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    • 81. 发明申请
    • WAVELENGTH-ADDRESSABLE OPTICAL TIME-DELAY NETWORK AND PHASED ARRAY ANTENNA INCORPORATING THE SAME
    • 波长可寻址的光时延网络和相应的阵列天线
    • WO1998002765A1
    • 1998-01-22
    • PCT/US1997011657
    • 1997-07-11
    • McDONNELL DOUGLAS CORPORATION
    • McDONNELL DOUGLAS CORPORATIONJOHNSON, Bartley, Clark
    • G02B06/26
    • H01Q3/2676G02B6/2861
    • An optical switch network (10) which includes a plurality N of cascaded optical switching stages, each mth one of the switching stages including 2 Mach-Zehnder interferometers (12) where m = 1 through N. The input port of the Mach-Zehnder interferometer (12) of the first one of the optical switching stages receives an optical input signal, and the 2 Mach-Zehnder interferometers (12) of the Nth one of the optical switching stages provide a total of 2 output ports. Each of the Mach-Zehnder interferometers is preferably an unbalanced Mach-Zehnder interferometer, and the optical input signal preferably has a wavelength which is a selected one of 2 selectable wavelengths. Also disclosed is an optical time delay network (30) comprised of an optical switch network as described above, and a plurality 2 of optical delay lines of different lengths coupled to respective ones of the 2 output ports of the Nth one of the optical switching stages, each of the optical delay lines (30) being comprised of an optical waveguide having a light reflecting end.
    • 一种光开关网络(10),其包括多个N级级的光开关级,每个第m个开关级包括m = 1至N的2 m-1> Mach-Zehnder干涉仪(12)。输入端口 第一个光开关级的马赫策德尔干涉仪(12)接收光输入信号,并且第N个光开关级的2 马赫 - 策德尔干涉仪(12)提供总共 的2 个输出端口。 每个马赫策德尔干涉仪优选地是不平衡的马赫 - 策德尔干涉仪,并且光输入信号优选地具有被选择的2个可选择波长中的一个的波长。 还公开了由如上所述的光开关网络组成的光时延网络(30),以及耦合到第N个输出端口的两个输出端口中的不同长度的多个2 N个光延迟线 光开关级中的一个,每个光延迟线(30)由具有光反射端的光波导构成。
    • 82. 发明申请
    • REFLECTOR FOR ILLUMINATION SYSTEM
    • 用于照明系统的反射器
    • WO1997043674A1
    • 1997-11-20
    • PCT/US1997007869
    • 1997-05-09
    • REMOTE SOURCE LIGHTING INTERNATIONAL, INC.
    • REMOTE SOURCE LIGHTING INTERNATIONAL, INC.RISER, Andrew, P.ALBRECHT, Richard, E.
    • G02B06/26
    • F21V7/04G02B6/0006G02B6/2817G02B6/2848G02B6/4298Y10S385/901
    • A hollow light guide illumination system is provided for coupling light from an illumination source (60) to a hollow light guide (62), which is used for a variety of purposes, such as tunnels, hallways, and large rooms where direct lighting is dangerous, difficult to maintain or subject to vandalism. The illumination system employs an illumination reflector (77) which has been customized to maximize the efficiency of light transmission between the illumination source (60), such as an arc lamp, and the core of the hollow light guide (62). A method of fabricating the customized illumination reflector (77) includes mapping the radiation patterns of the particular illumination source (60) to be utilized, creating a database of those radiation patterns, and utilizing the database to generate an optimal illumination reflector (77) configuration. The computer-generated reflector (77) will virtually always be a non-conic section, because the illumination source (60) is not ideal.
    • 提供了一种中空导光照明系统,用于将来自照明源(60)的光耦合到用于诸如隧道,走廊和直接照明危险的大房间的各种目的的空心光导(62) ,难以维持或受到破坏。 照明系统采用已经定制的照明反射器(77),以使诸如弧光灯的照明源(60)和中空导光体(62)的芯之间的光透射效率最大化。 制造定制的照明反射器(77)的方法包括映射要使用的特定照明源(60)的辐射图案,创建这些辐射图案的数据库,并利用数据库生成最佳照明反射器(77)配置 。 由于照明源(60)不理想,所以计算机产生的反射器(77)实际上将始终是非圆锥形部分。
    • 84. 发明申请
    • MULTI-NECKDOWN FIBER OPTIC COUPLER
    • 多芯光纤耦合器
    • WO1997012269A1
    • 1997-04-03
    • PCT/US1996014794
    • 1996-09-12
    • CORNING INCORPORATED
    • CORNING INCORPORATEDWEIDMAN, David, Lee
    • G02B06/26
    • G02B6/2938G02B6/243G02B6/2856G02B6/29353G02B2006/2865
    • A unitary fiber optic coupling device (10) in which N fibers (16) (N>3) extend in a parallel array having two coupling regions (11, 12) of reduced cross-sectional area. At least one of the fibers (16) is formed of two sections that are situated end-to-end, an active core-containing fiber (47) section that is situated in the first coupling region and a dummy fiber section (52) that is situated in the second coupling region. The coupler also contains at least second and third fibers that are active core-containing fibers (47) throughout their lengths. The second and third fibers couple to one another in the first coupling region but remain uncoupled to one another in the second coupling region. Two fibers that couple in the first coupling region do not couple in the second coupling region, thus avoiding resonance effects.
