公开(公告)号：US09085050B1

公开(公告)日：2015-07-21

申请号：US14214112

申请日：2014-03-14

Applicant: Mark S. Zediker ,  Robert R. Rice ,  William F. Krupke ,  Brian O. Faircloth

Inventor： Mark S. Zediker ,  Robert R. Rice ,  William F. Krupke ,  Brian O. Faircloth

IPC: E21B7/14 ,  B23K26/38 ,  E21B29/02 ,  E21B41/00 ,  E21B43/11

CPC classification number: E21B29/00 ,  B23K26/146 ,  E21B29/02 ,  E21B33/03 ,  E21B41/00 ,  E21B43/11

Abstract: There are provided using deuterium oxide as a media for transmitting high power lasers to perform laser operations, such as cutting, boring and drilling, a target material. High power laser beams are transmitted through a deuterium oxide beam path to a target material, including material in a pressure containment vessel.

Abstract translation: 提供了使用氧化氘作为用于传输大功率激光器以进行激光操作的介质，例如切割，钻孔和钻孔，目标材料。 大功率激光束通过氘氧化物光束路径传输到目标材料，包括在压力容器中的材料。

公开(公告)号：US09069117B1

公开(公告)日：2015-06-30

申请号：US13446525

申请日：2012-04-13

Applicant: John M. Ballato ,  Robert R. Rice

Inventor： John M. Ballato ,  Robert R. Rice

IPC: G02B6/02 ,  G02B6/12

CPC classification number: G02B6/02033 ,  C03C13/045 ,  G02B6/02 ,  G02B2006/12035 ,  H01S3/06716 ,  H01S3/302

Abstract: Disclosed is an optical fiber formed from a preform that includes a clad material and a core material. The clad material includes an oxide glass and the core material includes as a primary component a semiconductor material that melts at a temperature below where the cladding glass draws into fiber. In addition, the core material includes a scavenger for oxide precipitates that can precipitate into the core from the adjacent clad material during the fiber formation process. During formation, the scavenger reduces oxide precipitate to form the core primary component, or a phase compatible with it, and volatile products. The volatile products evolve out of the system. The primary material of the core can melt during the fiber formation process and crystallize upon cooling leaving the formed optical fiber with a crystalline core and little or no impurities due to precipitation of oxide into the core.

Abstract translation: 公开了一种由包括包覆材料和芯材的预成型体形成的光纤。 包层材料包括氧化物玻璃，并且芯材料包括作为主要组分的半导体材料，其在低于包层玻璃拉制成纤维的温度下熔化。 此外，芯材料包括用于氧化物沉淀物的清除剂，其可以在纤维形成过程期间从相邻包覆材料沉淀到芯中。 在形成期间，清除剂减少氧化物沉淀物以形成核心主要组分，或与其相容的相和挥发性产物。 挥发性产品从系统中演变而来。 芯的主要材料可以在纤维形成过程中熔化并在冷却时结晶，离开形成的光纤与晶核，并且很少或没有杂质，因为氧化物沉淀到芯中。

公开(公告)号：US20110103756A1

公开(公告)日：2011-05-05

申请号：US12989326

申请日：2009-02-27

Applicant: Robert R. Rice ,  John Ballato

Inventor： Robert R. Rice ,  John Ballato

IPC: G02B6/02

CPC classification number: C03B37/026 ,  C03B37/01205 ,  C03B37/023 ,  C03B37/0235 ,  C03B2203/12 ,  C30B13/00 ,  C30B29/06 ,  C30B29/08 ,  C30B29/40 ,  C30B29/46 ,  C30B29/60 ,  G02B6/02 ,  G02B6/024 ,  H01S3/094007 ,  H01S3/302

Abstract: One embodiment of the invention includes a method for forming an optical fiber. The method comprises providing a preform having a core material and a glass cladding material surrounding the core material. The method also comprises drawing the preform at a temperature that is greater than a melting temperature of the core material to form a drawn fiber. The method further comprises cooling the drawn fiber to form the optical fiber having a crystalline fiber core and a cladding that surrounds the crystalline fiber core and extends axially along a length of the crystalline fiber core.

