公开(公告)号：US06697541B1

公开(公告)日：2004-02-24

申请号：US09569647

申请日：2000-05-12

Applicant: Gang Chen ,  Steven B. Dawes ,  Glenn E. Kohnke ,  Laura A. Weller-Brophy

Inventor： Gang Chen ,  Steven B. Dawes ,  Glenn E. Kohnke ,  Laura A. Weller-Brophy

IPC: G02F1295

CPC classification number: G02B6/02204 ,  G02B6/02095

Abstract: A dynamically tunable filter controls the magnitude of couplings between core and cladding modes of a waveguide by surrounding the waveguide with an overcladding having an adjustable refractive index. The coupled modes are attenuated along the core to produce the desired spectral response. The adjustment to the overcladding index is made in a range that is above the refractive index of the underlying cladding to vary amplitudes of attenuated bands of wavelengths without shifting central wavelengths of the bands.

Abstract translation: 动态可调滤波器通过用具有可调折射率的外包围围绕波导来控制波导的芯和包层模式之间的耦合的大小。 耦合模式沿核心被衰减以产生期望的光谱响应。 对包层指数的调整在高于基底包层的折射率的范围内进行，以改变衰减的波长带的幅度，而不会移动带的中心波长。

公开(公告)号：US06411746B1

公开(公告)日：2002-06-25

申请号：US09484491

申请日：2000-01-18

Applicant: Darol Chamberlain ,  Gang Chen ,  Steven B. Dawes ,  Peter J. McNeilly ,  Mike X. Ouyang ,  Laura A. Weller-Brophy

Inventor： Darol Chamberlain ,  Gang Chen ,  Steven B. Dawes ,  Peter J. McNeilly ,  Mike X. Ouyang ,  Laura A. Weller-Brophy

IPC: G02F1035

CPC classification number: G02F1/0147 ,  G02F1/0115 ,  G02F2201/307 ,  G05D23/24

Abstract: The present invention relates to a tunable optical device 10 that includes an optical fiber device 12 having optical properties that vary with temperature and a heater 14. The heater 14 is thermally coupled to the optical fiber device 12. The heater 14 includes a metal layer 18 and two electrical contacts 20, 22 that are electrically connected to the metal layer 18. The electrical contacts 20, 22 are spaced apart from one another along the metal layer 18. The electrical resistance of the portion of the metal layer 18 between the contacts 20, 22 varies with temperature and serves as a resistive heater. The invention also includes a controller 16 that is electrically connected to the heater 14. The controller 16 provides electrical power to the heater 14 and measures the electrical voltage across the heater 14. The controller 16 compares the measured electrical voltage to a pre-selected reference value. The controller then regulates the amount of electrical current supplied to the heater 14. By regulating the amount of electrical current supplied to the heater 14 the temperature of the heater 14 is controlled.

Abstract translation: 本发明涉及一种可调谐光学器件10，其包括具有随温度变化的光学特性的光纤器件12和加热器14.加热器14热耦合到光纤器件12.加热器14包括金属层18 以及电连接到金属层18的两个电触点20,22.电触点20,22沿着金属层18彼此间隔开。金属层18在触点20之间的电阻 ，22随温度变化，用作电阻加热器。 本发明还包括电连接到加热器14的控制器16.控制器16向加热器14提供电力并测量加热器14两端的电压。控制器16将测得的电压与预选参考值进行比较 值。 然后，控制器调节供应给加热器14的电流量。通过调节供应给加热器14的电流量，控制加热器14的温度。

公开(公告)号：US5198302A

公开(公告)日：1993-03-30

申请号：US512392

申请日：1990-04-23

Applicant: Kenneth Chyung ,  Steven B. Dawes ,  Dale R. Wexell

Inventor： Kenneth Chyung ,  Steven B. Dawes ,  Dale R. Wexell

IPC: C04B35/18 ,  C03C14/00 ,  C04B35/584 ,  C04B35/622 ,  C04B35/80 ,  C04B41/45 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89

