(DE)MULTIPLEXER WITH INTERLEAVER FOR PRODUCING A FLAT-TOP FILTER FUNCTION AND ENHANCED CHANNEL SEPARATION
    31.
    发明申请
    (DE)MULTIPLEXER WITH INTERLEAVER FOR PRODUCING A FLAT-TOP FILTER FUNCTION AND ENHANCED CHANNEL SEPARATION 审中-公开
    (DE)多用途交错滤波器,用于生产平顶滤波器功能和增强型信道分离

    公开(公告)号:WO02071672A3

    公开(公告)日:2002-11-14

    申请号:PCT/US0206755

    申请日:2002-03-01

    CPC classification number: H04J14/02 G02B6/29308 G02B6/2931 G02B6/29386

    Abstract: An apparatus and method are provided employing a single set of reduced-cost optics for (de)multiplexing optical signals whereby the resultant signals have a flat-top response with increased channel spacing. One aspect of the present invention uses an optical interleaver (310) to separate channels from an input multichannel (multiplexed) optical signal (302) with a select channel spacing into, for example, two input signals consisting of alternating channels at twice the select channel spacing. The separated signals are then directed to a multiple-input, such as dual-input, (parallel)(de)multiplexer device (320) which further spacially separates the channels for coupling with single channel transmission fibers (3221-n, 3241-n). The input fibers to the (de)multiplexer are preferably offset relative to each other to accommodate channel shift resulting from the interleaver.

    Abstract translation: 提供了一种装置和方法,其采用用于(反)多路复用光学信号的单组成本光学器件,由此所得信号具有增加的通道间隔的平顶响应。 本发明的一个方面使用光学交织器(310)将信道从具有选择信道间隔的输入多信道(复用)光信号(302)分离为例如两个输入信号,该两个输入信号由选择信道两倍处的交替信道 间距。 然后将分离的信号引导到多输入端,例如双输入,(并联)(去)多路复用器设备(320),其进一步在空间上分离信道以与单信道传输光纤(3221-n,3241-n )。 (去)多路复用器的输入光纤优选相对于彼此偏移以适应由交织器导致的信道偏移。

    ALL-FIBER ARCHITECTURE FOR AN EMBEDDED FLIGHT SENSOR FOR AEROPROPULSION APPLICATIONS
    32.
    发明申请
    ALL-FIBER ARCHITECTURE FOR AN EMBEDDED FLIGHT SENSOR FOR AEROPROPULSION APPLICATIONS 审中-公开
    全纤维架构适用于航空航天应用的嵌入式飞行传感器

    公开(公告)号:WO2008054429A2

    公开(公告)日:2008-05-08

    申请号:PCT/US2006060931

    申请日:2006-11-15

    Abstract: An embedded flight sensor system having a laser and one or more flight sensors in optical communication with the laser plus a data processing device in optical communication with the flight sensors. The flight sensors may be laser based optical components such as a fiber Bragg grating in combination with an optical detector, a spectroscopy grating and detector or an optical detector associated with catch optics. The parameters sensed by the flight sensors may be used to determine any flight parameter. Representative flight parameters include but are not limited to an airframe or external surface temperature, airstream velocity, combustion zone temperature, engine inlet temperature, a gas concentration or a shock front position.

    Abstract translation: 一种嵌入式飞行传感器系统,具有激光器和一个或多个与激光器光通信的飞行传感器以及与飞行传感器光通信的数据处理设备。 飞行传感器可以是基于激光的光学部件,例如光纤布拉格光栅与光学检测器,光谱光栅和检测器或与捕捉光学器件相关联的光学检测器的组合。 由飞行传感器感测的参数可以用于确定任何飞行参数。 代表性飞行参数包括但不限于机身或外表面温度,气流速度,燃烧区温度,发动机入口温度,气体浓度或冲击前沿位置。

    METHOD AND APPARATUS FOR THE MONITORING AND CONTROL OF COMBUSTION
    33.
    发明申请
    METHOD AND APPARATUS FOR THE MONITORING AND CONTROL OF COMBUSTION 审中-公开
    用于监测和控制燃烧的方法和装置

    公开(公告)号:WO2004090496A3

    公开(公告)日:2005-05-19

    申请号:PCT/US2004010048

    申请日:2004-03-31

    Abstract: A sensing apparatus (10) consisting of more than one diode laser (12) having select lasing frequencies, a multiplexer (16) optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic (20) operatively associated with a process chamber (22) which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic (20) is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic (24) in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic (24) is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer (28). The demultiplexer (28) demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector (25) with the detector being sensitive to one of the select lasing frequencies.

    Abstract translation: 由具有选择的激光频率的多于一个的二极管激光器(12)组成的感测装置(10),多路复用器(16),光耦合到二极管激光器的输出端,多路复用器进一步光耦合到俯仰侧光纤。 复用激光通过节距侧光纤传输到与处理室(22)可操作地相关联的俯仰光学器件(20),所述处理室可以是燃烧室或煤或燃气发电厂的锅炉。 俯仰光学器件(20)被定向成将多路复用的激光输出投影通过处理室。 还与操作室一起操作地定向的是与俯仰光学器件光学通信的接收光学器件(24),以接收通过处理室投射的多路复用的激光输出。 捕获光学器件(24)光耦合到将多路复用的激光输出传输到解复用器(28)的光纤。 解复用器(28)将激光解复用并将选择的激光频率光耦合到检测器(25),检测器对选择的激光频率之一敏感。

    APPARATUS AND METHOD FOR THE REDUCTION OF POLARIZATION SENSITIVITY IN DIFFRACTION GRATINGS USED IN FIBER OPTIC COMMUNICATIONS DEVICES
    34.
    发明申请
    APPARATUS AND METHOD FOR THE REDUCTION OF POLARIZATION SENSITIVITY IN DIFFRACTION GRATINGS USED IN FIBER OPTIC COMMUNICATIONS DEVICES 审中-公开
    在光纤通信设备中使用的衍射光栅中降低偏振灵敏度的装置和方法