Abstract translation: 本发明的一个实施例包括一种形成光纤的方法。 该方法包括提供具有芯材料的预成型件和围绕芯材料的玻璃包覆材料。 该方法还包括在大于芯材料的熔融温度的温度下拉伸预成型件以形成拉伸纤维。 该方法还包括冷却拉伸的纤维以形成具有结晶纤维芯和包层的光纤，该包层围绕结晶纤维芯并且沿着结晶纤维芯的长度轴向延伸。

公开(公告)号：US20090185176A1

公开(公告)日：2009-07-23

申请号：US12009935

申请日：2008-01-23

Applicant: Peter M. Livingston ,  Robert R. Rice

Inventor： Peter M. Livingston ,  Robert R. Rice

IPC: G01N21/00

CPC classification number: H01S3/2383 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/2316

Abstract: A high-power laser system includes a laser master oscillator, a plurality of fiber laser amplifiers producing intermediate output beamlets, a combiner for combining the intermediate beamlets into a combined output beam, and a piston error controller for minimizing errors related to beam combination that may degrade the quality of the combined output beam. A piston error controller processes a sample of the combined output beam using a Diffractive Optical Element to isolate a signal representing the total piston error of the combined beam. The controller uses amplitude modulation based on Hadamard code words to tag each non-reference intermediate beamlet with a unique code sequence orthogonal to those used for the other beamlets. For each intermediate beamlet, the associated piston error contribution is recovered using a Hadamard decoder. A very small phase dither is also introduced to allow the sign or direction of the piston error to be recovered. The decoded piston error contribution is processed by a cascaded product detector unit to derive a piston error control signal, which is provided to a phase modulator to thereby adjust the phase of a beamlet and minimize the piston error contributed thereby.

Abstract translation: 高功率激光系统包括激光主振荡器，产生中间输出子束的多个光纤激光放大器，用于将中间子束组合成组合输出光束的组合器以及用于最小化与光束组合有关的误差的活塞误差控制器， 降低组合输出光束的质量。 活塞误差控制器使用衍射光学元件处理组合输出光束的样本，以隔离表示组合光束的总活塞误差的信号。 控制器使用基于Hadamard码字的幅度调制，以与用于其他子束的那些正交的唯一代码序列来标记每个非参考中间子波束。 对于每个中间子束，使用Hadamard解码器恢复相关的活塞误差贡献。 还引入了非常小的相位抖动以允许恢复活塞误差的符号或方向。 解码的活塞误差贡献由级联产品检测器单元处理以得到活塞误差控制信号，其被提供给相位调制器，从而调节子束的相位并使由此贡献的活塞误差最小化。

公开(公告)号：US07468832B2

公开(公告)日：2008-12-23

申请号：US11543677

申请日：2006-10-05

Applicant: Joshua E. Rothenberg ,  Robert R. Rice ,  Michael G. Wickham ,  Hiroshi Komine

Inventor： Joshua E. Rothenberg ,  Robert R. Rice ,  Michael G. Wickham ,  Hiroshi Komine

IPC: H04B10/17 ,  G01B9/00

CPC classification number: H01S3/2383 ,  B23K26/0604 ,  B23K26/0613 ,  H01S3/06754 ,  H01S3/10007

Abstract: A system and method for combining plural low power light beams into a coherent high power light beam by means of a diffractive optical element operating as both a beam combiner and beam sampler. An oscillation source transmits a master signal that is split into plural beams propagating at a common wavelength. Each beam is phase locked by a corresponding phase modulator according to a phase correction signal. The beams are directed through a fiber array to the diffractive optical element to allow efficient coherent combination of the beams at a desired diffraction order. The diffractive optical element includes a periodic sampling grating for diffracting a low power sample beam representative of the combined beam. A phase detection stage detects phases of constituent beams in the sample beam from which the phase correction signals are derived and fed back to the phase modulators. The diffractive optical element may be further modified to collimate beams diverging from the fiber array and to focus the sample beam onto a phase detector.