CPC classification number: C04B41/009 ,  C03C14/002 ,  C04B35/62227 ,  C04B35/803 ,  C04B41/4584 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89 ,  C03C2214/02 ,  C03C2214/03 ,  C03C2214/20 ,  Y10T428/2933

Abstract: Silicon nitride reinforcing fibers provided with a protective surface coating comprising a boron nitride base layer and, optionally, an alumina overcoating, and fiber-reinforced ceramic matrix composite products incorporating the protectively-coated fibers, are disclosed. The composites offer significantly improved high temperature strength in combination with low dielectric constant and low dielectric loss characteristics.

Abstract translation: 公开了具有包含氮化硼基底层和任选的氧化铝外涂层的保护性表面涂层的氮化硅增强纤维和掺有保护性涂覆纤维的纤维增强陶瓷基复合材料。 复合材料提供显着改善的高温强度与低介电常数和低介电损耗特性相结合。

公开(公告)号：US4808460A

公开(公告)日：1989-02-28

申请号：US57531

申请日：1987-06-02

Applicant: Kenneth Chyung ,  Steven B. Dawes ,  Kishor P. Gadkaree ,  Robert M. Morena ,  Mark P. Taylor

Inventor： Kenneth Chyung ,  Steven B. Dawes ,  Kishor P. Gadkaree ,  Robert M. Morena ,  Mark P. Taylor

IPC: B32B3/18 ,  B32B17/10 ,  B32B18/00 ,  C03B11/14 ,  C03B19/06 ,  C03C27/06 ,  C04B35/80 ,  C04B38/00 ,  E04C2/34 ,  B32B3/12

CPC classification number: B32B17/10577 ,  B32B18/00 ,  B32B3/18 ,  C03B11/14 ,  C03B19/06 ,  C03C27/06 ,  C04B35/80 ,  C04B38/0006 ,  C04B38/008 ,  E04C2/34 ,  C04B2237/04 ,  C04B2237/10 ,  C04B2237/34 ,  C04B2237/38 ,  C04B2237/62 ,  Y10T428/24149 ,  Y10T428/24661 ,  Y10T428/24694 ,  Y10T428/24727 ,  Y10T428/249969

Abstract: This invention relates to the production of laminated structures consisting essentially of a light weight interior member prepared from a glass, glass-ceramic, or ceramic, an exterior member prepared from a glass, glass-ceramic, or ceramic, and a bonding member prepared from a glass, glass-ceramic, or ceramic. The light weight interior member may be composed of a porous body, a corrugated body, or a honeycomb body. In a preferred embodiment, at least one of said members is reinforced through the entrainment of ceramic fibers and/ or whiskers. In the most preferred embodiment, each exterior and interior member is reinforced through the entrainment of ceramic fibers and/or whiskers and the bonding member is reinforced through the entrainment of ceramic whiskers.

Abstract translation: 本发明涉及层压结构的制造，其主要由玻璃，玻璃陶瓷或陶瓷制成的轻质内部构件，由玻璃，玻璃陶瓷或陶瓷制成的外部构件以及由 玻璃，玻璃陶瓷或陶瓷。 轻质内部构件可以由多孔体，波纹体或蜂窝体构成。 在一个优选实施例中，通过夹带陶瓷纤维和/或晶须来增强至少一个所述构件。 在最优选的实施例中，通过夹带陶瓷纤维和/或晶须来增强每个外部和内部构件，并且通过夹带陶瓷晶须来增强粘合构件。

公开(公告)号：US20080207937A1

公开(公告)日：2008-08-28

申请号：US11998227

申请日：2007-11-29

Applicant: Steven B. Dawes ,  James R. Matthews

Inventor： Steven B. Dawes ,  James R. Matthews

IPC: C07F7/04 ,  G03G15/00

CPC classification number: H01G9/2031 ,  C07F7/1804 ,  H01G9/2059 ,  Y02E10/542 ,  Y02P70/521

Abstract: An asymmetric bis-silane compound of the formula A3Si—R1—SiB3 where A, B, and R1 are as defined herein, and to methods for making the bis-silane compound and their use to form layers or films of metal oxide particles, and which layers or films adhere to a suitable substrate. The materials and methods can be used, for example, to make photoactive devices.

