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公开(公告)号：US5892876A
公开(公告)日：1999-04-06
申请号：US860374
申请日：1997-06-25
CPC分类号： H01S3/06708 , C03C13/045 , H01S3/06729
摘要： The present invention relates to an optical fiber comprising an optical core (6) based on silica for guiding the majority of lightwaves and containing at least one fluorescent dopant, surrounded by optical cladding (5) likewise based on silica, and having a refractive index lower than that of said core, said core comprising: a central zone (2) of radius a.sub.0, containing said fluorescent dopant; and a peripheral zone (4) of radius a, surrounding said central zone, having a refractive index greater than that of said cladding, and not containing fluorescent dopant; the fiber being characterized in that said core (6) further comprises an intermediate zone (3) of radius a.sub.1 and having a softening temperature greater than that of central zone (2), said intermediate zone (3) being such that a.sub.0
摘要翻译： PCT No.PCT / FR96 / 01664 Sec。 371日期：1997年6月25日 102（e）日期1996年6月25日PCT 1996年10月24日PCT公布。 公开号WO97 / 16875 PCT 日期1997年5月9日本发明涉及一种光纤，其包括基于二氧化硅的光学芯（6），用于引导大多数光波并且包含至少一种荧光掺杂剂，其同样基于二氧化硅被光学包层（5）包围，并且具有 折射率低于所述芯的折射率，所述芯包括：半径为a0的中心区（2），包含所述荧光掺杂剂; 以及围绕所述中心区域的半径为+ E，ee + EE的周边区域（4），其折射率大于所述包层的折射率，并且不包含荧光掺杂剂; 所述纤维的特征在于，所述芯（6）还包括半径为a1的中间区（3），其软化温度大于中心区（2）的软化温度，所述中间区（3）使得a0 < 并且不含有任何荧光掺杂剂。
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公开(公告)号：US5364429A
公开(公告)日：1994-11-15
申请号：US917382
申请日：1992-07-23
申请人： Christian Le Sergent
发明人： Christian Le Sergent
IPC分类号： C03B37/012 , C03B37/018 , C03C13/04 , H01S3/067 , C03B37/023
CPC分类号： C03B37/01205 , C03B37/018 , C03C13/045 , H01S3/06708 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/32 , C03B2201/36 , C03B2203/22 , C03B2203/222 , C03B2203/223 , C03B2203/225 , C03B2203/23 , C03B2203/29
摘要： A method of manufacturing active optical fibers comprising preparing a preform and then drawing a fiber from the preform, wherein the method consists in using a preform having a doped peripheral outer zone, said zone being intended to constitute the outer cladding of the optical fiber, the doping of the peripheral zone giving it a refractive index greater than that of the optical cladding, and giving it a difference in softening temperature relative to that of the core of the optical fiber which is less than the difference that would exist if the outer zone were not doped.
摘要翻译： 一种制造有源光纤的方法，包括制备预成型件，然后从预成型件拉制纤维，其中该方法包括使用具有掺杂的外围外部区域的预制件，所述区域旨在构成光纤的外包层， 周边区域的掺杂使其具有大于光学包层的折射率的折射率，并且使其相对于光纤的纤芯的软化温度的差异小于如果外部区域为 不掺杂
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3.发明授权Method of making an internally-doped tube of transparent glass, in particular for manufacturing rare-earth-doped optical fibers 失效制造透明玻璃的内部掺杂管的方法，特别是用于制造稀土掺杂光纤的方法
公开(公告)号：US4952225A
公开(公告)日：1990-08-28
申请号：US257666
申请日：1988-10-14
IPC分类号： C03B37/00 , C03B37/018 , G02B6/00
CPC分类号： C03B37/01884 , C03B37/01838 , C03B2201/34
摘要： A mist is formed by an ultrasonic generator (5) from a liquid solution containing a dopant, and the mist is inserted into the tube blank to be doped (4) by means of a flexible pipe (2) in order to deposit microdrops on the inside surface of said tube blank. The flexible pipe is withdrawn progressively so that deposition takes place along the entire length of the tube blank. The deposit is dried and a new layer of glass is deposited thereon. The dopant from the deposit is heat diffused into the glass of the tube blank and of the new layer of glass. The invention is particularly applicable to fabricaitng rare-earth-doped silica preforms for the purpose of drawing optical fibers that can be used to constitute lasers or sensors.
