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公开(公告)号：US07228033B2
公开(公告)日：2007-06-05
申请号：US09812108
申请日：2001-03-19
申请人： Venkata A. Bhagavatula , John Himmelreich , Gregory E. Williams , Ljerka Ukrainczyk , Robert S. Wagner
发明人： Venkata A. Bhagavatula , John Himmelreich , Gregory E. Williams , Ljerka Ukrainczyk , Robert S. Wagner
IPC分类号： G02B6/32
CPC分类号： G02B6/32 , G02B6/2552 , G02B6/262
摘要： A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.
摘要翻译： 通过将大致均匀的玻璃透镜毛坯熔合到光纤的远端而形成的球面透镜，加热和张紧透镜毛坯以将其分离成两段，其中附接到光纤的段限定锥形端，并且加热透镜 空白高于其软化点，从而形成球面透镜。 透镜坯料由软化点小于光纤纤芯的4重量％硼硅酸盐玻璃制成。 透镜构件限定邻近光纤的喉部区域，其横截面尺寸基本上大于光纤的直径，但是基本上小于球面透镜的直径。
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公开(公告)号：US07099535B2
公开(公告)日：2006-08-29
申请号：US10699450
申请日：2003-10-31
CPC分类号： G02B6/2552 , G02B6/32 , G02B6/4203 , G02B6/4206
摘要： A fiber lens includes a graded-index lens, a single-mode fiber disposed at a first end of the graded-index lens, and a refractive lens having a hyperbolic or near-hyperbolic shape disposed at a second end of the graded-index lens to focus a beam from the single-mode fiber to a diffraction-limited spot.
摘要翻译： 光纤透镜包括渐变折射率透镜，设置在渐变折射率透镜的第一端处的单模光纤和具有设置在渐变折射率透镜的第二端处的双曲线或近似双曲形的折射透镜 将来自单模光纤的光束聚焦到衍射极限点。
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公开(公告)号：US06904197B2
公开(公告)日：2005-06-07
申请号：US10202516
申请日：2002-07-23
CPC分类号： G02B6/4203 , G02B6/2552 , G02B6/262 , G02B6/30 , G02B6/32 , G02B6/4202 , G02B6/4206 , G02B6/4214
摘要： An apparatus for altering the mode field of an optical signal is disclosed. The apparatus includes a GRIN-fiber lens and a reflective surface disposed at one end of the GRIN-fiber lens, the reflective surface configured to cooperate with the GRIN-fiber lens to redirect the path of the optical signal directed against the reflective surface. A method of manufacturing an apparatus for altering the mode field of an optical signal and an optical assembly are also disclosed.
摘要翻译： 公开了一种用于改变光信号的模场的装置。 该装置包括GRIN-光纤透镜和设置在GRIN-光纤透镜的一端的反射表面，该反射表面被配置为与GRIN-光纤透镜配合以重定向指向反射表面的光信号的路径。 还公开了一种制造用于改变光信号和光学组件的模场的装置的方法。
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公开(公告)号：US06510264B2
公开(公告)日：2003-01-21
申请号：US09874721
申请日：2001-06-05
IPC分类号： G02B634
CPC分类号： G02B6/29334 , C03C3/064 , C03C3/091 , C03C4/0085 , C03C4/04 , C03C4/085 , C03C17/3411 , C03C23/00 , C03C23/002 , C03C2201/21 , G02B6/02114 , G02B6/12007 , G02B6/124 , G02B6/125 , G02B6/29319 , G02B2006/12147
摘要： The present invention provides photonic devices utilized in optical telecommunications. The photonic devices include photosensitive bulk glass bodies which contain Bragg gratings, particularly with the ultraviolet photosensitive bulk glass bodies directing optical telecommunications wavelength range bands. Preferably the ultraviolet photosensitive bulk glass bodies are batch meltable alkali boro-alumino-silicate bulk glass bodies. The invention includes an optical communications wavelength device for use with wavelength range bands, with the device comprising an input optical waveguide collimator for collimating an input light beam out of an optical waveguide to provide an unguided input light beam including at least one reflective wavelength range band &lgr;R and at least one wavelengths range band &lgr;n; an internal bulk Bragg grating including a transparent photosensitive bulk optical grating medium with an internal modulated refractive index grating with a grating pattern for reflecting the at least one wavelength range band &lgr;R; at least one output coupler for outputting an at least one output wavelength range band; and a substrate structure for securing said bulk Bragg grating relative to the input collimator and the output coupler, with the bulk Bragg grating disposed in the unguided input light beam wherein the at least one wavelengths range band &lgr;n is transmitted through the bulk Bragg grating and the at least one wavelength range band &lgr;R is reflected by the bulk Bragg grating.