    • 一种其中N根纤维(16)(N> 3)以具有减小的横截面积的两个耦合区域(11,12)的平行阵列延伸的单一光纤耦合装置(10)。 纤维(16)中的至少一个由位于端对端的两个部分形成,位于第一耦合区域中的含有活性芯的纤维(47)部分和虚拟纤维部分(52),其中 位于第二耦合区域中。 耦合器还包括至少第二和第三纤维,其在整个长度上都是活性含芯纤维(47)。 第二和第三光纤在第一耦合区域中彼此耦合,但在第二耦合区域中彼此不耦合。 耦合在第一耦合区域中的两个光纤在第二耦合区域中不耦合,从而避免共振效应。
    • 85. 发明申请
    • MACH-ZEHNDER SWITCH
    • MACH-ZEHNDER开关
    • WO1996042027A1
    • 1996-12-27
    • PCT/US1996007648
    • 1996-05-23
    • CORNING INCORPORATED
    • CORNING INCORPORATEDMILLER, William, J.NOLAN, Daniel, A.
    • G02B06/26
    • G02F1/3517G02B6/2835G02B6/29352G02B2006/12145G02F1/3131G02F1/3136
    • A compact monolithic Mach-Zehnder switch is formed such that one of the waveguide paths (69, 70) between the input and output couplers (67, 68) contains a material which exhibits a resonant nonlinearity, whereby its refractive index changes when pump power propagates through it. Each of the waveguide paths (69, 70) has a different propagation constant whereby signal light is subjected to a different delay in each path when no pump power is propagating through the rare nonlinear path. An input signal applied to the input (71, 72) of the switch appears at a first output terminal (73, 74) when the pump power does not propagate through the nonlinear path, and it appears at a second output terminal (73, 74) when the pump power is applied to the nonlinear path. Switching occurs at relatively low levels of pump power.
    • 形成紧凑的单片马赫 - 策德尔开关,使得输入和输出耦合器(67,68)之间的波导路径(69,70)中的一个包含呈现谐振非线性的材料,由此当泵浦功率传播时其折射率改变 通过它。 每个波导路径(69,70)具有不同的传播常数,由此当没有泵浦功率传播通过罕见的非线性路径时,信号光在每个路径中经受不同的延迟。 当泵浦功率不通过非线性路径传播时,施加到开关的输入端(71,72)的输入信号出现在第一输出端子(73,74)处,并且出现在第二输出端子(73,74) )当泵功率施加到非线性路径时。 切换发生在泵功率相对较低的水平。
    • 86. 发明申请
    • TEMPERATURE COMPENSATED FIBER FABRY-PEROT FILTERS
    • 温度补偿光纤贴片过滤器
    • WO1996005529A1
    • 1996-02-22
    • PCT/US1995009911
    • 1995-08-04
    • MICRON OPTICS, INC.
    • MICRON OPTICS, INC.MILLER, Calvin, M.MILLER, Jeffrey, W.
    • G02B06/26
    • G02B6/29395G01J3/26G02B6/29359G02B6/29398G02B6/3845G02B6/4226
    • This invention relates to FFPs with improved means for alignment of optical fibers. The invention provides ferrule holders (20B) with shaped ferrule passageways (22), as components of FFP alignment fixtures, in which optical fiber ends can be readily aligned using the ferrule rotary alignment method. Ferrule holders (20B) for use in temperature compensated FFPs include those fabricated from low temperature coefficient alloys, such as Kovar . Ferrule holders optionally have a composite structure facilitating temperature compensation required for applications to PZT-tuned FFPs. These ferrule holders have a core and peripheral portion made of materials having different thermal expansion coefficients. The holder core in contact with the ferrule (10, 11) is made of a material having a thermal expansion coefficient substantially matched to that of the ferrule material. In addition, ferrule holders are provided with a means for changing the points of contact between a secured ferrule and its holder which allows wavelength drift as a function of temperature in FFPs to be adjusted.
