公开(公告)号：US5295210A

公开(公告)日：1994-03-15

申请号：US999296

申请日：1992-12-31

申请人： Daniel A. Nolan ,  David L. Weidman

发明人： Daniel A. Nolan ,  David L. Weidman

IPC分类号： G02B6/28 ,  G02B6/26

CPC分类号： G02B6/2835 ,  G02B6/2856

摘要： An achromatic fiber optic coupler of the type wherein three single-mode optical fibers are fused together along a portion of the lengths thereof to form a coupling region. Each fiber includes a core and a cladding, the lowest refractive index of the fiber claddings being n.sub.2. The fibers are disposed in a triangular array in the coupling region. A matrix glass body of refractive index n.sub.3 surrounds the coupling region, n.sub.3 being lower than n.sub.2 by such an amount that the value of .DELTA..sub.2-3 is less than 0.125%, wherein .DELTA..sub.2-3 equals (n.sub.2.sup.2' -n.sub.3.sup.2)/2n.sub.2.sup.2.

摘要翻译： 这种类型的消色差光纤耦合器，其中三个单模光纤沿其长度的一部分熔合在一起以形成耦合区域。 每个光纤包括芯和包层，光纤包层的最低折射率为n2。 纤维在耦合区域中以三角形阵列布置。 折射率为n3的矩阵玻璃体围绕耦合区域，n3低于n2，使得（Delta）2-3的值小于0.125％，其中（Delta）2-3等于（n22'- n32）/ 2n22。

公开(公告)号：US06256442B1

公开(公告)日：2001-07-03

申请号：US09392000

申请日：1999-09-08

申请人： Daniel A. Nolan ,  Denis M. Trouchet ,  David L. Weidman

发明人： Daniel A. Nolan ,  Denis M. Trouchet ,  David L. Weidman

IPC分类号： G02B610

CPC分类号： G02B6/12011 ,  G02B6/10 ,  G02B6/12007 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/125 ,  G02B2006/12159

摘要： An athermalized integrated optical waveguide device in which thermal spectral shifts are inhibited is provided and in which the light transmitting properties are insensitive to temperature variations and fluctuations. The athermnalized integrated optical waveguide device has at least two waveguide core arms, preferably comprised of a silica glass, with the core arms cladded with a waveguide cladding composition, preferably a silica glass that has a boron concentration different than the cores. The first waveguide arm and the second waveguide arm have a difference in an effective index thermal slope in order to provide an athermalized device such as an intereferometer on a substantially planar substrate. In addition the at least two waveguide core arms are comprised of path segments having different waveguide core dimensions.

摘要翻译： 提供其中抑制热光谱偏移的非热化集成光波导器件，其中透光性对温度变化和波动不敏感。 该无源集成光波导器件具有至少两个波导芯臂，优选由石英玻璃构成，芯臂包覆有波导覆层组合物，优选具有不同于芯的硼浓度的石英玻璃。 第一波导臂和第二波导臂在有效折射率热斜率上具有差异，以便在基本平坦的基板上提供诸如干涉仪之类的非热化器件。 此外，至少两个波导芯臂由具有不同波导芯尺寸的路径段组成。

公开(公告)号：US5339372A

公开(公告)日：1994-08-16

申请号：US75129

申请日：1993-06-09

申请人： William J. Miller ,  Daniel A. Nolan ,  David L. Weidman

发明人： William J. Miller ,  Daniel A. Nolan ,  David L. Weidman

IPC分类号： G02B6/28 ,  C03C25/02

CPC分类号： G02B6/2856

摘要： A low loss fiber optic coupler of the type wherein a plurality of single-mode optical fibers are fused together along a portion of the lengths thereof to form a coupling region. Each fiber includes a core and a cladding, the lowest refractive index of the fiber claddings being n.sub.2. Each of the output fibers of the coupler further includes a surface region of refractive index n.sub.4 that inhibits the coupling of light to lossy composite modes, n.sub.4 being lower than n.sub.2.

