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公开(公告)号：US06643442B2
公开(公告)日：2003-11-04
申请号：US10241615
申请日：2002-09-12
IPC分类号： G02B610
CPC分类号： H01S3/0632 , C03C3/06 , C03C3/078 , C03C3/095 , C03C4/04 , C03C13/045 , C03C13/046 , C03C2201/40 , C03C2201/50 , G02B6/02114 , G02B6/124 , G02B6/13 , G02B2006/02161 , H01S3/063 , H01S3/06708 , H01S3/0675 , H01S3/1608 , H01S3/1611 , H01S3/1618 , H01S3/1655
摘要： Optical waveguides having a waveguide channel of photosensitive silica glass with a modified refractive index optically written therein, wherein the photosensitive glass comprises oxides of silicon, tin and at least one Group I element, where such optical waveguide devices include optical fiber gratings, optical fiber dispersion compensators, optical fiber sensors, optical fiber lasers, and planar waveguide devices.
摘要翻译： 光波导具有光学二氧化硅玻璃的波导通道，其光折射率被光学地写入其中，其中感光玻璃包括硅，锡和至少一个I族元素的氧化物，其中这种光波导器件包括光纤光栅，光纤色散 补偿器，光纤传感器，光纤激光器和平面波导器件。
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公开(公告)号：US4910737A
公开(公告)日：1990-03-20
申请号：US195638
申请日：1988-07-21
IPC分类号： G02B6/00 , G02F1/35 , G02F3/02 , H01S3/06 , H01S3/067 , H01S3/0943 , H01S3/0947 , H01S3/17 , H04B10/02 , H04B10/28
摘要： A fibre laser (1) of the type comprising a doped single-mode optical fibre (3) arranged between reflectors (5,7), and which is coupled (11) to an optical pumping source (9). For the given reflection efficiency of the reflectors (5,7), the length of the optical fibre (3) is chosen such that it exceeds that affording saturation and provides at its end a region for absorption (FIG. 1). The resultant hysteretic behavior of this bistable device may be utilized for logic memory (bistable), and regenerative amplification applications. To this end a second source (9') can be coupled (11',19) to the laser fibre (3).
摘要翻译： PCT No.PCT / GB87 / 00668 Sec。 371日期：1988年7月21日 102（e）日期1988年7月21日PCT提交1987年9月22日PCT公布。 出版物WO88 / 02133 日期：1988年3月24日。一种光纤激光器（1），其包括布置在反射器（5,7）之间的掺杂单模光纤（3），并且被耦合（11）到光泵浦源 ）。 对于反射器（5,7）的给定反射效率，选择光纤（3）的长度使其超过提供饱和度并且在其末端提供用于吸收的区域（图1）。 双稳态器件的滞后行为可用于逻辑存储器（双稳态）和再生放大应用。 为此，第二源（9'）可以耦合（11'，19）到激光光纤（3）。
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公开(公告)号：US06349157B1
公开(公告)日：2002-02-19
申请号：US09571739
申请日：2000-05-15
申请人： Richard Ian Laming , Martin Cole , Laurence Reekie
发明人： Richard Ian Laming , Martin Cole , Laurence Reekie
IPC分类号： G02B628
CPC分类号： H04B10/2519 , G02B6/29317 , G02B6/2932 , G02B6/29394 , H04B2210/254
摘要： A method of forming a chirped fiber grating having the steps of providing an optical fiber, impressing a non-linear grating onto a portion of the optical fiber to define a non-linear variation in the refractive index. The method further comprising applying a temperature gradient to a portion of the optical fiber to provide a variation that acts against the non-linear variation in the refractive index.
摘要翻译： 一种形成啁啾光纤光栅的方法，具有提供光纤的步骤，将非线性光栅施加在光纤的一部分上以限定折射率的非线性变化。 该方法还包括向光纤的一部分施加温度梯度以提供抵抗折射率的非线性变化的变化。
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公开(公告)号：US06292601B1
公开(公告)日：2001-09-18
申请号：US08860996
申请日：1997-10-17
申请人： Richard Ian Laming , Martin Cole , Laurence Reekie
发明人： Richard Ian Laming , Martin Cole , Laurence Reekie
IPC分类号： G02B628
CPC分类号： H04B10/2519 , G02B6/29317 , G02B6/2932 , G02B6/29394 , H04B2210/254
摘要： An optical fiber transmission system comprises an optical signal source operable to generate an optical signal at a predetermined bit rate and at a signal wavelength; an optical fiber transmission link connected at a first end to the signal source, the link having dispersion characteristics at the signal wavelength; an optical amplifier serially disposed in the link; and a signal receiver connected at the second end of the Lank; in which a grating is connected in the link, the grating being chirped by an amount providing at least partial compensation of the dispersion characteristics of the link, the compensation such as to provide a signal, at the second of the link, compatible with the sensitivity requirements of the receiver at the second end of the link.