    • 本发明涉及具有改进的光纤对准装置的FFP。 本发明提供具有成形套圈通道(22)的套圈保持器(20B),作为FFP对准夹具的部件,其中光纤端部可以使用套圈旋转对准方法容易地对准。 用于温度补偿FFP的套圈保持器(20B)包括由低温系数合金(如Kovar TM)制成的那些。 套圈座可选地具有便于对PZT调谐FFP应用所需的温度补偿的复合结构。 这些套圈保持架具有由具有不同热膨胀系数的材料制成的芯部和周边部分。 与套圈(10,11)接触的保持器芯由具有与套圈材料的热膨胀系数基本匹配的热膨胀系数的材料制成。 此外,套圈保持器设置有用于改变固定套圈和其保持器之间的接触点的装置,其允许波长漂移作为要调节的FFP中的温度的函数。
    • 87. 发明申请
    • OPTICAL NON-RECIPROCAL DEVICES
    • 非聚焦光波导耦合器件
    • WO1995016216A1
    • 1995-06-15
    • PCT/CA1994000725
    • 1994-12-09
    • JDS FITEL INC.CHENG, YihaoDUCK, Gary, Stephen
    • JDS FITEL INC.
    • G02B06/26
    • G02B6/2746G02F1/093Y10S372/703
    • A non-reciprocal optical device interconnects single mode optical fiber waveguides (10A, 10B, 11A, 11B) so that a light beam can pass between input and output fibres in a forward direction but a reverse beam, such as might be caused by unwanted reflections, is displaced so that it does not couple into the input fiber. The device includes a focussing lens unit (14) and at least one non-reciprocal optical element (15; 21) in series between respective ends of an input optical fiber and an output optical fiber. The focussing lens unit has a focal length such that a light beam from the input optical fiber will be focussed onto the end of the output optical fiber. The focussing lens unit may comprise, for example, a half-pitch grin-rod lens. The non-reciprocal device is positioned adjacent one or other of the foci of the focussing lens unit. The focussing lens unit may comprise several lens elements (14A, 14B), for example a pair of quarter pitch collimating lenses, allowing additional optical elements (22), such as filters, to beinterposed. An isolator/wavelength division multiplexing hybrid device is formed by interposing a wavelength-division multiplexing filter and arranging the geometry so that different wavelength light beams are coupled to different output fibers. High isolation and low insertion loss are achieved in a compact device because the non-reciprocal device is placed where the width of the light beams is small.
    • 不可逆光学器件将单模光纤波导(10A,10B,11A,11B)互连,使得光束可以在向前方向上的输入和输出光纤之间通过,但是反向光束可能由不期望的反射引起 被移位,使得它不耦合到输入光纤中。 该装置包括聚焦透镜单元(14)和至少一个在输入光纤的各个端部和输出光纤之间串联的不可逆光学元件(15; 21)。 聚焦透镜单元具有焦距,使得来自输入光纤的光束将被聚焦到输出光纤的端部上。 聚焦透镜单元可以包括例如半间距微光杆透镜。 不可逆装置位于聚焦透镜单元的一个或另一个焦点附近。 聚焦透镜单元可以包括多个透镜元件(14A,14B),例如一对四分之一间距准直透镜,允许附加诸如滤光器的附加光学元件(22)。 隔离器/波分复用混合器件通过插入波分多路复用滤波器并布置几何结构形成,使得不同的波长光束耦合到不同的输出光纤。 在紧凑的装置中实现了高隔离度和低插入损耗,因为不可逆装置被放置在光束宽度小的地方。
    • 90. 发明申请
    • LIGHT COUPLING DEVICE FOR OPTICAL FIBRES
    • 用于光纤的光耦合器件
    • WO1994006043A1
    • 1994-03-17
    • PCT/US1993008449
    • 1993-09-07
    • BRAIMAN, Mark, S.JONAS, Roy, E.
    • G02B06/26
    • G02B6/4296G01N21/552G02B6/3814G02B6/4204G02B6/4298
    • A light source to optical fiber coupling device includes a light source, a diamond coupler, preferably in the form of a rod, and an optical fiber or fibers. The first end of the diamond is coupled to the light source and both the light source and first end of the diamond coupler are in a light reflective chamber. The second end of the diamond coupler extends into a passageway. A thermally conductive top housing is provided to provide cooling of the system. The chamber has reflective surfaces, preferably formed of gold, to enable efficient transmission into the fiber of light rays traveling at angles greater than 58 degrees from the fiber axis. Electrically conductive retaining bars, preferably platinum, secure the light source within the chamber. The optical fibers have one end extending at least partially into the passageway proximate the diamond coupler and which is optically coupled to the diamond coupler.
    • 光纤到光纤耦合器件的光源包括光源,金刚石耦合器,优选为棒形,以及光纤或光纤。 金刚石的第一端耦合到光源,并且金刚石耦合器的光源和第一端都在光反射室中。 金刚石耦合器的第二端延伸到通道中。 提供导热顶壳体以提供系统的冷却。 该腔室具有优选由金形成的反射表面,以使得能够有效地透射到与光纤轴线大于58度的角度行进的光线的光纤中。 导电保持杆,优选铂,将光源固定在腔室内。 光纤具有至少部分地延伸到靠近金刚石耦合器的通道中并且光学耦合到金刚石耦合器的一端。