摘要翻译： 一种低损耗光纤耦合器，其中多个单模光纤沿其长度的一部分熔合在一起以形成耦合区域。 每个光纤包括芯和包层，光纤包层的最低折射率为n2。 耦合器的每个输出光纤还包括折射率为n4的表面区域，其阻止光耦合到有损复合模式，n4低于n2。

公开(公告)号：US20090003753A1

公开(公告)日：2009-01-01

申请号：US11498658

申请日：2006-08-03

申请人： George E. Berkey ,  Ming-Jun Li ,  Daniel A. Nolan ,  Donnell T. Walton ,  Luis A. Zenteno

发明人： George E. Berkey ,  Ming-Jun Li ,  Daniel A. Nolan ,  Donnell T. Walton ,  Luis A. Zenteno

IPC分类号： G02F1/01

CPC分类号： H01S3/067 ,  C03B37/01217 ,  C03B37/01225 ,  C03B37/02781 ,  C03B2201/34 ,  C03B2203/14 ,  C03B2203/30 ,  C03B2205/08 ,  C03B2205/10 ,  G02B6/02 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/03655 ,  G02B6/03694 ,  G02B6/105 ,  H01S3/06729 ,  H01S3/0675

摘要： A method for generating a linear single-polarization output beam comprises providing an optically active linearly birefringent and linearly dichroic fiber for propagating light and having a single polarization wavelength range and a gain bandwidth; optically pumping the optically active linearly birefringent and linearly dichroic fiber for obtaining fluorescence within the gain bandwidth; and aligning the single-polarization wavelength range to overlap a desired spectral region of the gain profile.

摘要翻译： 用于产生线性单偏振输出光束的方法包括提供用于传播光并具有单一偏振波长范围和增益带宽的光学有效线性双折射和线性二色光纤; 光学地泵浦光学有效的线性双折射和线性二色光纤，以在增益带宽内获得荧光; 并且将单极化波长范围对准以与增益曲线图的期望光谱区域重叠。

公开(公告)号：US07043125B2

公开(公告)日：2006-05-09

申请号：US10145327

申请日：2002-05-13

申请人： Phong Diep ,  James C. Fajardo ,  Ming-Jun Li ,  Daniel A. Nolan ,  Gang Qi

发明人： Phong Diep ,  James C. Fajardo ,  Ming-Jun Li ,  Daniel A. Nolan ,  Gang Qi

IPC分类号： G02B6/02

CPC分类号： G02B6/03666 ,  G02B6/02014 ,  G02B6/02223 ,  G02B6/02266 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03627 ,  H04B10/25

摘要： Disclosed is a single mode optical waveguide fiber having a low cut off wavelength, and mode field diameter and bend resistance similar to step index single mode optical waveguide fiber designed for use at 1310 nm. By including a clad region of raised refractive index spaced apart from the core region of the single mode optical waveguide fiber, the cut off wavelength can be reduced to 850 nm. The single mode optical waveguide fiber in accord with the invention may also have a core region having a reduced refractive index on centerline surrounded by a region of higher refractive index and a clad region which is substantially uniform. The single mode optical waveguide fiber is thus ideally suited for use with the low cost, reliable VCSEL operating at 850 nm, a Fabry-Perot laser operating at 1310 nm, or a distributed feedback laser operating at 1550 nm thereby enabling low cost, easily installed, home access portions of the broadband telecommunications system.

公开(公告)号：US5812978A

公开(公告)日：1998-09-22

申请号：US762804

申请日：1996-12-09

申请人： Daniel A. Nolan

发明人： Daniel A. Nolan

IPC分类号： A61G5/04 ,  G10L15/22 ,  G10L15/26 ,  G01L3/00

CPC分类号： A61G5/045 ,  G10L15/26 ,  A61G2203/14 ,  A61G2203/18

摘要： A voice-controlled wheelchair has a control system having a plurality of modes of operation in each of which only a limited number of commands for moving the wheelchair are executed. The commands are entered by a throat-engaging microphone, and backup commands are also recognized, including a command based on an excited utterance to stop the wheelchair. The control system is switchable by voice command between a first condition in which it executes other commands and a second condition in which it does not execute other commands.

