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公开(公告)号：US08520306B2
公开(公告)日：2013-08-27
申请号：US12998438
申请日：2009-10-23
CPC分类号： H01S3/2383 , H01S3/0085 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H01S3/1304 , H01S3/1305 , H01S3/1307 , H01S2301/03
摘要： Apparatus for combining laser radiation (1) 5 which apparatus comprises a seed laser (2), a splitter (3), a plurality of amplifier chains (4), a reference amplifier chain (7), detection means (5). demodulator means (6), and phase control means (12), wherein each of the amplifier chains (4) comprises at least one optical amplifier (11), optical radiation (17) emitted from the seed laser (2) is split into the plurality of amplifier chains (4) by the splitter (3). amplified by the plurality of amplifier chains (4), interfered, detected by the detection means (5), demodulated by the demodulator means (6), and a signal (27) indicative of path length imbalance (14) fed back to the phase control means (12), and wherein the apparatus is characterized in that the output power emitted by each amplifier chain (4) is at least 50 W, the bandwidth (8) of the seed laser (2) is at least 1 GHz, and the path length difference (14) between each amplifier chain (4) and the reference amplifier chain (7) is less than the coherence length (10) of the seed laser (2).
摘要翻译： 用于组合激光辐射（1）5的装置，该装置包括种子激光器（2），分束器（3），多个放大器链（4），参考放大器链（7），检测装置（5）。 解调器装置（6）和相位控制装置（12），其中每个放大器链（4）包括至少一个光放大器（11），从种子激光器（2）发射的光辐射（17）被分成 多个放大器链（4）由分离器（3）组成。 由所述多个放大器链（4）放大，由所述检测装置（5）检测到被所述解调器装置（6）解调的干扰，以及指示反馈到所述相位的路径长度不平衡（14）的信号（27） 控制装置（12），其特征在于，每个放大器链（4）发射的输出功率至少为50W，种子激光器（2）的带宽（8）至少为1GHz，以及 每个放大器链（4）和参考放大器链（7）之间的路径长度差（14）小于种子激光器（2）的相干长度（10）。
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2.发明授权Method and structure for incorporating fiber optic acoustic sensors in a seismic array 有权在地震阵列中并入光纤声学传感器的方法和结构公开(公告)号：US06211964B1
公开(公告)日：2001-04-03
申请号：US09344098
申请日：1999-06-25
申请人： John Luscombe , John L. Maida, Jr. , Malcolm Paul Varnham , Erhard Lothar Edgar Kluth , Sam Bull
发明人： John Luscombe , John L. Maida, Jr. , Malcolm Paul Varnham , Erhard Lothar Edgar Kluth , Sam Bull
IPC分类号： G01B902
CPC分类号： G01H9/004 , G01B9/02002 , G01B9/02005 , G01B9/02007 , G01B9/02023 , G01B9/02027 , G01B9/0205 , G01B9/0209
摘要： A structure for incorporating fiber optic acoustic sensor in a seismic array includes means for supporting the sensor in a spiral around a central strength member in a manner to isolate shear waves from the sensor. In another aspect, an axially oriented sensor in a seismic array comprises a pressure sensitive optical fiber wound in a spiral around the axis, the fiber having a plurality of optical Bragg gratings and a plurality of channels. The preferred structure may include four tubes spiraling around the strength member. One of the tubes encloses an optical fiber sensor which is maintained in an extended orientation by fluid flow through the tube. Another of the tubes serves as a return path for fluid through the sensor tube. The other tubes enclose high speed and low speed data conductors, respectively. The sensor fiber may also be wound in a spiral around a compliant core in a manner to satisfy Poisson's Ratio such that strain on the compliant core does not alter the tension of the sensor fiber.
