公开(公告)号：US07388971B2

公开(公告)日：2008-06-17

申请号：US10692999

申请日：2003-10-23

申请人： Robert R. Rice ,  Barry Dunbridge

发明人： Robert R. Rice ,  Barry Dunbridge

IPC分类号： G06K9/00 ,  G06K9/36

CPC分类号： G06K9/00315 ,  A61B5/16 ,  A61B5/164 ,  A61B5/165 ,  G06T7/20

摘要： A method and related apparatus for sensing selected emotions or physical conditions in a human subject. The technique employs a two-dimensional camera to generate a facial image of a human subject. Then, an image processing module scans the image to locate the face position and extent, and then scans for selected critical areas of the face. The size and activity of the selected critical areas are monitored by comparing sequential image frames of the subject's face, and the areas are tracked to compensate for possible movements of the subject. The sensed parameters of the selected critical areas are compared with those stored in a database that associates activities of the critical areas with various emotional and physical conditions of the subject, and a report or assessment of the subject is generated.

摘要翻译： 一种用于感测人类受试者中选择的情绪或身体状况的方法和相关装置。 该技术使用二维相机来生成人类对象的面部图像。 然后，图像处理模块扫描图像以定位脸部位置和面积，然后扫描脸部的选定关键区域。 通过比较受试者脸部的连续图像帧来监视所选关键区域的大小和活动，并跟踪区域以补偿受试者的可能运动。 将所选择的关键区域的感测参数与存储在数据库中的关键区域的活动与主体的各种情绪和身体状况相关联的参数进行比较，并且生成对象的报告或评估。

公开(公告)号：US20080037028A1

公开(公告)日：2008-02-14

申请号：US11500661

申请日：2006-08-08

申请人： Eric C. T. Cheung ,  Robert R. Rice ,  Michael G. Wickham ,  Mark E. Weber

发明人： Eric C. T. Cheung ,  Robert R. Rice ,  Michael G. Wickham ,  Mark E. Weber

IPC分类号： G01B9/02

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：US07065110B2

公开(公告)日：2006-06-20

申请号：US10761723

申请日：2004-01-20

申请人： Robert R. Rice ,  Michael G. Wickham ,  Eric C. T. Cheung ,  Hiroshi Komine ,  Joshua E. Rothenberg

发明人： Robert R. Rice ,  Michael G. Wickham ,  Eric C. T. Cheung ,  Hiroshi Komine ,  Joshua E. Rothenberg

IPC分类号： H01S3/10

CPC分类号： H01S3/1083 ,  G02F1/3534 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/10023 ,  H01S3/2383

摘要： A laser array architecture scalable to very high powers by fiber amplifiers, but in which the output wavelength is selectable, and not restricted by the wavelengths usually inherent in the choice of fiber materials. A pump beam at a first frequency is amplified in the fiber amplifier array and is mixed with a secondary beam at a second frequency to yield a frequency difference signal from each of an array of optical parametric amplifiers. A phase detection and correction system maintains the array of outputs from the amplifiers in phase coherency, resulting in a high power output at the desired wavelength. A degenerate form of the architecture is disclosed in an alternate embodiment, and a third embodiment employs dual wavelength fiber amplifiers to obtain an output at a desired difference frequency.

摘要翻译： 激光阵列架构由光纤放大器可扩展到非常高的功率，但其中输出波长是可选择的，而不受通常选择光纤材料固有的波长的限制。 第一频率的泵浦光束在光纤放大器阵列中被放大，并且以第二频率与次级光束混合，以产生来自光学参量放大器阵列中的每一个的频差信号。 相位检测和校正系统保持来自放大器的输出阵列的相位一致性，导致在所需波长处的高功率输出。 在替代实施例中公开了该架构的简并形式，并且第三实施例采用双波长光纤放大器以期望的差频获得输出。