Abstract translation: 式<αin-line-formula description =“In-line Formula”的不对称双硅烷化合物末端=“lead”→> 3 Si-R 1 > -SiB <3> <？in-line-formula description =“In-line Formulas”end =“tail”？>其中A，B和R <1> 以及制备双硅烷化合物的方法及其用于形成金属氧化物颗粒的层或膜，以及哪些层或膜粘附到合适的基底上。 材料和方法可以用于例如制造光敏装置。

公开(公告)号：US07097880B2

公开(公告)日：2006-08-29

申请号：US10742279

申请日：2003-12-18

Applicant: Steven B. Dawes ,  Prantik Mazumder

Inventor： Steven B. Dawes ,  Prantik Mazumder

IPC: B05D1/18 ,  B05D3/00

CPC classification number: B01J35/04 ,  B01J37/0201 ,  B01J37/0211 ,  B01J37/0215

Abstract: A method for impregnating porous monolith supports with catalytically active materials is disclosed. The impregnation is carried out at a temperature which substantially reduces chemisorption rates such that reactions between the monolith substrate and catalytically active materials in the catalyst solution are minimized. The process can be completed in a practical time that allows for unit selectivity of the weight ratio of catalytically active materials in the substrate to the weight ratio of catalytically active materials in the catalyst solution.

Abstract translation: 公开了一种用催化活性材料浸渍多孔整料载体的方法。 浸渍在基本上降低化学吸附速率的温度下进行，使得催化剂溶液中的整料衬底和催化活性材料之间的反应最小化。 该过程可以在实际的时间内完成，其允许衬底中催化活性材料的重量比与催化剂溶液中催化活性材料的重量比的单位选择性。

公开(公告)号：US06813907B2

公开(公告)日：2004-11-09

申请号：US09999553

申请日：2001-11-30

Applicant: Steven B. Dawes ,  William W. Johnson ,  Jason A. LaCoe ,  Michael T. Murtagh ,  Pushkar Tandon

Inventor： Steven B. Dawes ,  William W. Johnson ,  Jason A. LaCoe ,  Michael T. Murtagh ,  Pushkar Tandon

IPC: C03B37075

CPC classification number: C03B37/01446 ,  C03B37/0148 ,  C03B2201/12 ,  C03B2207/52

Abstract: The invention includes a method of incorporating fluorine into a preform that may be used to produce an optical article. A method that may be used to practice the invention includes a method of making an optical fiber preform. The method includes reacting a fluorine containing precursor in a flame of a combustion burner without forming a soot, thereby forming a fluorine doping atmosphere. A further method that may be practiced to practice the invention includes the step reacting at least a fluorine containing precursor in a flame of a combustion burner, wherein the precursors reacted in the flame are substantially devoid of the element of silicon, thereby forming a fluorine containing atmosphere for the doping of a soot preform. An additional method that may be used to practice the invention includes the step of reacting at least one precursor in the flame of a combustion burner, wherein said precursors comprise at least one fluorine containing compound and the precursors are substantially free of any silicon containing compound, and the additional step of directing a reaction product of said reacting step toward a soot preform.