    公开(公告)号:WO0177738A3

    公开(公告)日:2002-05-16

    申请号:PCT/US0111146

    申请日:2001-04-06

    Inventor: SAPPEY ANDREW D

    CPC classification number: G02B5/1861 Y10S359/90

    Abstract: A diffraction grating (10') for use in multiplexing and demultiplexing optical signals in optical communication systems having reduced polarization sensitivity has a plurality of reflective step surfaces (16') separated by a plurality of riser surfaces (18') defining grooves of the grating. The step surfaces (16') have a reflective coating (22') and the riser surfaces (18') do not have a conductive coating. A method of making a reflective diffraction grating includes forming a plurality of grooves in a substrate, the grooves having a reflective surface for reflecting an incident beam and non-reflective surface and providing a reflective coating on the reflective surface and not on the non-reflective surface.

    Abstract translation: 用于复用和解复用具有降低的偏振灵敏度的光通信系统中的光信号的衍射光栅(10')具有多个反射台阶表面(16'),多个反射台阶表面(16')由多个提供了光栅的凹槽的提升板表面(18')分开, 。 台阶表面(16')具有反射涂层(22'),并且提升板表面(18')不具有导电涂层。 制造反射衍射光栅的方法包括在衬底中形成多个凹槽,所述凹槽具有用于反射入射光束和非反射表面的反射表面,并且在反射表面上提供反射涂层,而不是在非反射 表面。

    RECONFIGURABLE ADD/DROP MULTIPLEXER FOR FIBER OPTIC NETWORKS
    35.
    发明申请
    RECONFIGURABLE ADD/DROP MULTIPLEXER FOR FIBER OPTIC NETWORKS 审中-公开
    用于光纤网络的可重新配置的多路复用器

    公开(公告)号:WO0146731A3

    公开(公告)日:2002-05-10

    申请号:PCT/US0041191

    申请日:2000-10-17

    Inventor: SAPPEY ANDREW D

    Abstract: A reconfigurable add/drop multiplexer (100, 150) for use in an optical communications network includes an input optical waveguide (118, 162) propagating a multi-channel optical signal and a receiver optical waveguide (120, 170) optically aligned with the input waveguide. A transmission filter (106, 164) is in optical communication between the input optical waveguide and the receiver optical waveguide (120, 170) with the transmission filter being tunable to drop a select channel to the receiver optical waveguide (120, 170) and to reflect the remaining channels of the multi-channel optical signal. A retransmission waveguide (118, 162) is in optical communication with the transmission filter to receive the reflected remaining channels. A second receiver waveguide (130, 174) is in optical communication with the receiver waveguide (120, 170). A selectively reflective apparatus (108, 168) is in optical communication between the receiver optical waveguide and the second receiver optical waveguide for selectively reflecting the dropped channel or transmitting the dropped channel to the second receiver waveguide. A second retransmission waveguide (130, 182) in optical communication with the selectively reflective means receives a reflected optical signal. A method of dropping a select channel of a multi-channel optical signal propagated along a main optical waveguide without loss of data includes directing the multi-channel optical signal from the main optical waveguide to an input waveguide. The receiver waveguide is optically aligned with the input waveguide. A tunable transmission filter is provided in optical communication between the input and receiver waveguides. The transmission filter is tuned to drop a select channel to the receiver optical waveguide and to reflect the remaining channels of the multi-channel optical signal to a retransmission optical waveguide in optical communication with the main optical fiber. All dropped channels are reflected for repropagation along the main optical waveguide while the tunable transmission filter is tuned between first and second select channels. The transmission filter (106, 164) may be a wedged-etalon having a cavity that varies uniformly in width between a widest operative end and a narrowest operative end along a filtering axis in optical communication between the input and receiver waveguides. An actuator (107) moves the wedged-etalon out to select positions between the widest and narrowest operative ends to drop a select channel.

    Abstract translation: 用于光通信网络的可重配置分插复用器(100,150)包括传播多通道光信号的输入光波导(118,162)和与输入端光学对准的接收器光波导(120,170) 波导。 传输滤波器(106,164)在输入光波导和接收器光波导(120,170)之间光通信,传输滤波器可调,以将选择信道丢弃到接收机光波导(120,170),并且 反映多通道光信号的剩余通道。 重发波导(118,162)与发射滤波器光通信以接收反射的剩余信道。 第二接收器波导(130,174)与接收器波导(120,170)光学通信。 选择性反射设备(108,168)在接收机光波导和第二接收机光波导之间光学通信,用于选择性地反射掉掉的信道或将丢弃的信道发送到第二接收机波导。 与选择性反射装置光学通信的第二重传波导(130,182)接收反射光信号。 丢弃沿着主光波导传播的多通道光信号的选择信道而不丢失数据的方法包括将来自主光波导的多信道光信号引导到输入波导。 接收器波导与输入波导光学对准。 在输入和接收波导之间的光通信中提供可调谐传输滤波器。 传输滤波器被调谐以将选择信道丢弃到接收机光波导,并将多信道光信号的剩余信道反射到与主光纤进行光通信的重发光波导。 所有下降的通道被反射以沿着主光波导的重新传播,而可调透射滤光器在第一和第二选择通道之间调谐。 传输滤波器(106,164)可以是楔形标准具,其具有在输入和接收器波导之间的光学通信中沿着滤波轴在最宽的操作端和最窄的操作端之间宽度均匀地变化的空腔。 致动器(107)将楔形标准具移出以选择在最宽和最窄的操作端之间的位置以丢弃选择通道。

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