摘要翻译： 用于将光纤声学传感器结合在地震阵列中的结构包括用于将传感器以围绕传感器隔离剪切波的方式以围绕中心强度构件的螺旋形支撑的装置。 在另一方面，地震阵列中的轴向定向的传感器包括缠绕在轴线周围的螺旋的压敏光纤，光纤具有多个光学布拉格光栅和多个通道。 优选的结构可以包括围绕强度构件螺旋的四个管。 一个管子包围一个光纤传感器，它通过流体流过管道而保持在一个延伸的方向。 另一个管用作通过传感器管的流体的返回路径。 其他管分别包围高速和低速数据导体。 传感器光纤也可以以满足泊松比的方式围绕柔性芯缠绕成螺旋形，使得柔性芯上的应变不会改变传感器光纤的张力。
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公开(公告)号：US07508574B2
公开(公告)日：2009-03-24
申请号：US12008328
申请日：2008-01-10
IPC分类号： G02B6/26
CPC分类号： H01S3/2383 , G02B6/4201 , G02B6/4206 , H01S3/067 , H01S3/06729 , H01S3/06741 , H01S3/094003 , H01S3/094015 , H01S3/094019 , H01S3/094042 , H01S3/094061 , H01S3/09408
摘要： Apparatus for providing optical radiation (10) comprising a pump array (8) for providing pump radiation (7), a first pump combiner (1), and a waveguide (3), wherein the pump radiation (7) from the pump array (8) is coupled into the waveguide (3) via the first pump combiner (1), and wherein the waveguide (3) comprises a pump guide (4) for guiding the pump radiation (7), and a gain medium (5) which emits the optical radiation (10) when it is pumped by the pump radiation (7).
摘要翻译： 一种用于提供光辐射（10）的装置，包括用于提供泵辐射（7）的泵阵列（8），第一泵组合器（1）和波导（3），其中来自泵阵列的泵辐射（7） 8）通过第一泵组合器（1）耦合到波导（3）中，并且其中波导（3）包括用于引导泵浦辐射（7）的泵引导件（4）和增益介质（5） 当泵浦辐射（7）泵送时，发射光辐射（10）。
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公开(公告)号：US07421175B2
公开(公告)日：2008-09-02
申请号：US10561021
申请日：2004-06-23
申请人： Malcolm Paul Varnham
发明人： Malcolm Paul Varnham
CPC分类号： H01S3/06708 , H01S3/06729 , H01S3/094007
摘要： Apparatus for providing optical radiation, which apparatus comprises an optical fibre (5) having a core (3), a first cladding (1) and a second cladding (2), in which the first cladding (1) has a substantially constant diameter (9) in its cross-section. The first cladding (1) can be non-circular. Advantages include more reliable cleaving, joining and splicing.
摘要翻译： 用于提供光辐射的装置，该装置包括具有芯（3），第一包层（1）和第二包层（2）的光纤（5），其中第一包层（1）具有基本恒定的直径 9）在其横截面。 第一包层（1）可以是非圆形的。 优点包括更可靠的切割，接合和拼接。
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公开(公告)号：US06532839B1
公开(公告)日：2003-03-18
申请号：US09432495
申请日：1999-11-02
IPC分类号： G01M1900
CPC分类号： E21B17/003 , E21B23/08 , E21B33/072 , E21B47/0006 , E21B47/01 , E21B47/12 , E21B47/123 , G02B6/4464
摘要： Methods and apparatus for the remote measurement of physical parameters are described. The apparatus includes a sensor, sensor instrumentation, a carbon coated optical fiber cable for extending between the sensor and the sensor instrumentation, a conduit for extending to a measurement location and configured to accommodate the optical fiber cable and the sensor, and a cable installing device configured to install the sensor and the optical fiber cable through the conduit and place the sensor at the measurement location. The cable installation device includes an apparatus for propelling a fluid along the conduit, such as a pump, a compressor, and the like. In the method, a sensor is installed at a measurement location by pumping the sensor and a carbon-coated optical fiber cable through a conduit, forming a seal around the cable where it enters the conduit, and connecting the cable to sensor instrumentation.