公开(公告)号：US07339727B1

公开(公告)日：2008-03-04

申请号：US11543613

申请日：2006-10-05

Applicant: Joshua E. Rothenberg ,  Robert R. Rice ,  Sami A. Shakir ,  Michael G. Wickham

Inventor： Joshua E. Rothenberg ,  Robert R. Rice ,  Sami A. Shakir ,  Michael G. Wickham

IPC: H01S3/00

CPC classification number: H01S3/06791 ,  H01S3/0805 ,  H01S3/0812 ,  H01S3/10053 ,  H01S3/2383

Abstract: A system and method for combining plural low power light beams into a coherent high power light beam. Optical amplifiers transmit a plurality of light beams propagating at a common wavelength through an array of optical fiber emitters. Each constituent beam is emitted from the array at a different propagation angle, collimated, and incident on a diffractive optical element operating as a beam combiner such that incident beams when properly phased and located are combined into a coherent beam at a desired diffraction order. A beam splitter or a periodic sampling grating on the diffractive optical element directs a low power sample beam to a spatial filter passing resonant mode output back to the optical amplifiers in a ring laser configuration thereby passively synchronizing phases of the constituent beams to maximize combination efficiency of the coherent beam.

Abstract translation: 一种用于将多个低功率光束组合成相干高功率光束的系统和方法。 光放大器通过光纤发射器阵列发射以公共波长传播的多个光束。 每个构成光束以阵列的不同传播角发射，准直并入射在作为光束组合器工作的衍射光学元件上，使得入射光束在适当地定相并定位时，以期望的衍射级组合成相干光束。 衍射光学元件上的分束器或周期性采样光栅将低功率采样光束引导到以环形激光器配置将谐振模式输出回到光放大器的空间滤波器，从而被动地同步构成光束的相位，以最大化组合效率 相干光束。

公开(公告)号：US07221499B2

公开(公告)日：2007-05-22

申请号：US11254933

申请日：2005-10-19

Applicant: Robert R. Rice ,  Sami A. Shakir

Inventor： Robert R. Rice ,  Sami A. Shakir

IPC: H01S3/00

CPC classification number: H01S3/06754 ,  G02B6/4249 ,  H01S3/1301 ,  H01S3/2383

Abstract: An optical fiber amplifier array and related method, in which high beam quality is achieved by varying the frequency of an input signal applied to all of the fiber amplifiers, to locate a frequency at which the amplifiers produce nearly coherent optical outputs. In spite of statistical variations in length and other factors among the fibers, there are frequencies at which the amplifiers produce nearly coherent outputs. In the control system of the invention, the input signal frequency is scanned across a selected narrow range and the beam quality is monitored by measuring on-axis far-field output beam intensity. The frequency is scanned until the beam intensity exceeds a selected threshold, and then the frequency is held constant until the beam intensity falls below a second selected threshold.

Abstract translation: 一种光纤放大器阵列和相关方法，其中通过改变施加到所有光纤放大器的输入信号的频率来实现远光质量，以定位放大器产生近似相干光输出的频率。 尽管纤维之间的长度和其他因素的统计变化，放大器产生几乎相干输出的频率。 在本发明的控制系统中，输入信号频率在选定的窄范围内扫描，并且通过测量轴上远场输出光束强度来监视光束质量。 扫描频率直到光束强度超过所选择的阈值，然后频率保持恒定，直到光束强度低于第二选定阈值。

公开(公告)号：US06600946B1

公开(公告)日：2003-07-29

申请号：US09637961

申请日：2000-08-11

Applicant: Robert R. Rice

Inventor： Robert R. Rice

IPC: A61B600

CPC classification number: A61B5/0064 ,  A61B5/0059 ,  A61B5/441

Abstract: Dermal hydration is determined in a target region of a human subject by determining a relationship between first and second measurements. The first measurement is a measurement of a first type of electromagnetic radiation that has been reflected from the target region, the second measurement is a measurement of a second type of electromagnetic radiation that has been reflected from the target region, and the second type of electromagnetic radiation is absorbed by liquid, namely water or perspiration, to a greater degree than the first type of electromagnetic radiation is absorbed by the liquid. The electromagnetic radiation that is reflected from the region and measured is initially transmitted to the region from a remote location, and the transmitted electromagnetic radiation is not visible to a naked human eye. An examination being carried out in accordance with the present invention can be carried out while the region is moving, by tracking the region. As a result, examinations carried out in accordance with the present invention can advantageously be relatively noninvasive, and the subject being examined need not even be aware of the examination.