公开(公告)号：US06900890B1

公开(公告)日：2005-05-31

申请号：US10716252

申请日：2003-11-17

申请人： Robert R. Rice

发明人： Robert R. Rice

IPC分类号： G01J3/44 ,  G01N21/65

CPC分类号： G01J3/44 ,  G01N21/65 ,  G01N2021/1795 ,  G01N2021/6484 ,  G01N2021/655

摘要： Methods and apparatus are provided for detecting a target substance in an atmospheric target area. The target area is illuminated with a laser beam to produce back-scatter light from substances within the target area. The back-scatter light is combined with a sample of the target substance within a hollow core fiber that has been pumped with a laser spectrum identical to the illuminating bean. If a back-scatter spectrum matches the pumped sample in the hollow core fiber, stimulated Raman scattering emissions can occur, which provide optical gain for the matching spectrum. A detector analyzes the amplified matching spectrum to identify the target substance. The disclosed apparatus may be expanded to detect multiple target substances simultaneously by using hollow core fibers containing different target samples.

摘要翻译： 提供了用于检测大气目标区域中的目标物质的方法和装置。 目标区域用激光束照射以产生来自目标区域内的物质的背散射光。 背散射光与目标物质的样品在已经用与照射豆类相同的激光光谱泵浦的中空芯纤维中组合。 如果背散射光谱与中空纤芯光纤中的泵浦样品匹配，则可能发生受激拉曼散射发射，这为匹配光谱提供光学增益。 检测器分析放大的匹配光谱以鉴定目标物质。 可以扩展所公开的装置，通过使用含有不同目标样品的中空芯纤维同时检测多个目标物质。

公开(公告)号：US06813069B2

公开(公告)日：2004-11-02

申请号：US10350544

申请日：2003-01-24

申请人： Robert R. Rice ,  Neil F. Ruggieri ,  Richard J. Tansey

发明人： Robert R. Rice ,  Neil F. Ruggieri ,  Richard J. Tansey

IPC分类号： H01S300

CPC分类号： H01S3/2383 ,  H01S3/06754

摘要： A fiber optic phased array, as well as associated methods and apparatus for controllably adjusting the frequency of the optical signals emitted by a fiber optic phased array, are provided that permit wide band phase control and may be implemented utilizing conventional analog electronics. In this regard, the method and apparatus can independently control the phase of the optical signals propagating through each fiber optic amplifier of the fiber optic phased array, even as large optical phase disturbances occur. As such, the control method and apparatus permit a fiber optic phased array to generate a flat phase front that, in turn, can provide a diffraction limited output laser beam. Alternatively, the control method and apparatus may be designed such that the output signals emitted by an array of fiber optic amplifiers has any other desired phase front, such as to compensate for atmospheric perturbations or the like.

摘要翻译： 提供了一种光纤相位阵列，以及用于可控地调节由光纤相控阵列发射的光信号的频率的相关方法和装置，其允许宽带相位控制，并且可以使用传统的模拟电子装置来实现。 在这方面，该方法和装置可以独立地控制通过光纤相控阵列的每个光纤放大器传播的光信号的相位，即使出现大的光相位干扰。 因此，控制方法和装置允许光纤相控阵列产生平面相位前沿，这又可以提供衍射限制输出激光束。 或者，控制方法和装置可以被设计成使得由光纤放大器阵列发射的输出信号具有任何其它期望的相位前沿，例如补偿大气扰动等。

公开(公告)号：US06678288B2

公开(公告)日：2004-01-13

申请号：US10166272

申请日：2002-06-10

申请人： Robert R. Rice

发明人： Robert R. Rice

IPC分类号： H01S330

CPC分类号： H01S3/2383 ,  H01S3/005 ,  H01S3/067 ,  H01S3/06754 ,  H01S3/105 ,  H01S3/1301

摘要： A multi-aperture fiber laser system that includes a fiber amplifier laser engine having a tunable master oscillator, a wavelength selective beam router optically connected to the laser engine, and a plurality of beam directors optically connected to the wavelength selective beam router. The tunable master oscillator outputs a first optical signal selectively tuned to at least one specific wavelength. The wavelength selective beam router receives a plurality of second optical signals that have the same at least one wavelength of the first optical signal. The wavelength selective beam router then routes each second optical signal to one of the beam director assemblies based the wavelength of the second optical signals. Thus, the multi-aperture fiber laser system enables a single high power fiber amplifier laser engine to supply laser power to more than one beam director in a highly flexible and efficient manner.

