公开(公告)号：US20070267220A1

公开(公告)日：2007-11-22

申请号：US11493897

申请日：2006-07-27

申请人： Kiran Ramanlal Magiawala ,  Jeffrey Lee Sollee ,  Michael Gordon Wickham ,  Steven Wayne Fornaca

发明人： Kiran Ramanlal Magiawala ,  Jeffrey Lee Sollee ,  Michael Gordon Wickham ,  Steven Wayne Fornaca

IPC分类号： E21B7/14

CPC分类号： E21B36/006 ,  E21B7/14 ,  E21B2043/0115

摘要： A method and apparatus for extracting methane gas from methane hydrate. The method includes heating the methane hydrate with a laser apparatus. The laser apparatus includes a diode laser or a solid state laser that is pumped with a diode laser. The laser is guided to a working end of a tool with a fiber optic bundle. The tool is guided to heat the methane hydrate with the laser, which emanates from a beam expander at the working end of the tool. The tool can be modified for removing obstructions of methane hydrate in pipelines. Also, the tool can be modified for extracting methane from mined methane hydrate, which is in a container. The characteristics of diode lasers or diode-pumped solid state lasers such as efficiency, size, nature of operation, environmental impact and durability, make methane gas extraction from methane hydrate economically feasible.

摘要翻译： 一种从甲烷水合物中提取甲烷气体的方法和装置。 该方法包括用激光装置加热甲烷水合物。 激光装置包括用二极管激光器泵浦的二极管激光器或固态激光器。 激光被引导到具有光纤束的工具的工作端。 引导工具用激光器加热甲烷水合物，激光器从工具的工作端的扩束器发出。 该工具可以修改，以消除管道中甲烷水合物的障碍物。 此外，该工具可以被修改以从在容器中的开采的甲烷水合物中提取甲烷。 二极管激光器或二极管泵浦固体激光器的特性，如效率，尺寸，操作性质，环境影响和耐久性，使甲烷气体从甲烷水合物中提取经济可行。

公开(公告)号：US07502395B2

公开(公告)日：2009-03-10

申请号：US11500661

申请日：2006-08-08

申请人： Eric Chiu-Tat Cheng ,  Robert Rex Rice ,  Michael Gordon Wickham ,  Mark Ernest Weber

发明人： Eric Chiu-Tat Cheng ,  Robert Rex Rice ,  Michael Gordon Wickham ,  Mark Ernest Weber

IPC分类号： G01B9/02 ,  H01S3/13

CPC分类号： H01S3/2383 ,  G01J9/00 ,  H01S3/0085 ,  H01S3/06754 ,  H01S3/09415 ,  H01S3/10015 ,  H01S3/10053

摘要： A pulsed coherent fiber array laser system that includes a beam generating sub-system that provides a signal pulse beam having pulses of the desired duration that is split into several fiber channels. Optical leakage between the pulses in each split beam is measured and locked to a reference beam by a phase sensing circuit and phase adjusters so that the phase of each fiber pulsed beam is aligned with the phase of the reference beam. A pulse clipper or filter is employed to remove the pulses in the fiber beams so that they do not saturate the phase sensing circuit. The beam generating sub-system can employ any suitable combination of devices to generate the signal beam and the reference beam, including continuous wave master oscillators, amplitude modulators, frequency shifters, injection seed oscillators, Q-switched lasers, reference oscillators, frequency lockers, wavelength division multiplexers, time gated switches, etc.

