公开(公告)号：US20070217740A1

公开(公告)日：2007-09-20

申请号：US11227898

申请日：2005-09-15

Applicant: Stephen Brosnan ,  Michael Wickham ,  Hiroshi Komine

Inventor： Stephen Brosnan ,  Michael Wickham ,  Hiroshi Komine

IPC: G02B6/32 ,  G02B3/02

CPC classification number: G02B6/4296 ,  G02B6/32 ,  G02B6/4206 ,  G02B6/425 ,  G02B27/58

Abstract: Encircled far field energy is substantially increased by modifying the near field energy distribution of radiation from each fiber in an emitting array. Each beamlet output from a fiber is modified to have a generally uniform cross-sectional energy distribution, using a pair of aspheric optical elements selected for that purpose. The optical elements may be refractive or reflective. The modified beamlets combine to form a composite output beam with a generally uniform energy distribution. Preferably, the composite beam is subject to an array-wide inverse transformation to a near-Gaussian distribution, further enhancing the encircled far field energy and providing a more efficient high power laser source. Further gains in efficiency are achieved by selecting a fiber bundle pattern, lens array pattern and lens shape that together result in a high fill factor.

Abstract translation: 通过改变来自发射阵列中每个光纤的辐射的近场能量分布，可以显着增加包围的远场能量。 使用为此目的选择的一对非球面光学元件，将从光纤输出的每个子束修改为具有大致均匀的横截面能量分布。 光学元件可以是折射的或反射的。 经修改的小束组合形成具有大致均匀能量分布的复合输出光束。 优选地，组合光束经受阵列宽度逆变换为近似高斯分布，进一步增强了包围的远场能量并提供了更有效的高功率激光源。 通过选择一起导致高填充因子的纤维束图案，透镜阵列图案和透镜形状来实现效率的进一步提高。

公开(公告)号：US07120175B2

公开(公告)日：2006-10-10

申请号：US10761747

申请日：2004-01-20

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

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

IPC: H01S3/10

CPC classification number: H01S5/14 ,  G02F1/37 ,  H01S3/06754 ,  H01S3/2383

Abstract: A laser array architecture scalable to very high powers by closely stacking fiber amplifiers, but in which the output wavelength is selectable to be in the visible or ultraviolet region, without being restricted by the wavelengths usually inherent in the choice of fiber materials. A pump signal at a fundamental frequency is amplified in the fiber amplifier array and input to an array of nonlinear crystals that function as harmonic generators, producing an output array at a desired harmonic of the fundamental frequency. A phase detection and correction system maintains the array of outputs in phase coherency, resulting in a high power output with high beam quality, at the desired frequency. The array of nonlinear crystals may a single array to produce a second harmonic output frequency, or a combination of multiple cascaded arrays configured to produce a selected higher order harmonic frequency.

Abstract translation: 通过紧密地堆叠光纤放大器，但其中输出波长可选择在可见光或紫外区域的激光阵列结构可以扩展到非常高的功率，而不受光纤材料选择中通常固有的波长的限制。 基频的泵浦信号在光纤放大器阵列中被放大并输入到作为谐波发生器的非线性晶体阵列，产生基频的期望谐波的输出阵列。 相位检测和校正系统维持相位一致性的输出阵列，从而产生具有所需频率的高光束质量的高功率输出。 非线性晶体阵列可以是单个阵列以产生二次谐波输出频率，或者被配置为产生选定的较高次谐波频率的多个级联阵列的组合。

公开(公告)号：US06219360B1

公开(公告)日：2001-04-17

申请号：US09066063

申请日：1998-04-24

Applicant: Hiroshi Komine

Inventor： Hiroshi Komine

IPC: H01S310

CPC classification number: F41H13/0062 ,  G02F2203/18 ,  H01S3/2316 ,  H01S3/2383

Abstract: A scalable high power laser system includes a plurality of parallel connected modular power amplifier arms, coupled to a common master oscillator to provide a high average power laser system with a scalable output power level, particularly suitable for laser weapon systems with varying power level output applications. Adaptive optics devices are provided in order to provide pre-compensation of phase front distortions due to the modular amplifier arms as well as encode the wave front of the laser beam with a phase conjugate of atmospheric aberrations.