摘要翻译： 描述用于远程测量物理参数的方法和装置。 该设备包括传感器，传感器仪器，用于在传感器和传感器仪器之间延伸的涂碳光纤电缆，用于延伸到测量位置并被配置为容纳光纤电缆和传感器的导管，以及电缆安装装置 配置为通过导管安装传感器和光纤电缆，并将传感器放置在测量位置。 电缆安装装置包括用于沿管道推动流体的装置，例如泵，压缩机等。 在该方法中，传感器通过泵送传感器和碳涂覆的光缆穿过导管安装在测量位置，在电缆进入管道周围形成密封，并将电缆连接到传感器仪器。
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公开(公告)号：USRE37283E1
公开(公告)日：2001-07-17
申请号：US09183327
申请日：1998-10-29
IPC分类号： G02B600
CPC分类号： G01D5/268 , E21B19/22 , E21B33/072 , E21B47/00 , E21B47/123 , G08C23/06
摘要： Apparatus for the remote measurement of physical parameters comprising sensing means (1) for sensing at least one physical parameter, instrumentation means (2) for interrogating the sensing means (1) and making a measurement, cable means (3) for communicating between the sensing means (1) and the instrumentation means (2), container means (4) for containing the sensing means (1) and the cable means (3) prior to installation of the sensing means (1), container holder means (5) for providing a support for the container means (4) at a convenient location, channel means (6) for providing a channel between the container means (4) and a measurement location where the channel is suitable for accepting the cable means (3) and the sensing means (1), and cable installation means (9) for installing the sensing means (1) and cable means (3) from inside the container means (4) into the channel means (6) and placing the sensing means (1) at the measurement location.
摘要翻译： 用于远程测量物理参数的设备，包括用于感测至少一个物理参数的感测装置（1），用于询问感测装置（1）并进行测量的仪器装置（2），用于在感测之间进行通信的电缆装置（3） 装置（1）和仪表装置（2），用于在安装感测装置（1）之前容纳感测装置（1）和电缆装置（3）的容器装置（4），用于 在便利的位置处为容器装置（4）提供支撑，用于在容器装置（4）和通道适合于接纳电缆装置（3）的测量位置之间提供通道的通道装置（6） 感测装置（1）和用于将感测装置（1）和电缆装置（3）从容器装置（4）内部安装到通道装置（6）中并安置感测装置（1）的电缆安装装置（9） 在测量位置。
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公开(公告)号：US6160762A
公开(公告)日：2000-12-12
申请号：US98918
申请日：1998-06-17
申请人： John Luscombe , Gary J. Craig , John L. Maida, Jr. , Louis W. Erath , Malcolm Paul Varnham , Ed Kluth
发明人： John Luscombe , Gary J. Craig , John L. Maida, Jr. , Louis W. Erath , Malcolm Paul Varnham , Ed Kluth
CPC分类号： G01V1/186 , G01H9/004 , G01L11/025 , G01L23/16 , G01P15/093 , G01V1/181
摘要： An element that is sensitive to a pressure or acceleration signal comprises an optical element capable of changing its index of refraction and/or path length in response to a time varying pressure or in response to acceleration and a pliant mounting member supporting the optical element. The mounting member changes its geometrical configuration in response to the time varying pressure or acceleration. Some embodiments of the invention use a mechanical amplifier to achieve the needed sensitivity.
摘要翻译： 对压力或加速度信号敏感的元件包括能够响应于时变压力或响应于加速度而改变其折射率和/或路径长度的光学元件以及支撑光学元件的柔性安装构件。 响应时变压力或加速度，安装构件改变其几何构型。 本发明的一些实施例使用机械放大器来实现所需的灵敏度。
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8.发明申请METHOD FOR DETERMINING THE EFFECTIVENESS OF STERILIZATION AND/OR DISINFECTION PROCESS 审中-公开确定灭菌和/或消毒过程有效性的方法公开(公告)号：US20120315627A1
公开(公告)日：2012-12-13
申请号：US13561539
申请日：2012-07-30
CPC分类号： G01N21/763 , C12Q1/04
摘要： A method for determining the effectiveness of a sterilization and/or disinfection process is disclosed.