摘要翻译： 光纤传输系统包括光信号源，其可操作以以预定比特率和信号波长产生光信号; 在第一端连接到信号源的光纤传输链路，链路在信号波长处具有色散特性; 串联地设置在所述链路中的光放大器; 和连接在Lank的第二端的信号接收器; 其中在链路中连接有光栅，光栅被啁啾量提供链路的色散特性的至少部分补偿，在链路的第二个处提供与提供灵敏度相关的补偿，例如提供信号 链接第二端接收器的要求。
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公开(公告)号：US06169829A
公开(公告)日：2001-01-02
申请号：US08894352
申请日：1997-10-22
IPC分类号： G02B634
CPC分类号： G02B6/022 , G02B6/02085 , G02B6/021 , G02B6/245
摘要： The invention provides a method of manufacturing a chirped optical fiber grating, the method comprising the steps of an etching the cladding of the optical fiber to vary the cross-sectional area of a portion of an optical fiber, and impressing a grating of uniform pitch on the portion of the fiber in which the portion of the fiber is subjected to different respective longitudinal forces during the impressing step and during subsequent use of the grating.
摘要翻译： 本发明提供了一种制造啁啾光纤光栅的方法，该方法包括以下步骤：蚀刻光纤的包层以改变光纤的一部分的横截面积，并将均匀间距的光栅施加在 纤维的部分在纤维的部分在施加步骤期间和随后使用光栅期间经受不同的相应的纵向力。
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公开(公告)号：US06009222A
公开(公告)日：1999-12-28
申请号：US928347
申请日：1997-09-12
申请人： Liang Dong , David Neil Payne , Laurence Reekie
发明人： Liang Dong , David Neil Payne , Laurence Reekie
CPC分类号： G02B6/03694 , G02B6/021 , G02B6/02114 , G02B6/03627
摘要： An optical fiber comprises a glass core having a core refractive index; a glass primary cladding at least partially surrounding said core, said primary cladding having a primary cladding refractive index lower than said core refractive index; a glass secondary cladding at least partially surrounding said primary cladding, said secondary cladding having a secondary cladding refractive index lower than said core refractive index but higher than said primary cladding refractive index; said glass of said core and said glass of at least part of said primary cladding containing one or more photosensitizing dopants.
摘要翻译： 光纤包括具有芯折射率的玻璃芯; 至少部分地围绕所述芯的玻璃初级包层，所述初级包层具有低于所述纤芯折射率的初级包层折射率; 至少部分地围绕所述初级包层的玻璃次级包层，所述次级包层具有低于所述纤芯折射率但高于所述初级包层折射率的次级包层折射率; 所述芯的所述玻璃和所述玻璃的至少部分所述初级包层含有一种或多种光敏掺杂剂。
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公开(公告)号：US4955025A
公开(公告)日：1990-09-04
申请号：US326458
申请日：1989-03-20
IPC分类号： H01S3/07 , C03B37/018 , G02B6/02 , G02B6/34 , H01S3/06 , H01S3/067 , H01S3/083 , H01S3/091 , H01S3/10 , H01S3/17 , H04B10/02 , H04B10/28
CPC分类号： H01S3/17 , C03B37/018 , C03B37/01807 , G02B6/02 , H01S3/067 , H01S3/083 , C03B2201/34 , C03B2201/40 , G02B6/29359 , G02B6/29395
摘要： An active device (FIG. 1) comprising a length of doped fiber (1) and an end-coupled pump source (11). The fiber (1) is of single-mode geometry and incorporates rare-earth or transition metal dopant ions. These latter are incorporated at a low-level uniform concentration (.ltorsim.900 ppm). The fiber host (1) selected exhibits an inherently ultra low attentuation loss (.ltorsim.40 dB/km) at the emission wavelength. The fibers (1) are generally of long length (e.g. 5 m to 300 m) and may be coiled for compact packaging. The fiber (1) may be formed as part of a Fabry-Perot cavity (1, 7, 9); or, as a ring cavity (FIG. 8) using a doped fiber coupler (29) spliced to form a ring (27). Q-switch and mode-locking devices (19) and gratings (25) may be included as part of the Fabry-Perot cavity to allow pulse-mode operation and/or wavelength tuning, respectively. The fiber (1) may also be utilised as an amplifier.