公开(公告)号：US6144677A

公开(公告)日：2000-11-07

申请号：US132618

申请日：1998-08-11

Applicant: Hiroshi Komine ,  William H. Long, Jr.

Inventor： Hiroshi Komine ,  William H. Long, Jr.

IPC: H01S3/06 ,  G02F1/35 ,  H01S3/067 ,  H01S3/10 ,  H01S3/23 ,  H01S3/30

CPC classification number: H01S3/10076 ,  H01S3/067 ,  H01S3/06754 ,  H01S3/2333

Abstract: A relatively high average power optical laser utilizes a diode pumped multi-mode dual-clad fiber amplifier configured for double pass amplification to provide a relatively higher average power than single mode fiber amplifiers. In order to compensate for mode scrambling and depolarization from the multi-mode fiber amplifier, the output beam from the multi-mode fiber amplifier is applied to a vector phase conjugator after a single pass through the amplifier and reflected back into the amplifier. The vector phase conjugator conjugates the electric field amplitude, phase and polarization and reflects a conjugate wave back into the multi-mode fiber amplifier in a reverse direction. The propagation of the conjugate wave through the amplifier unscrambles mode mixing and restores the beam back to its original polarization state. A Faraday rotator and polarization beam splitter are used to outcouple an output beam after the second pass through the multi-mode fiber amplifier.

Abstract translation: 相对较高的平均功率光学激光器利用配置为双通放大的二极管泵浦多模双包层光纤放大器，以提供比单模光纤放大器相对更高的平均功率。 为了补偿来自多模光纤放大器的模式加扰和去极化，来自多模光纤放大器的输出光束在单次通过放大器并被反射回放大器之后被施加到矢量相位共轭器。 矢量相位共轭器将电场振幅，相位和极化共轭，并将反复的方向反射到多模光纤放大器中。 通过放大器传播共轭波解扰模式混合，并将光束恢复到原来的偏振状态。 在第二次通过多模光纤放大器之后，法拉第旋转器和偏振分束器用于输出输出光束的耦合。

公开(公告)号：US5428438A

公开(公告)日：1995-06-27

申请号：US115361

申请日：1993-08-30

Applicant: Hiroshi Komine

Inventor： Hiroshi Komine

IPC: G01P5/26 ,  G01S7/481 ,  G01S17/08 ,  G02B27/14 ,  G01C3/08 ,  G01P3/36

CPC classification number: G02B27/143 ,  G01P5/26 ,  G01S7/4812 ,  G01S17/08 ,  G01S7/4813

Abstract: A laser ranging and detection system includes a laser for generating a coherent outgoing beam and a telescope. The telescope includes a primary mirror with an aperture for receiving the coherent outgoing beam and for passing an incoming, incoherent, backscattered light. A focal system is positioned between the laser and the telescope and focusses the coherent outgoing beam so as to create a reduced beam-waist cross section at a focal plane. A beam separator is positioned at the focal plane and in a first path between the focal system and the telescope. The beam separator includes a reflective surface arranged to reflect the incoherent backscattered light to a second path for detection. The beam separator further has an optical aperture positioned in the first path, that exhibits a cross sectional area approximately equal to the reduced beam-waist cross section. The size of the optical aperture is such that it enables the beam separator to reflect greater than 90 percent of incoming incoherent light to the detector.