摘要翻译： 一种多孔径光纤激光系统，其包括具有可调谐主振荡器的光纤放大器激光引擎，与激光引擎光学连接的波长选择光束路由器，以及与波长选择波束路由器光学连接的多个光束指向器。 可调谐主振荡器输出选择性地调谐到至少一个特定波长的第一光信号。 波长选择波束路由器接收具有与第一光信号相同的至少一个波长的多个第二光信号。 然后，波长选择光路由器基于第二光信号的波长将每个第二光信号路由到一个光束导向器组件。 因此，多孔径光纤激光系统使得单个大功率光纤放大器激光引擎能够以高度灵活和高效的方式向多于一个的光束导向器提供激光功率。

公开(公告)号：US06363087B1

公开(公告)日：2002-03-26

申请号：US09488115

申请日：2000-01-20

申请人： Robert R. Rice

发明人： Robert R. Rice

IPC分类号： H01S330

CPC分类号： H01S3/302 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/094007

摘要： A multimode Raman fiber amplifier and method for generating high levels of laser output power from arbitrary pump laser wavelengths using Stimulated Raman Scattering (SRS) in optical fibers of a dual clad design. The optical fibers are amplified in such a manner that facilitates high power, improves brightness conversion, increases conversion efficiency, effectuates lower laser pump brightness, and increases output beam quality. The invention includes a signal core which can support an arbitrary multimode signal from a pump laser, an SRS pump core, and low index outer cladding. The refractive indices of the aforementioned are designed to propagate SRS along the length of the optical fiber.

摘要翻译： 一种多模拉曼光纤放大器和方法，用于在双包层设计的光纤中使用激励拉曼散射（SRS）从任意泵浦激光波长产生高水平的激光输出功率。 光纤以这样的方式被放大，从而便于高功率，改善亮度转换，提高转换效率，实现较低的激光泵亮度，并增加输出光束质量。 本发明包括可以支持来自泵激光器，SRS泵芯和低折射率外包层的任意多模信号的信号芯。 上述的折射率被设计成沿着光纤的长度传播SRS。

公开(公告)号：US5946130A

公开(公告)日：1999-08-31

申请号：US949326

申请日：1997-10-03

申请人： Robert R. Rice

发明人： Robert R. Rice

IPC分类号： G02B6/42 ,  H01S3/067 ,  H01S3/23 ,  H01S3/00 ,  G02B5/30 ,  H01S3/30

CPC分类号： G02B6/4249 ,  H01S3/2383 ,  G02B6/425 ,  H01S3/06754 ,  H01S3/06758

摘要： An optical fiber amplifier which receives a primary laser beam and generates a coherent amplified laser beam, includes an optical isolator which transmits the primary laser, a 3-dB coupler which receives the primary laser beam, which generates first and second laser beams, which receives first and second amplified laser beams, and which combines the amplified laser beams to thereby produce the coherent amplified laser beam, a phase controller operatively connected in parallel with the 3-dB coupler which controls the phase of each of the amplified laser beams, and first and second fiber amplifiers operatively connected to the 3-dB coupler, the fiber amplifiers receiving first and second laser beams and generating the amplified laser beams, respectively. A high power coherent laser amplifier utilizing several optical fiber amplifier networks connected to one another in parallel is also described.

摘要翻译： 接收主激光束并产生相干放大激光束的光纤放大器包括一个传输主激光器的光隔离器，一个接收主激光束的3-dB耦合器，其产生第一和第二激光束，其接收 第一和第二放大激光束，并且其组合放大的激光束从而产生相干放大的激光束;相位控制器，可操作地与控制每个放大的激光束的相位的3-dB耦合器并联，并且第一 以及可操作地连接到3-dB耦合器的第二光纤放大器，光纤放大器分别接收第一和第二激光束并分别产生放大的激光束。 还描述了利用并联连接的多个光纤放大器网络的高功率相干激光放大器。