摘要翻译： 语音控制轮椅具有控制系统，其具有多个操作模式，每个操作模式仅执行有限数量的用于移动轮椅的命令。 命令由喉咙的麦克风输入，并且还可以识别备份命令，包括基于激动的话语来停止轮椅的命令。 控制系统可以在执行其他命令的第一状态和不执行其他命令的第二状态之间通过语音命令切换。

公开(公告)号：US5755450A

公开(公告)日：1998-05-26

申请号：US733813

申请日：1996-10-18

申请人： Todd D. Ellis ,  David J. Lacorazza ,  Daniel A. Nolan ,  Lennart B. Johnson

发明人： Todd D. Ellis ,  David J. Lacorazza ,  Daniel A. Nolan ,  Lennart B. Johnson

IPC分类号： A63C17/14

CPC分类号： A63C17/1409

摘要： A braking system for an in-line skate. The skate includes a boot mounted on a chassis. A cuff is rotatably mounted on the chassis. The chassis has a plurality of wheels rotatably mounted thereon. The braking system for the skate includes a brake pad housing which is either fixedly or pivotally attached to a rear portion of the cuff, a brake pad disposed in the housing, and a roller arm rotatably mounted on the chassis. The roller arm is spring loaded so that when the brake is not in use, the roller arm is disposed above the wheels. The roller arm has a bearing assembly disposed therein, so that when the brake is actuated by a rearward rotation of the cuff, the brake pad engages the bearing assembly of the roller arm, thereby causing said bearing assembly to engage said at least one of the wheels to slow and/or stop the skate.

摘要翻译： 用于直排轮滑的制动系统。 滑板包括一个安装在底盘上的靴子。 袖带可旋转地安装在底盘上。 底盘具有可旋转地安装在其上的多个车轮。 用于溜冰鞋的制动系统包括固定地或可枢转地附接到袖带的后部的制动衬块壳体，设置在壳体中的制动衬块和可旋转地安装在底盘上的辊臂。 辊臂是弹簧加载的，使得当制动器不使用时，辊臂设置在车轮上方。 辊臂具有设置在其中的轴承组件，使得当制动器通过套筒的向后旋转致动时，制动衬块与辊臂的轴承组件接合，从而使所述轴承组件接合所述至少一个 车轮减慢和/或停止滑冰。

公开(公告)号：US5704960A

公开(公告)日：1998-01-06

申请号：US575495

申请日：1995-12-20

申请人： Alan F. Evans ,  Daniel A. Nolan

发明人： Alan F. Evans ,  Daniel A. Nolan

IPC分类号： G02B6/02 ,  C03B37/027 ,  C03B37/03 ,  C03C25/10 ,  G02B6/10 ,  H01S3/067 ,  H01S3/07 ,  H01S3/17 ,  C03B37/02

CPC分类号： G02B6/105 ,  C03B37/027 ,  C03B37/02745 ,  C03B37/03 ,  C03B37/032 ,  C03C25/106 ,  H01S3/06708 ,  C03B2201/34 ,  C03B2203/24 ,  C03B2203/36 ,  C03B2205/06

摘要： A single mode optical fiber suitable for use in an amplified fiber optic system which includes an inner glass core doped with a rare earth element and an outer transparent glass cladding. The fiber exhibits a plurality of mode coupling sites formed at regular intervals along the length of the fiber which provides for a reduced DOP. The sites are formed by a twist at regular intervals along the fiber length by applying a torque to the fiber. The method of forming the fiber is also disclosed.

摘要翻译： 一种适用于放大光纤系统的单模光纤，其包括掺杂有稀土元素的内玻璃芯​​和外透明玻璃包层。 纤维表现出沿着纤维的长度以规则的间隔形成的多个模式耦合位置，其提供减少的DOP。 通过向纤维施加扭矩，沿着纤维长度以规则的间隔形成这些部位。 还公开了形成纤维的方法。

公开(公告)号：US5504829A

公开(公告)日：1996-04-02

申请号：US172937

申请日：1993-12-27

申请人： Alan F. Evans ,  Daniel A. Nolan

发明人： Alan F. Evans ,  Daniel A. Nolan

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  G02B6/10

CPC分类号： G02B6/0286 ,  C03B37/01413 ,  C03B37/01493 ,  C03B37/018 ,  C03B37/01807 ,  G02B6/02247 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/03688 ,  C03B2203/02 ,  C03B2203/06 ,  C03B2203/18 ,  C03B2203/24 ,  C03B2203/36

摘要： A single-mode optical fiber suitable for the transmission of solitons has a refractive index profile that changes along the length of the fiber to provide a fiber dispersion that monotonically decreases along the fiber from one end thereof to the other. The fiber includes a core of maximum refractive index n.sub.1 and a radius a, surrounded by cladding material having a refractive index n.sub.2 which is less than n.sub.1. The fiber core includes a central region that extends to the longitudinal axis of the fiber and an outer region, the inner and outer regions being separated by a region of depressed refractive index. The inner radius a.sub.1 of the region of depressed refractive index is greater than zero and the maximum radius a.sub.o of the region of depressed refractive index is less than a. The fiber preform can be made by depositing layers of glass particles on an elongated mandrel, the composition of glass particles being varied with respect to longitudinal position along the preform during the deposition of some of the layers.