Abstract translation: 激光测距和检测系统包括用于产生相干输出光束和望远镜的激光器。 望远镜包括具有用于接收相干输出光束并用于通过进入的非相干反向散射光的孔的主镜。 焦点系统位于激光和望远镜之间，并且聚焦相干输出光束，以便在焦平面处产生减小的束腰横截面。 光束分离器位于焦平面处，并且位于焦点系统和望远镜之间的第一路径中。 光束分离器包括反射表面，反射表面被布置成将非相干背散射光反射到用于检测的第二路径。 光束分离器还具有位于第一路径中的光学孔，其具有大致等于减小的束腰横截面的横截面积。 光学孔径的尺寸使其能够使分光镜反射大于90％的入射非相干光到检测器。

公开(公告)号：US20140268306A1

公开(公告)日：2014-09-18

申请号：US13916266

申请日：2013-06-12

Applicant: Hiroshi KOMINE ,  Joseph M. FUKUMOTO ,  Chun-Ching SHIH ,  William H. LONG

Inventor： Hiroshi KOMINE ,  Joseph M. FUKUMOTO ,  Chun-Ching SHIH ,  William H. LONG

IPC: G02F1/355 ,  G02F1/35

CPC classification number: G02F1/3556 ,  B82Y20/00 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3507 ,  G02F2201/16 ,  G02F2203/60 ,  Y10S977/755

Abstract: A laser frequency converter includes a first substrate material forming a first planar surface that includes a first nonlinear material situated along a portion of the first planar surface of the first substrate material to perform a frequency conversion of a laser signal. The frequency converter includes a second substrate material forming a second planar surface and separated by a distance from the first planar surface of the first substrate material. The second substrate material includes a second nonlinear material situated along a portion of the second planar surface of the second substrate material to perform the frequency conversion of the laser signal in conjunction with the first non-linear material. The second nonlinear material is offset from the first nonlinear material along an axis of propagation for the laser signal.

Abstract translation: 激光变频器包括形成第一平面的第一衬底材料，该第一衬底材料包括沿着第一衬底材料的第一平坦表面的一部分设置的第一非线性材料，以执行激光信号的频率转换。 变频器包括形成第二平坦表面并与第一基板材料的第一平坦表面分开一段距离的第二基板材料。 第二衬底材料包括沿着第二衬底材料的第二平坦表面的一部分设置的第二非线性材料，以与第一非线性材料一起执行激光信号的频率转换。 第二非线性材料沿着激光信号的传播轴线偏离第一非线性材料。

公开(公告)号：US08254017B2

公开(公告)日：2012-08-28

申请号：US12407470

申请日：2009-03-19

Applicant: Robert R. Rice ,  Michael G. Wickham ,  Hiroshi Komine ,  Peter Livingston ,  Peter Thielen ,  Charles Phillip Asman

Inventor： Robert R. Rice ,  Michael G. Wickham ,  Hiroshi Komine ,  Peter Livingston ,  Peter Thielen ,  Charles Phillip Asman

IPC: C03B37/016 ,  C03B37/075 ,  H04B10/17

CPC classification number: H01S3/06716 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/016 ,  C03B37/02763 ,  C03B2201/08 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2203/18 ,  G02B6/028 ,  H01S3/0672 ,  H01S3/06729 ,  H01S3/09415 ,  H01S2301/03

Abstract: A method is provided for forming an optical fiber amplifier. The method comprises providing a composite preform having a gain material core that includes one or more acoustic velocity varying dopants to provide a longitudinally varying acoustic velocity profile along the gain material core to suppress Stimulated Brillouin Scattering (SBS) effects by raising the SBS threshold and drawing the composite preform to form the optical fiber amplifier.

Abstract translation: 提供一种用于形成光纤放大器的方法。 该方法包括提供具有增益材料芯的复合预制件，增益材料芯包括一个或多个声速变化掺杂剂，以沿着增益材料芯提供纵向变化的声速分布，以通过提高SBS阈值和绘制来抑制受激布里渊散射（SBS）效应 复合预成型件形成光纤放大器。

公开(公告)号：US08166819B2

公开(公告)日：2012-05-01

申请号：US12220345

申请日：2008-07-24

Applicant: Sameh Sadarous Wanis ,  Hiroshi Komine

Inventor： Sameh Sadarous Wanis ,  Hiroshi Komine

IPC: G01H17/00

CPC classification number: B82Y30/00 ,  B01D21/283 ,  B82Y15/00

Abstract: At least one transducer of an apparatus in one example is configured to generate a first standing wave field within a cavity. The first standing wave field exerts a first field-induced force to cause a plurality of particles within the cavity to align in a desired configuration. The at least one transducer is configured to generate a second standing wave field within the cavity. The second standing wave field causes one or more of the plurality of particles within the cavity to fuse into the desired configuration.