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公开(公告)号：US4787927A
公开(公告)日：1988-11-29
申请号：US64943
申请日：1987-04-09
IPC分类号： H01S3/07 , C03B37/018 , G02B6/02 , G02B6/34 , H01S3/06 , H01S3/067 , H01S3/083 , H01S3/091 , H01S3/10 , H01S3/17 , H04B10/02 , H04B10/28 , C03B37/023
CPC分类号： H01S3/17 , C03B37/018 , C03B37/01807 , G02B6/02 , H01S3/067 , H01S3/083 , C03B2201/34 , C03B2201/40 , G02B6/29359 , G02B6/29395
摘要： A method of making a preform for drawing optical fibers includes the steps of depositing a dopant material 3 in a dopant carrier chamber 1, heating the dopant material to cause it to vaporise at a predetermined rate, depositing from a mixture of a source material (GeCl.sub.4, SiO.sub.4, O.sub.2) and said vaporised dopant a mixture of solid components 8 and fusing said solid components to form a doped glass.
摘要翻译： PCT No.PCT / GB86 / 00484 Sec。 371日期1987年4月9日 102（e）日期1987年4月9日PCT申请日1986年8月13日PCT公布。 第WO87 / 01110号公报 日本1987年2月26日。制造用于拉制光纤的预成型件的方法包括以下步骤：在掺杂剂载体室1中沉积掺杂剂材料3，加热掺杂剂材料以使其以预定速率蒸发，从 源材料（GeCl 4，SiO 4，O 2）和所述汽化掺杂剂的混合物是固体组分8的混合物，并将所述固体组分熔合以形成掺杂的玻璃。
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公开(公告)号：US06303041B1
公开(公告)日：2001-10-16
申请号：US09481530
申请日：2000-01-12
IPC分类号： C05C2566
CPC分类号： G02B6/022 , G02B6/02085 , G02B6/021 , G02B6/245
摘要： PURPOSE: To increase the mechanical strength of a connected optical fiber, by carrying out a surface treatment by dipping the melt-struck connection part of the optical fiber in a treating liquid of strong acid and then in a treating liquid of hydrofluoric acid. CONSTITUTION: A treatment liquid 6 of a mixture solution consisting of 1 or ≧2 kinds of strong acid such as sulfuric acid, hydrochloric acid, nitric acid, etc. is stored in a liquid tank 7. A melt-stuck connection part 5 of end parts 2A and 2B of optical fibers 1A and 1B is dipped in the tank 7. Thus coat residue, dust, metallic particles, etc. sticking to the surface of the part 5 are removed. Then the part 5 is dipped in a treating liquid containing an aqueous solution of hydrofluoric acid, ammonium fluoride, sodium fluoride in a liquid tank 8. Thus the minute flaws on the surface are removed or annealed. As a result, the strength is increased at the part 5.
摘要翻译： 目的：为了提高连接光纤的机械强度，通过将光纤的熔喷连接部浸渍在强酸处理液中，然后在氢氟酸的处理液中进行表面处理。结论： 将由1或2种强酸如硫酸，盐酸，硝酸等组成的混合溶液的处理液6储存在液体罐7中。端部的熔融粘合连接部5 光纤1A和1B的2A和2B被浸入槽7.因此，除去粘附在部件5的表面上的涂层残留物，灰尘，金属颗粒等。 然后将部件5浸入含有氢氟酸，氟化铵，氟化钠水溶液的处理液体中，在液体罐8中。因此，表面上的微小缺陷被去除或退火。 结果，第5部分的实力有所增加。
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公开(公告)号：US06240224B1
公开(公告)日：2001-05-29
申请号：US09328327
申请日：1999-06-09
申请人： Laurence Reekie , Lu Chao
发明人： Laurence Reekie , Lu Chao
IPC分类号： G02B634
CPC分类号： G02B6/03622 , C03C25/106 , C03C25/6226 , G02B6/02123 , G02B6/03605 , G02B6/03694 , G02B2006/02161 , H01S3/067 , H01S3/0675
摘要： A coated optical fiber comprises a coating, an optical fiber, at least one waveguiding region and an index grating. The waveguiding region contains at least one photosensitive region, the index grating is formed by writing through the coating using UV light, and the coating transmits UV light at the wavelength at which the index grating is written.
摘要翻译： 涂覆光纤包括涂层，光纤，至少一个波导区域和折射率光栅。 波导区域包含至少一个感光区域，通过使用UV光通过涂层书写形成折射率光栅，并且涂层以指定光栅被写入的波长透射UV光。
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