摘要翻译： 通过超声波发生器（5）从含有掺杂剂的液体溶液形成雾，并且通过柔性管（2）将雾插入到管坯中以被掺杂（4），以便将微滴沉积在 所述管坯的内表面。 柔性管逐渐取出，使得沿着管坯的整个长度进行沉积。 沉积物被干燥并且在其上沉积新的玻璃层。 来自沉积物的掺杂剂被热扩散到管坯和新玻璃层的玻璃中。 本发明特别适用于制造用于制造可用于构成激光器或传感器的光纤的稀土掺杂二氧化硅预制件。
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4.发明授权
公开(公告)号：US5185847A
公开(公告)日：1993-02-09
申请号：US870305
申请日：1992-04-17
CPC分类号： H01S3/063 , G02B6/30 , H01S3/17 , H01S2302/00 , H01S2303/00
摘要： An optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range, comprising a solid substrate of fluoride glass doped with praseodymium in which a three-dimensional monomode waveguide is formed having an index difference .DELTA.n relative to the index of the fluoride glass lying in the range 4.times.10.sup.-3 and 8.times.10.sup.-2, said waveguide being associated by coupling means to an optical pump having a wavelength equal to 1.02 .mu.m .+-.0.1 .mu.m.
摘要翻译： 一种光放大器，在1.26μm至1.34μm的光谱范围内，包括掺杂有镨的氟化物玻璃的固体基底，其中形成三维单模波导，其相对于位于氟化物玻璃的指数具有指数差ΔTATAn 在4×10 -3和8×10 -2的范围内，所述波导通过耦合装置与波长等于1.02μm+/-0.1μm的光泵相关联。
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5.发明授权Method and device for depositing a layer of glass on the inner wall of a tube 失效用于在管的内壁上沉积玻璃层的方法和装置
公开(公告)号：US4117802A
公开(公告)日：1978-10-03
申请号：US827273
申请日：1977-08-24
CPC分类号： C03B37/018 , C23C16/045 , Y02P40/57
摘要： A reactive gaseous mixture which reacts in a localized heating zone to form a glass deposit on the inner wall of a tube is made to flow along the tube, and in the heating zone it is channelled around a cylindrical element which occupies much of the bore of the tube. The glass deposit is used for making glass fibres for telecommunications.
摘要翻译： 在局部加热区中反应以在管的内壁上形成玻璃沉积物的反应性气体混合物被制成沿着管流动，并且在加热区中，其被引导在圆柱形元件周围，圆柱形元件占据了 管子。 玻璃沉积物用于制造用于电信的玻璃纤维。
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6.发明授权Method and device for outside plasma deposition of hydroxyl ion-free silica 失效用于羟基无离子二氧化硅的外部等离子体沉积的方法和装置
公开(公告)号：US5194714A
公开(公告)日：1993-03-16
申请号：US533557
申请日：1990-06-05
申请人： Christian Le Sergent
发明人： Christian Le Sergent
IPC分类号： C03B37/018 , C03B20/00 , C03B37/014 , C03C17/245
CPC分类号： C03B37/01426 , C03B37/01413 , C03B2201/02 , C03B2201/12 , C03B2207/81
摘要： Method of outside plasma deposition onto a rod (17,22) of silica substantially free from hydroxyl ions, possibly doped to change its refractive index, by reaction with oxygen of a silicon compound and possibly of doping compounds, in the presence of a gas plasma raised to a very high temperature (16) by induction with the help of a high frequency generator (15). The rod on which the silica deposit is made is kept in a sealed chamber (19) separated from the surrounding atmosphere and supplied by a pipe (20) with atmospheric air that is successively passed through a filter (31), a compressor (32) a cooling means (33), a condensation water drain (35) and a final desiccation by adsorption (36, 38). A device for implementing the method is also claimed.
摘要翻译： 在气体等离子体存在下，通过与硅化合物的氧反应和可能的掺杂化合物的反应，外部等离子体沉积到基本上不含羟基离子的二氧化硅的棒（17,22）上，其可能被掺杂以改变其折射率 借助于高频发生器（15），通过感应升高到非常高的温度（16）。 将制备二氧化硅沉积物的棒保持在与周围大气分离的密封室（19）中，并通过管道（20）供应连续通过过滤器（31），压缩机（32）的大气， 冷却装置（33），冷凝水排放口（35）和通过吸附的最终干燥（36,38）。 还要求用于实现该方法的装置。
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公开(公告)号：US5154745A
公开(公告)日：1992-10-13
申请号：US677180
申请日：1991-03-29
申请人： Christian Le Sergent
发明人： Christian Le Sergent
IPC分类号： C03B37/014 , C03B37/018 , G02B6/00
CPC分类号： C03B37/01869 , C03B37/01426 , C03B37/01861 , C03B2201/12 , Y10S65/16
摘要： A method of fabricating preforms for making optical fibers by drawing, in which a silica deposit, including a doping agent, is formed in successive layers inside a silica-based tube (1) from a chemical vapor containing a gaseous compound of silicon, oxygen, and a gaseous compound of an element for doping the silica, with the composite tube then being subjected to collapsing so as to cause the empty axial zone (3), the tube hollow, to disappear. The silica of the initial tube is then eliminated, by removal, after which a recharge of silica (5) is made around the remaining cylinder (4) by plasma torch deposition from a gas comprising oxygen and a halogen derivative of silica.