公开(公告)号：US5841802A

公开(公告)日：1998-11-24

申请号：US705732

申请日：1996-08-30

申请人： J. Stanley Whiteley ,  Neil F. Ruggieri ,  Robert R. Rice

发明人： J. Stanley Whiteley ,  Neil F. Ruggieri ,  Robert R. Rice

IPC分类号： H01S5/04 ,  H01S5/183 ,  H01S5/34 ,  H01S5/343 ,  H01S3/18

CPC分类号： B82Y20/00 ,  H01S5/18358 ,  H01S3/0959 ,  H01S5/04 ,  H01S5/3406 ,  H01S5/34333

摘要： An electron beam pumped semiconductor laser which includes a substrate, an optical gain structure provided on the substrate, the optical gain structure being comprised of a plurality of alternating quantum well layers and isolation layers, the quantum well layers being spaced apart from one another by respective, intervening ones of the isolation layers by a sufficient distance to substantially isolate the quantum well layers from one another, and a first reflective layer provided on a first surface of the optical gain structure. With this construction, the quantum well layers are quantum mechanically uncoupled. Further, the optical gain structure has a total thickness which is sufficient to enable the optical gain structure to be coupled to excitation of an electron beam produced by an electron beam pumping device and directed through the first reflective layer and incident upon the optical gain structure. All of the quantum well layers of the optical gain structure are preferably well-matched in terms of their thickness and compositional uniformity, so that each of the quantum well layers effectively functions as an independent optical gain region having a spectral gain region which is substantially coincident with that of all of the other quantum well layers. Preferably, each of the quantum well layers is strained, with each of the strained quantum well layers preferably having a thickness less than their pseudomorphic strain limit thickness. The semiconductor laser preferably further includes a second reflective layer provided on a second surface of the optical gain structure, whereby a laser cavity is provided in the region bounded by the first and second reflective layers, with the first reflective layer serving as the rear mirror and the second reflective layer serving as the front or output mirror of the laser. The first reflective layer is preferably mostly transmissive with respect to the electron beam and mostly reflective with respect to the laser light generated within the laser cavity. The second reflective layer is preferably partially transmissive and partially reflective with respect to the laser light generated within the laser cavity.

公开(公告)号：US5677923A

公开(公告)日：1997-10-14

申请号：US584543

申请日：1996-01-11

申请人： Robert R. Rice ,  Neil F. Ruggieri ,  James F. Shanley

发明人： Robert R. Rice ,  Neil F. Ruggieri ,  James F. Shanley

IPC分类号： H01S5/02 ,  H01S5/04 ,  H01S5/183 ,  H01S5/30 ,  H01S5/343 ,  H01S3/19 ,  H01S3/09

CPC分类号： B82Y20/00 ,  H01S5/04 ,  H01S5/18383 ,  H01S3/0959 ,  H01S5/0213 ,  H01S5/18369 ,  H01S5/34333

摘要： An electron beam pumped semiconductor laser includes a semiconductor laser screen and an electron beam source adjacent the semiconductor laser screen. The semiconductor laser screen comprises a transparent single crystal substrate, an electron beam responsive active gain layer on the substrate, and first and second reflective layers. The epitaxial electron beam responsive active gain layer has a crystal structure in alignment with the crystal structure of the substrate, and the first and second reflective layers define a laser cavity through the epitaxial electron beam responsive active gain layer therebetween. The electron beam source generates an electron beam which impinges on the epitaxial electron beam responsive active gain layer thereby generating a laser output. Accordingly, the single crystal active gain layer can be formed on the substrate by epitaxial deposition techniques increasing the performance and reliability of the electron beam pumped semiconductor laser.

摘要翻译： 电子束泵浦半导体激光器包括半导体激光屏和邻近半导体激光屏的电子束源。 半导体激光屏包括透明单晶衬底，衬底上的电子束响应有源增益层以及第一和第二反射层。 外延电子束响应有源增益层具有与衬底的晶体结构对准的晶体结构，并且第一和第二反射层通过其间的外延电子束响应的有源增益层限定激光腔。 电子束源产生电子束，其照射在外延电子束响应的有源增益层上，从而产生激光输出。 因此，可以通过提高电子束泵浦半导体激光器的性能和可靠性的外延沉积技术在衬底上形成单晶有源增益层。