摘要翻译： 一种脉冲相干光纤阵列激光系统，其包括光束产生子系统，其提供具有被分割成若干光纤通道的期望持续时间的脉冲的信号脉冲光束。 通过相位检测电路和相位调整器测量每个分束中的脉冲之间的光学泄漏并将其锁定到参考光束，使得每个光纤脉冲光束的相位与参考光束的相位对准。 使用脉冲削波器或滤波器来去除光纤束中的脉冲，使得它们不会使相位感测电路饱和。 光束产生子系统可以采用任何合适的设备组合来产生信号光束和参考光束，包括连续波主振荡器，幅度调制器，移相器，注入种子振荡器，Q开关激光器，参考振荡器，频率锁存器， 波分复用器，时间门控开关等

公开(公告)号：US06317257B1

公开(公告)日：2001-11-13

申请号：US09552813

申请日：2000-04-20

申请人： Eric Lawrence Upton ,  Michael Gordon Wickham

发明人： Eric Lawrence Upton ,  Michael Gordon Wickham

IPC分类号： H01S300

CPC分类号： H01S3/2383 ,  H01S3/10 ,  H01S3/102 ,  H01S3/1301 ,  H01S3/1305

摘要： A technique for polarization locking optical outputs of N optical amplifiers to a reference polarization output, N being an integer, includes providing N optical loops and a reference optical loop. Each of the N optical loops includes a polarization controller connected to an optical amplifier. The reference optical loop includes a reference polarization controller and a linear optical polarizer. An optical output from a laser source is fed to all of the polarization controllers. A portion of an optical output of the reference polarization controller is fed back to an input of the reference polarization controller via the linear polarizer. A portion of the optical output of the reference polarization controller is fed to an optical input of each of N beam splitters and an optical output of each amplifier of the N loops is fed to an optical input of a respective one of the N beam splitters. A substantial portion of the optical output of each amplifier is output by its respective beam splitter. An interference optical output of the two optical inputs fed into each of the N beam splitters is fed back to a respective one of the polarization controllers of the N loops such that the N optical loops are polarization locked with the reference optical loop.

摘要翻译： 将N个光放大器的光输出偏振锁定到参考极化输出（N为整数）的技术包括提供N个光环路和参考光环路。 N个光环路中的每一个包括连接到光放大器的偏振控制器。 参考光学环路包括参考偏振控制器和线性光学偏振器。 来自激光源的光输出被馈送到所有偏振控制器。 参考偏振控制器的光输出的一部分经由线性偏振器反馈到参考偏振控制器的输入端。 参考偏振控制器的光输出的一部分被馈送到N个分束器中的每一个的光输入，并且N个环的每个放大器的光输出被馈送到N个分束器中的相应一个的光输入。 每个放大器的大部分光输出由其各自的分束器输出。 馈送到N个分束器中的每一个的两个光输入的干涉光输出被反馈到N个回路的相应的一个偏振控制器，使得N个光环路与基准光回路偏振锁定。

公开(公告)号：US07440174B2

公开(公告)日：2008-10-21

申请号：US11361352

申请日：2006-02-24

申请人： Robert Rex Rice ,  Michael Gordon Wickham ,  Joshua Elliott Rothenberg

发明人： Robert Rex Rice ,  Michael Gordon Wickham ,  Joshua Elliott Rothenberg

IPC分类号： H01S3/00 ,  H01S4/00 ,  G02B5/18 ,  G01B9/02

CPC分类号： H01S3/06754 ,  H01S3/005 ,  H01S3/10007 ,  H01S3/1307 ,  H01S3/2383

摘要： An optical beam combiner and a related method for its operation, in which multiple coherent input beams are directed onto a diffractive optical element (DOE) along directions corresponding to diffraction orders of the DOE, such that the DOE generates a single output beam in a direction corresponding to a desired diffraction order, and suppresses outputs in directions corresponding to unwanted diffraction orders. The phases of the input beams are actively controlled to ensure and maintain the condition that only a single diffraction mode is present in the output of the DOE.

摘要翻译： 一种用于其操作的光束组合器和相关方法，其中多个相干输入光束沿着与DOE的衍射级相对应的方向被引导到衍射光学元件（DOE）上，使得DOE沿着方向产生单个输出光束 对应于期望的衍射级，并且抑制与不想要的衍射级相对应的方向的输出。 输入光束的相位被主动地控制，以确保和保持在DOE的输出中仅存在单个衍射模式的条件。