摘要翻译： 一种制造用于制造光纤的预成型件的方法，其中包括掺杂剂的二氧化硅沉积物在二氧化硅基管（1）内由含有硅，氧气， 以及用于掺杂二氧化硅的元素的气态化合物，然后使复合管经受塌缩，从而导致管中空的空的轴向区域（3）消失。 然后通过去除除去初始管的二氧化硅，然后通过等离子体焰炬沉积从包含氧和二氧化硅的卤素衍生物的气体中在剩余圆筒（4）周围进行二氧化硅（5）的补给。
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公开(公告)号：US5192350A
公开(公告)日：1993-03-09
申请号：US648939
申请日：1991-02-01
申请人： Christian Le Sergent
发明人： Christian Le Sergent
IPC分类号： C03B29/02 , C03B37/012 , C03B37/018 , G02B6/00
CPC分类号： C03B37/01884 , C03B29/02 , C03B37/01228 , C03B37/01853 , C03B37/01876
摘要： A cylindrical piece of glass (4) is subjected to heating passes on a glassmaker's lathe. Possible opto-geometrical defects of said piece of glass are detected and measured and then said defects are corrected by machining the outside surface thereof during a correction pass performed on the same glassmaker's lathe.
摘要翻译： 圆柱形玻璃片（4）在玻璃制造车床上进行加热通过。 检测并测量所述玻璃片的可能的光学几何缺陷，然后通过在对相同的玻璃制造车间进行的校正通过期间对其外表面进行加工来校正所述缺陷。
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公开(公告)号：US4121919A
公开(公告)日：1978-10-24
申请号：US876371
申请日：1978-02-09
IPC分类号： C03B37/018 , G02B6/00 , G02B6/028 , C03C25/02 , C03B37/00
CPC分类号： C03B37/01869 , G02B6/03611
摘要： The blank is made from a tube of silica with a layer of other glass coated on its inner surface. The said other glass is doped with P.sub.2 O.sub.5 for example to increase its refractive index. The blank is then reduced in diameter from a tube to a rod by heating a region of the tube while it rotates in a glassmaker's lathe. The heated region is moved back and forth along the length of the tube until it is finally reduced to a rod. One effect of the moving heated zone is to evaporate some of the doping material, and the vapour tends to move along the tube ahead of the heated zone until it is eventually shifted out of the ends of the tube. To minimize this loss the back and the forth movement of the heated zone includes a sudden step forward at the end of each pass before returning in the opposite direction. This has the effect of jumping the heated zone ahead of the escaping doping material which is then pushed back along the bore of the tube for the next pass, with the jump-ahead-and-reverse operation being repeated at each reversing point of the back and forth heated pass to conserve as much of the doping material as possible inside the tube and finally within the resulting glass fibre blank.
摘要翻译： 坯料由二氧化硅管制成，其内部表面涂有其他玻璃层。 所述另一玻璃掺杂有例如P2O5以增加其折射率。 然后通过在玻璃制造商的车床中旋转的同时加热管的一部分，坯料从管直径减小到杆。 加热区域沿着管的长度来回移动，直到其最终被还原成杆。 移动的加热区域的一个效果是蒸发一些掺杂材料，并且蒸气倾向于沿加热区域前面的管移动，直到其最终移出管的端部。 为了最小化这种损失，加热区域的后部和第四运动包括在每次通过结束时向前相反的方向前进的向前的方向。 这具有在逸出的掺杂材料之前跳过加热区的作用，然后将其沿着管的孔推回以进行下一道次，其中在反向的每个反向点处重复跳跃前进和反向操作 并加热通过以在管内尽可能多地保留掺杂材料，最后在所得的玻璃纤维坯料内。
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公开(公告)号：US06175445B1
公开(公告)日：2001-01-16
申请号：US09305659
申请日：1999-05-05
IPC分类号： H01S300
CPC分类号： C03C13/04 , H01S3/06708 , H01S3/06729 , H01S3/1608 , H01S3/1693 , H01S2301/04
摘要： The invention relates to an optical fiber having a core based on silica with at least one fluorescent dopant distributed over the entire section of the core, a central zone co-doped with a co-dopant chosen from Al and P, and a peripheral zone co-doped with the other co-dopant chosen from Al and P. The invention can be used in an optical fiber amplifier, and it guarantees good amplifier gain flatness over a wavelength band suitable for WDM transmission.
摘要翻译： 本发明涉及一种光纤，其具有基于二氧化硅的核，其具有分布在芯的整个部分上的至少一种荧光掺杂剂，共掺杂有选自Al和P的共掺杂剂的中心区域和外围区域co 与选自Al和P的其他共掺杂剂掺杂。本发明可用于光纤放大器，并且在适合于WDM传输的波长带上保证良好的放大器增益平坦度。
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