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公开(公告)号：US06317265B1
公开(公告)日：2001-11-13
申请号：US09505362
申请日：2000-02-16
IPC分类号： G02B528
CPC分类号： G02B5/285 , G02B5/284 , G02B6/264 , G02B6/2937
摘要： An interference filter (10, 30, 50, 70, 90, 110, 130, 150, or 190) filters selected wavelengths by dividing an input beam into two or more intermediate beams having different optical path lengths and by recombining the intermediate beams into an output beam that is modified by interference between the intermediate beams. An optical path length difference generator (20, 40, 60, 80, 100, 120, 140, 160, or 200) varies the optical path lengths of the intermediate beams by changing the physical lengths of their paths or the refractive indices of the mediums in which they are conveyed. The optical path length generator (20) of one exemplary embodiment (10) includes a spacer plate (20) that is divided into elements (22 and 24) having different refractive indices for varying the optical path lengths of the intermediate beams. Another optical path length difference generator (140) is formed by a stack of partially reflective surfaces (144) that are spaced apart in the direction of beam propagation by at least one nominal wavelength for varying the physical path lengths between the intermediate beams.
摘要翻译： 通过将输入光束划分成具有不同光程长度的两个或更多个中间光束并通过将中间光束重新组合成一个干涉滤光器（10,30,50,70,90,110,130,150或190）来滤除所选择的波长 输出光束通过中间光束之间的干涉进行修改。 光路长度差产生器（20,40,60,80,100,120,140,160或200）通过改变其路径的物理长度或介质的折射率来改变中间光束的光路长度 在那里他们被传达。 一个示例性实施例（10）的光路长度发生器（20）包括间隔板（20），其被分成具有不同折射率的元件（22和24），用于改变中间光束的光路长度。 另一光路长度差产生器（140）由一组部分反射表面（144）形成，该堆叠部分反射表面在束传播方向上间隔开至少一个标称波长，用于改变中间光束之间的物理路径长度。
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公开(公告)号：US06173588B1
公开(公告)日：2001-01-16
申请号：US09300894
申请日：1999-04-28
IPC分类号： C03B37027
CPC分类号： G02B6/02247 , C03B37/01211 , C03B37/01234 , C03B37/0124 , C03B37/01248 , C03B37/01413 , C03B37/01466 , C03B37/0148 , C03B37/01493 , C03B37/027 , C03B2203/18 , C03B2203/20 , C03B2203/22 , C03B2203/24 , C03B2203/36 , G02B6/0281 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/03661 , G02B6/03688
摘要： An optical fiber having optical characteristics that vary along its length is made by assembling a plurality of cylindrical glass or soot tablets into or along a glass tablet alignment device, then fused into monolithic assembly. If desired, additional glass may be applied to the assembly before or after the fusing step. A vacuum is preferably applied during the fusing step. Each tablet preferably contains a core region, and it optionally contains a layer of cladding glass. Adjacent tablets are capable of forming optical fiber sections having different optical properties. Prior to consolidating the glass particles, chlorine preferably flows through or around the tablets and alignment device. The resultant draw blank can be drawn into a low loss optical fiber having short transition regions between adjacent areas of fiber. This method is particularly useful for making dispersion managed single-mode optical fibers.
摘要翻译： 具有沿其长度变化的光学特性的光纤通过将多个圆柱形玻璃或烟灰片组装到玻璃片对齐装置中或沿着玻璃片对齐装置而制成，然后熔合成单片组件。 如果需要，可以在熔融步骤之前或之后向组件施加另外的玻璃。 在定影步骤期间优选施加真空。 每个片剂优选地包含核心区域，并且其任选地包含一层包层玻璃。 相邻的片剂能够形成具有不同光学性质的光纤部分。 在固化玻璃颗粒之前，氯优选流过片剂和对准装置中或周围。 所得到的拉伸坯料可以被拉入具有纤维相邻区域之间的短过渡区域的低损耗光纤。 该方法对于制造分散管理单模光纤特别有用。
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公开(公告)号：US4953947A
公开(公告)日：1990-09-04
申请号：US894575
申请日：1986-08-08
CPC分类号： G02B6/03688 , G02B6/0286 , G02B6/262 , G02B6/29307 , G02B6/2931 , G02B6/29394 , G02B6/4215 , H04B10/25133
摘要： An optical transmission system wherein light is transmitted from a transmitter to a receiver by at least one transmission optical fiber. The system includes a dispersion transformer which receives light from one of the components, compensates for or transforms the delay distortion of the various wavelengths transmitted through the system, and provides the next component in the system with a compensated or transformed light beam. The dispersion transformer comprises means for receiving light from one of the components and dispersing/separating the light into the plurality of spatially separated beams which are directed onto the endface of a multimode optical fiber. The position of each beam on that end-face is a function of the velocity with which the light that forms the beam propagates through the transmission optical fiber. The multimode fiber is characterized in that it comprises a plurality of light-conducting channels, adjacent ones of which are separated by cladding regions having refractive indices lower than those of the adjacent light-conducting channels.
