0.1ps / nm范围内的色散斜率所述光纤的特征在于其进一步具有1550nm波长的以下特征：有效表面积大于或等于60μm2，色散在3ps /（ nm.km）至14ps /（nm.km），并且有效表面积与色散斜率之比大于900mum.2nm .2nm / km。

20. 发明授权

US06643438B1 Optical fiber with compensation of chromatic dispersion 有权
标题翻译：光纤补偿色散
公开(公告)号：US06643438B1
公开(公告)日：2003-11-04
申请号：US09649095
申请日：2000-08-28
申请人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
发明人： Pierre Sillard , Louis-Anne de Montmorillon , Ludovic Fleury , Pascale Nouchi
IPC分类号： G02B626
CPC分类号： G02B6/02009 , G02B6/02261 , G02B6/03644
摘要： An optical fiber is disclosed for compensating the chromatic dispersion of on optical fiber with positive chromatic dispersion advantageously has, at a wavelength of 1 550 nm, a chromatic dispersion less than −40 ps/(nm.km), or even less than −50 ps/(nm.km), a ratio between the chromatic dispersion and the chromatic dispersion slope from 50 nm to 230 nm, an effective surfaced area greater than 12 &mgr;m2 and curvature losses less than or equal to 0.05 dB. It is used for in-line compensation of cumulative chromatic dispersion in a line fiber with positive chromatic dispersion. Also disclosed is a fiber optic transmission system using a fiber of the above kind to compensate cumulative chromatic dispersion in the line fiber.
摘要翻译：公开了一种用于补偿具有正色散的光纤上的色散的光纤，有利地在波长为1 550nm处的色散小于-40ps /（nm.km），或甚至小于-50 ps /（nm.km），色散和色散斜率之间的比例为50nm至230nm，有效表面积大于12mum 2，曲率损耗小于或等于0.05dB。用于具有正色散的线光纤中的累积色散的在线补偿。还公开了使用上述光纤的光纤传输系统来补偿线路光纤中的累积色散。

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