公开(公告)号：US06744951B2

公开(公告)日：2004-06-01

申请号：US09850341

申请日：2001-05-07

Applicant: Steven B. Dawes ,  Michael E. DeRosa ,  Robert J. Hagerty

Inventor： Steven B. Dawes ,  Michael E. DeRosa ,  Robert J. Hagerty

IPC: G02B626

CPC classification number: G02B6/12011 ,  C09D4/06 ,  G02B6/12028 ,  G02B6/24 ,  G02B6/3801 ,  C08F259/08

Abstract: A method of coupling optical waveguides comprising the steps of: (i) providing at least one pair of waveguides located such that (a) light radiation propagating through one of the waveguides will be at least partially coupled to a corresponding waveguide and, (b) these waveguides are separated by a gap of about 2 &mgr;m to about 500 &mgr;m long; the waveguides having positive dn/dT; (ii) filling the gap with a photo-polymerizable composition, the composition having dn/dT of −2×10−4/C to −4×10−4/C; (iii) providing simultaneous photo-radiation through said waveguides, wherein the photo-radiation photo-polymerizes the composition, thereby (a) creating a first region bridging between the waveguides, the first region having a first index of refraction, and (b) a second region encapsulating the first region, the second region having a second index of refraction, such that said first index of refraction of the first region is at least 0.1% higher than the second index of refraction; and (iv) curing the remaining composition, while retaining an index difference of at least 0.1% between the first region and the second region.

Abstract translation: 一种耦合光波导的方法，包括以下步骤：（i）提供至少一对波导，其定位成使得（a）通过波导中的一个传播的光辐射将至少部分地耦合到相应的波导，并且（b） 这些波导由约2μm至约500μm的间隙隔开; 波导具有正的dn / dT; （ii）用可光聚合组合物填充间隙，该组合物的dn / dT为-2×10 -4 / 4至4×10 -4 /℃; （iii）通过所述波导提供同时的光辐射，其中所述光辐射光聚合所述组合物，从而（a）产生桥接在所述波导之间的第一区域，所述第一区域具有第一折射率，和（b） 封装所述第一区域的第二区域，所述第二区域具有第二折射率，使得所述第一区域的所述第一折射率比所述第二折射率高至少0.1％; 和（iv）固化剩余的组合物，同时保持第一区域和第二区域之间的至少0.1％的折射率差异。

公开(公告)号：US06511615B1

公开(公告)日：2003-01-28

申请号：US09633965

申请日：2000-08-08

Applicant: Steven B. Dawes ,  Ronald E. Johnson ,  Richard O. Maschmeyer ,  Robert D. Shoup

Inventor： Steven B. Dawes ,  Ronald E. Johnson ,  Richard O. Maschmeyer ,  Robert D. Shoup

IPC: B29D1100

CPC classification number: C03C17/007 ,  C03B19/12 ,  C03C17/009 ,  C03C17/34 ,  C03C2217/40 ,  G02B6/1221 ,  G02B6/13 ,  G02B6/132 ,  G02B6/138

Abstract: A planar optical device is formed on a substrate. The device comprises an array of waveguide cores which guide optical radiation. A cladding layer is formed contiguously with the array of waveguide cores to confine the optical radiation to the array of waveguide cores. At least one of the array of waveguide cores and cladding layer is an inorganic-organic hybrid material that comprises an extended matrix containing silicon and oxygen atoms with at least a fraction of the silicon atoms being directly bonded to substituted or unsubstituted hydrocarbon moieties. This material can be designed with an index of refraction between 1.4 and 1.55 and can be deposited rapidly to thicknesses of up to 40 microns. In accordance with another embodiment of the invention, a method for forming a planar optical device obviates the need for a lithographic process. Illustratively, a method for forming an array of cores comprises the steps of: (1) preparing a waveguide core composition precursor material comprising at least one silane and a source of hydrocarbon moiety, (2) partially hydrolyzing and polymerizing the waveguide core precursor material to form a waveguide core composition, (3) using a mold, forming an array of waveguide cores comprising the waveguide core composition, and (4) completing hydrolysis and polymerization of the waveguide core composition under conditions effective to form an inorganic-organic hybrid material that comprises an extended matrix containing silicon and oxygen atoms with at least a fraction of the silicon atoms being directly bonded to substituted or unsubstituted hydrocarbon moieties. A cladding layer is then deposited over the array of waveguide cores. The use of the mold to pattern the array of waveguide cores obviates the need for a lithographic process.