Abstract translation: 一个示例中的装置的至少一个换能器被配置为在空腔内产生第一驻波场。 第一驻波场施加第一场致动力以使空腔内的多个颗粒以期望的配置对准。 所述至少一个换能器被配置为在腔内产生第二驻波场。 第二驻波场使多个空腔内的一个或多个颗粒熔化成所需的构型。

公开(公告)号：US20080084598A1

公开(公告)日：2008-04-10

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: G02F1/01

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.

Abstract translation: 一种通过用作光束组合器和光束取样器的衍射光学元件将多个低功率光束组合成相干高功率光束的系统和方法。 振荡源发送分割成以公共波长传播的多个波束的主信号。 每个光束根据相位校正信号由相应的相位调制器锁相。 光束通过光纤阵列引导到衍射光学元件，以允许以期望的衍射级别的光束的有效相干组合。 衍射光学元件包括用于衍射代表组合光束的低功率采样光束的周期性采样光栅。 相位检测级检测相位校正信号从中得到的采样光束中的构成光束的相位，并将其反馈到相位调制器。 可以进一步修改衍射光学元件以准直从光纤阵列发散的光束并将样品光束聚焦到相位检测器上。

公开(公告)号：US07034992B2

公开(公告)日：2006-04-25

申请号：US10681648

申请日：2003-10-08

Applicant: Hiroshi Komine

Inventor： Hiroshi Komine

IPC: H01S3/00 ,  G02B6/308

CPC classification number: G02B6/03622 ,  G02B6/02042 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/302

Abstract: Briefly, the present invention relates to a system for combining the output light beams of a plurality of semiconductor laser diodes, for example, to form a combined light beam with increased brightness. The output light beams from the semiconductor laser diodes are coupled to a plurality of optical fibers forming a fiber coupled diode array. The optical fibers forming the fiber coupled diode array are coupled to a dual clad optical fiber with a central core. The output light beams from the optical fibers from the fiber coupled diode array are coupled to the inner cladding of a dual clad optical fiber. A Stokes seed source is applied to the central core, and the inner-clad diode light acts as a pump source to amplify the Stokes beam by stimulated Ramans scattering, thereby transferring power from the inner cladding into Stokes beam in the central core. The configuration in accordance with the present invention provides a Stokes output light beam with a relatively higher brightness level than known techniques which merely combine the output light beams from a plurality of semiconductor diodes and eliminates the need for a relatively precise alignment and the cost associated with the lenses required by known systems.

Abstract translation: 简而言之，本发明涉及一种用于组合多个半导体激光二极管的输出光束的系统，以便形成具有增加的亮度的组合光束。 来自半导体激光二极管的输出光束耦合到形成光纤耦合二极管阵列的多个光纤。 形成光纤耦合二极管阵列的光纤与具有中心芯的双包层光纤耦合。 来自光纤耦合二极管阵列的光纤的输出光束耦合到双包层光纤的内包层。 斯托克斯种子源被施加到中心纤芯，并且内包层二极管光作为泵浦源，以通过受激拉曼散射来放大斯托克斯光束，从而将功率从内包层转移到中心纤芯中的斯托克斯光束。 根据本发明的配置提供了具有比仅仅组合来自多个半导体二极管的输出光束的已知技术更高的亮度水平的斯托克斯输出光束，并且消除了对相对精确对准的需要以及与 已知系统所需的镜片。