摘要翻译： 适于透射孤子的单模光纤具有沿纤维长度变化的折射率分布，以提供沿纤维从其一端到另一端单调减小的纤维分散体。 光纤包括最大折射率n1的核心和半径a，由具有小于n1的折射率n2的包层材料包围。 纤维芯包括延伸到纤维的纵向轴线的中心区域和外部区域，内部和外部区域被折射率低的区域分开。 折射率低的区域的内半径a1大于零，折射率低的区域的最大半径ao小于a。 纤维预成型件可以通过在细长心轴上沉积玻璃颗粒层而制成，玻璃颗粒的组成在沉积一些层期间相对于沿着预成型件的纵向位置而变化。

公开(公告)号：US4479819A

公开(公告)日：1984-10-30

申请号：US427732

申请日：1982-09-29

申请人： Nicholas F. Borelli ,  Frank Coppola ,  David L. Morse ,  Daniel A. Nolan ,  Thomas P. Seward, III

发明人： Nicholas F. Borelli ,  Frank Coppola ,  David L. Morse ,  Daniel A. Nolan ,  Thomas P. Seward, III

IPC分类号： C03B17/02 ,  C03B23/037 ,  C03B32/00 ,  C03C3/064 ,  C03C3/091 ,  C03C4/06 ,  G02B5/30 ,  C03C3/26 ,  C03B19/00 ,  C03C23/00

CPC分类号： C03B32/00 ,  C03B17/02 ,  C03B23/037 ,  C03C3/064 ,  C03C3/091 ,  C03C4/06 ,  G02B5/3058 ,  Y10S430/165

摘要： The instant invention is directed to the preparation of glass articles exhibiting excellent polarization in the infrared portion of the spectrum from glasses characterized as containing silver halide particles therein selected from the group of AgCl, AgBr, AgI. The inventive method comprises four general steps:(a) a batch for a glass containing silver and at least one halide selected from the group of chloride, bromide, and iodide is melted and the melt shaped into a glass body of a desired geometry;(b) the glass body is subjected to a heat treatment at least above the strain point but not in excess of 50.degree. C. above the softening point of the glass for a period of time adequate to cause the generation of AgCl and/or AgBr and/or AgI particles therein, said particles ranging in size between 200-5000 .ANG.;(c) the glass body is elongated under stress at temperatures above the annealing point, but below that where said glass exhibits a viscosity of about 10.sup.8 poises, such that the particles are elongated to an aspect ratio of at least 5:1; and(d) the elongated glass body is exposed to a reducing environment at temperatures between 250.degree. C. and about 25.degree. above the annealing point of the glass to reduce the silver halide particles in the glass to metallic silver which is deposited in and/or upon the elongated particles.

摘要翻译： 本发明涉及从其中选择AgCl，AgBr，AgI中含有卤化银颗粒的玻璃的红外线部分的红外部分显示优异的玻璃制品的制备。 本发明的方法包括四个一般步骤：（a）用于含有银的玻璃和选自氯化物，溴化物和碘化物中的至少一种卤化物的批料熔化并将其熔化成具有所需几何形状的玻璃体; （b）将玻璃体至少高于应变点，但不超过玻璃软化点50℃以上的热处理足以导致产生AgCl和/或AgBr的时间 和/或AgI颗粒，所述颗粒的尺寸范围为200-5000安培; （c）玻璃体在高于退火点的温度下在应力下伸长，但低于所述玻璃呈现约108泊的粘度，使得该颗粒伸长至至少5:1的纵横比; 和（d）细长玻璃体在比玻璃退火点高250℃至25℃的温度下暴露于还原环境中，以将玻璃中的卤化银颗粒还原为金属银，其沉积在和/ 或在细长的颗粒上。