Abstract translation: 在基板上形成平面光学元件。 该装置包括引导光辐射的波导芯阵列。 包层与波导芯阵列连续地形成，以将光辐射限制在波导芯阵列上。 波导芯和包层阵列中的至少一个是无机 - 有机杂化材料，其包含含有硅和氧原子的延伸基质，其中至少一部分硅原子直接键合到取代或未取代的烃部分。 该材料可以设计为折射率在1.4和1.55之间，可以快速沉积到最大40微米的厚度。 根据本发明的另一个实施例，用于形成平面光学器件的方法消除了对光刻工艺的需要。 说明性地，形成芯阵列的方法包括以下步骤：（1）制备包含至少一种硅烷和烃部分源的波导芯组合物前体材料，（2）将波导芯前体材料部分水解和聚合成 形成波导芯组合物，（3）使用模具，形成包括波导芯组合物的波导芯阵列，和（4）在有效形成无机 - 有机杂化材料的条件下完成波导芯组合物的水解和聚合， 包括含硅和氧原子的延伸基质，至少一部分硅原子直接键合到取代或未取代的烃部分。 然后在波导芯阵列上沉积包覆层。 使用模具来对波导芯阵列进行图案化，从而不需要光刻工艺。

公开(公告)号：US6144795A

公开(公告)日：2000-11-07

申请号：US319800

申请日：1999-06-10

Applicant: Steven B. Dawes ,  Ronald E. Johnson ,  Richard O. Maschmeyer ,  Robert D. Shoup

Inventor： Steven B. Dawes ,  Ronald E. Johnson ,  Richard O. Maschmeyer ,  Robert D. Shoup

IPC: C03B19/12 ,  C03C17/00 ,  C03C17/34 ,  G02B6/122 ,  G02B6/13 ,  G02B6/132 ,  G02B6/138 ,  G02B6/00

CPC classification number: C03C17/007 ,  C03B19/12 ,  C03C17/009 ,  C03C17/34 ,  G02B6/1221 ,  G02B6/13 ,  G02B6/132 ,  G02B6/138 ,  C03C2217/40

Abstract: A planar optical device is formed on a substrate (12) and comprising an array of waveguide cores (14) and a cladding layer (16) formed contiguously with the cores. At least one of the array of waveguide cores (14) and the cladding layer (16) is an inorganic-organic hybrid material that comprises an extended matrix containing silicon and oxygen atoms with at least a fraction of the silicon being directly bonded to substituted or unsubstituted hydrocarbon atoms. In accordance with other embodiments of the invention, a method of forming an array of cores comprises the steps of preparing a core composition precursor material; partially hydrolyzing and polymerizing the material; forming an array of waveguide cores under conditions effective to form an inorganic-organic hybrid material that comprises an extended matrix containing silicon and oxygen atoms with at least a fraction of the silicon being directly bonded to substituted or unsubstituted hydrocarbon atoms.

Abstract translation: PCT No.PCT / US97 / 22760 Sec。 371日期1999年6月10日第 102（e）1999年6月10日PCT 1997年12月12日PCT PCT。 公开号WO98 / 26315 日期：1999年6月18日平面光学器件形成在基板（12）上，并且包括与芯体相邻形成的波导芯（14）和包覆层（16）的阵列。 波导芯阵列（14）和包覆层（16）中的至少一个是无机 - 有机杂化材料，其包含含有硅和氧原子的延伸基质，其中硅的至少一部分直接键合到取代或 未取代的烃基。 根据本发明的其它实施例，形成芯阵列的方法包括制备芯组合物前体材料的步骤; 部分水解和聚合材料; 在有效形成无机 - 有机杂化材料的条件下形成波导芯阵列，该材料包括含硅和氧原子的延伸基质，至少一部分硅直接键合到取代或未取代的烃原子上。