摘要翻译： 公开了一种确定灭菌和/或消毒过程有效性的方法。
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公开(公告)号：US07502391B2
公开(公告)日：2009-03-10
申请号：US10566222
申请日：2004-07-28
申请人： Malcolm Paul Varnham , Mikhail Nicholaos Zervas , David Neil Payne , Lars Johan Albinsson Nilsson
发明人： Malcolm Paul Varnham , Mikhail Nicholaos Zervas , David Neil Payne , Lars Johan Albinsson Nilsson
CPC分类号： H01S3/10092 , H01S3/06729 , H01S3/06754 , H01S3/094007 , H01S3/09403 , H01S3/09408 , H01S3/0941 , H01S3/1608 , H01S3/1618
摘要： Apparatus for providing optical radiation includes a pump source and at least one first amplifying waveguide. The first amplifying waveguide emits optical radiation in excess of 1400 nm when pumped by the pump source. In one embodiment, the pump source can include a plurality of laser diodes and a plurality of second amplifying waveguides. In this arrangement the first amplifying waveguide is pumped by the second amplifying waveguides, the second amplifying waveguides are pumped by the laser diodes, and the second amplifying waveguides are configured to improve the beam quality of radiation emitted by the laser diodes.
摘要翻译： 用于提供光辐射的装置包括泵浦源和至少一个第一放大波导。 当泵浦泵浦时，第一放大波导发射超过1400nm的光辐射。 在一个实施例中，泵浦源可以包括多个激光二极管和多个第二放大波导。 在这种布置中，第一放大波导由第二放大波导泵浦，第二放大波导由激光二极管泵浦，第二放大波导被配置成提高由激光二极管发射的辐射的光束质量。
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公开(公告)号：US06363034B1
公开(公告)日：2002-03-26
申请号：US09493874
申请日：2000-01-28
申请人： Malcolm Paul Varnham
发明人： Malcolm Paul Varnham
IPC分类号： H04R144
摘要： An apparatus for phase angle demodulation. The apparatus functions as a highly-linear angle-modulation demodulator and is particularly useful for seismic streamers comprising very-large arrays of optical hydrophones. The apparatus includes a demodulator and a processor in which the demodulator contains a signal input and a reference input. The apparatus is configured such that a phase modulated signal having a carrier frequency is connected to the signal input, and a reference signal is connected to the reference input. A difference frequency is defined as the non-zero difference in frequency between the reference signal frequency and the carrier frequency. The processor filters the output from the demodulator in order to separate the phase demodulated signal from the difference frequency. The phase modulated signal can be any form of angle modulated signal such as a Frequency Modulated (“FM”) signal, a Phase Modulated (“PM”) signal, or a Phase Generated Carrier (“PGC”) signal. When demodulating a phase-generated calTier signal, it can be advantageous to combine the output from more than one demodulator each driven by a reference signal with different frequencies from each other. At least one of these reference frequencies is not harmonically related to the fundamental carrier frequency of the phase modulated signal.
摘要翻译： 一种相位角解调装置。 该装置用作高度线性的角度调制解调器，并且对于包括非常大的光学水听器阵列的地震拖缆特别有用。 该装置包括解调器和处理器，其中解调器包含信号输入和参考输入。 该装置被配置为使得具有载波频率的相位调制信号连接到信号输入，并且参考信号连接到参考输入。 差频被定义为参考信号频率和载波频率之间的非零差频。 处理器对来自解调器的输出进行滤波，以将相位解调信号与差分频率分离。相位调制信号可以是任何形式的角度调制信号，例如调频（“FM”）信号，相位调制（“ PM“）信号或相位产生载波（”PGC“）信号。 当解调产生相位的calTier信号时，组合来自多个解调器的输出可能是有利的，每个解调器由参考信号彼此驱动，频率不同。 这些参考频率中的至少一个与相位调制信号的基本载波频率没有谐波相关。
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