Abstract translation: 通过确定第一和第二测量之间的关系，在人受试者的目标区域中确定真皮水合。 第一测量是从目标区域反射的第一类型的电磁辐射的测量，第二测量是已经从目标区域反射的第二类型的电磁辐射的测量，第二类型的电磁 辐射被液体吸收，即水或排汗，比第一类电磁辐射被液体吸收的程度更大。 从该区域反射并测量的电磁辐射最初从远程位置传输到该区域，并且透射的电磁辐射对于裸眼人眼是不可见的。 通过跟踪该区域，可以在区域移动的同时进行根据本发明的检查。 结果，根据本发明进行的检查可以有利地是相对无创的，并且被检查的对象甚至不需要知道检查。

公开(公告)号：US5847817A

公开(公告)日：1998-12-08

申请号：US783009

申请日：1997-01-14

Applicant: Mark S. Zediker ,  Robert R. Rice ,  Jack H. Hollister

Inventor： Mark S. Zediker ,  Robert R. Rice ,  Jack H. Hollister

IPC: G01S7/493 ,  G01S17/32 ,  G01S17/58 ,  H01S3/00

CPC classification number: G01S17/58 ,  G01S17/32 ,  G01S7/4911 ,  G01S7/4917 ,  G01S7/493 ,  G01S7/497

Abstract: A method for compensating a reference signal used in a coherent receiver of a micro-doppler sensor having a transmitter includes the steps for: (a) repeatedly measuring phase differences between a signal emitted by the transmitter a first time and a previous signal emitted at a previous time so as to produce a plurality of phase error signals; (b) accumulating the phase error signals over a propagation time between the transmitter and the coherent receiver so as to produce a cumulative phase error signal; and (c) modulating a signal produced by the transmitter at the end of the propagation period so as to generate a compensated reference signal having a phase characteristic substantially identical to the signal produced by the transmitter at the beginning of the propagation period. A phase error or noise compensator, which can form part of a micro-doppler ladar system, is also described.

Abstract translation: 一种用于补偿在具有发射机的微多普勒传感器的相干接收机中使用的参考信号的方法，包括以下步骤：（a）重复地测量由发射机发射的信号第一次与先前发射的信号之间的相位差 以产生多个相位误差信号; （b）在发射机和相干接收机之间的传播时间累积相位误差信号，以产生累积相位误差信号; 以及（c）在传播周期结束时调制由发射机产生的信号，以产生具有与传播周期开始时由发射机产生的信号基本相同的相位特性的补偿参考信号。 还描述了可以形成微多普勒系统的一部分的相位误差或噪声补偿器。

公开(公告)号：US5694408A

公开(公告)日：1997-12-02

申请号：US611474

申请日：1996-03-05

Applicant: Eric H. Bott ,  Robert R. Rice ,  Mark S. Zediker

Inventor： Eric H. Bott ,  Robert R. Rice ,  Mark S. Zediker

IPC: G02B27/10 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/23 ,  H01S3/30

CPC classification number: H01S3/2383 ,  G02F2203/18 ,  H01S3/067 ,  H01S3/06754

Abstract: The fiber optic laser system and associated lasing method amplifies and divides a primary laser signal into a plurality of secondary laser signals. The fiber optic laser system includes a distribution means, such as a distribution module, for dividing a primary laser signal, generated by a master oscillator into a number of secondary laser signals. The distribution module can include amplification means, such as an optical fiber amplifier, for amplifying the primary laser signal and a signal power splitter for dividing the amplified primary laser signal into a number of secondary laser signals. The secondary laser signals can then be further amplified, such as by a power amplification module including another optical fiber amplifier. The secondary laser signals can be recombined to produce a laser output having a power level greater than the predetermined power level of the primary laser signal. During the process of combining the secondary laser signals, the secondary laser signals can be collimated and the relative phases of the secondary laser signals can be controllably modulated such that the resulting laser output has a predetermined phase profile and relatively high beam qualities.

Abstract translation: 光纤激光系统和相关联的激光方法将主激光信号放大并分割成多个次级激光信号。 光纤激光系统包括分配装置，例如分配模块，用于将由主振荡器产生的初级激光信号分成多个次级激光信号。 分配模块可以包括用于放大初级激光信号的放大装置，例如光纤放大器，以及用于将放大的主激光信号分成多个次级激光信号的信号功率分配器。 然后可以例如通过包括另一光纤放大器的功率放大模块来进一步放大次级激光信号。 次级激光信号可以被重新组合以产生具有大于主激光信号的预定功率电平的功率电平的激光输出。 在组合次级激光信号的过程中，辅助激光信号可以被准直，并且次级激光信号的相对相位可以被可控地调制，使得所得到的激光输出具有预定的相位轮廓和相对较高的光束质量。