摘要翻译： 一种光传输系统，其中光通过至少一个传输光纤从发射机传输到接收机。 该系统包括从其中一个部件接收光的色散变换器，补偿或变换通过系统传输的各种波长的延迟失真，并向系统中的补偿或变换的光束提供下一个部件。 色散变换器包括用于接收来自组件中的一个的光的装置，并将光分散/分离成被引导到多模光纤的端面上的多个空间分离的光束。 每个光束在该端面上的位置是形成光束的光通过透射光纤传播的速度的函数。 多模光纤的特征在于它包括多个导光通道，相邻的导光通道被折射率低于相邻的导光通道的折射率的包层区分开。
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公开(公告)号：US06963682B2
公开(公告)日：2005-11-08
申请号：US10202562
申请日：2002-07-23
CPC分类号： G02B6/262 , G02B6/2552 , G02B6/30 , G02B6/32 , G02B6/4202 , G02B6/4203 , G02B6/4206 , G02B6/4214
摘要： A multi-lens apparatus for altering the mode field of an optical signal is disclosed. The apparatus includes an optical fiber having a core region defining an optical axis and a GRIN-fiber lens positioned in relation to one end of the optical fiber. A biconic lens including an external surface defined by two different curves disposed substantially orthogonal to one another, a major curve C1 and a minor curve C2, with C1 and C2 intersecting at or near the optical axis is positioned in relation to an end of the GRIN-fiber lens remote from the fiber. A method of manufacturing a multi-lens apparatus for altering the mode field of an optical signal, and an optical assembly are also disclosed.
摘要翻译： 公开了一种用于改变光信号的模场的多透镜装置。 该装置包括具有限定光轴的芯区域和相对于光纤的一端定位的GRIN光纤透镜的光纤。 双凸透镜，其包括由基本上彼此正交布置的两个不同曲线限定的外表面，主曲线C 1和次曲线C 2 2，其中C < 在光轴处或其附近相交的1＆lt; 2＆gt; 2＆gt; 2＆gt;相对于远离光纤的GRIN光纤透镜的端部定位。 还公开了一种制造用于改变光信号的模场的多透镜装置的方法和光学组件。
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公开(公告)号：US06556756B2
公开(公告)日：2003-04-29
申请号：US10050658
申请日：2002-01-16
IPC分类号： G02B602
CPC分类号： G02B6/02271 , G02B6/02285 , G02B6/03611 , G02B6/03644 , G02B6/03666 , G02B6/03688
摘要： A single mode optical waveguide fiber designed for high data rate, or WDM systems or systems incorporating optical amplifiers. The optical waveguide has a compound core having a central region and at least one annular region surrounding the central region. A distinguishing feature of the waveguide core is that the minimum refractive index of the central core region is less than the minimum index of the adjacent annular region. A relatively simple profile design has the characteristics of ease in manufacturing together with flexibility in tailoring Dw to yield a preselected zero dispersion wavelength, dispersion magnitude over a target wavelength range, and dispersion slope. The simplicity of profile gives reduced polarization mode dispersion.
摘要翻译： 专为高数据速率设计的单模光纤光纤，或WDM系统或并入光放大器的系统。 光波导具有复合芯，其具有中心区域和围绕中心区域的至少一个环形区域。 波导芯的一个显着特点是中心芯区域的最小折射率小于相邻环形区域的最小折射率。 相对简单的轮廓设计具有易于制造的特性以及裁剪Dw的灵活性，以产生预选的零色散波长，目标波长范围上的色散幅度和色散斜率。 轮廓的简单性降低了偏振模色散。
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公开(公告)号：US06507438B2
公开(公告)日：2003-01-14
申请号：US09962397
申请日：2001-09-25
IPC分类号： G02B2700
CPC分类号： G02B5/285 , G02B5/284 , G02B6/264 , G02B6/2937
摘要： An interference filter (10, 30, 50, 70, 90, 110, 130, 150, or 190) filters selected wavelengths by dividing an input beam into two or more intermediate beams having different optical path lengths and by recombining the intermediate beams into an output beam that is modified by interference between the intermediate beams. An optical path length difference generator (20, 40, 60, 80, 100, 120, 140, 160, or 200) varies the optical path lengths of the intermediate beams by changing the physical lengths of their paths or the refractive indices of the mediums in which they are conveyed. The optical path length generator (20) of one exemplary embodiment (10) includes a spacer plate (20) that is divided into elements (22 and 24) having different refractive indices for varying the optical path lengths of the intermediate beams. Another optical path length difference generator (140) is formed by a stack of partially reflective surfaces (144) that are spaced apart in the direction of beam propagation by at least one nominal wavelength for varying the physical path lengths between the intermediate beams.
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