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1. 发明授权

US5726795A Compact phase-conjugate mirror utilizing four-wave mixing in a loop configuration 失效
标题翻译：紧凑型相位共轭反射镜采用四波混频的环形结构
公开(公告)号：US5726795A
公开(公告)日：1998-03-10
申请号：US741274
申请日：1996-10-30
申请人： Alexander A. Betin , Metin S. Mangir , David A. Rockwell
发明人： Alexander A. Betin , Metin S. Mangir , David A. Rockwell
IPC分类号： G02F1/35 , H01S3/083 , H01S3/10 , H01S3/108 , G02B26/08
CPC分类号： G02F1/3538 , H01S3/083 , H01S3/10076
摘要： A compact loop four-wave mixing phase conjugator that can be used in practical optical applications comprises a reflective nonlinear cell, relay optics, an optical gain medium, and an optical diode that together form a unidirectional ring laser resonator. In operation, a signal beam .epsilon..sub.1 is directed to the nonlinear cell, where it passes through a nonlinear medium contained within the cell and is reflected out of the cell as loop beam .epsilon..sub.2. The relay optics direct loop beam .epsilon..sub.2 through the optical diode, optical gain medium, and back to the nonlinear cell, where it intersects and optically interferes with the signal beam .epsilon..sub.1 to form a refractive index grating in the nonlinear medium. The optical diode and gain medium are positioned in the loop so that an oscillation beam .epsilon..sub.3 builds up from optical noise in the resonator and oscillates in a direction counter to the propagation direction of loop beam .epsilon..sub.2. A portion of oscillation beam .epsilon..sub.3 is transmitted by the refractive index grating, reflects off the reflective portion of the nonlinear cell and emerges from the cell as phase conjugate output beam .epsilon..sub.4.
摘要翻译：可用于实际光学应用的紧凑型环路四波混频相位共轭器包括一起形成单向环形激光谐振器的反射非线性单元，中继光学器件，光学增益介质和光二极管。在操作中，信号束ε1被引导到非线性单元，其中它穿过包含在单元内的非线性介质，并且被作为环形波束ε2从单元反射出来。中继光学器件通过光学器件直接环形光束二极管，光学增益介质，并且返回到非线性单元，其中它与信号光束ε1相交并光学地干涉以在非线性介质中形成折射率光栅。光二极管和增益介质定位在环路中，使得振荡光束ε3从谐振器中的光噪声构成，并且在与环形光束ε2的传播方向相反的方向上振荡。振荡光束ε3的一部分是由折射率光栅透射，反射出非线性单元的反射部分，并从单元中作为相位共轭输出光束ε4出射。

2. 发明授权

US06346686B1 Apparatus and method for enhanced laser machining by optimization of pulse duration and spacing 有权
标题翻译：通过优化脉冲持续时间和间距来增强激光加工的装置和方法
公开(公告)号：US06346686B1
公开(公告)日：2002-02-12
申请号：US09421032
申请日：1999-10-20
申请人： Alexander A. Betin , Hans W. Bruesselbach , Metin S. Mangir
发明人： Alexander A. Betin , Hans W. Bruesselbach , Metin S. Mangir
IPC分类号： B23K2638
CPC分类号： B23K26/0622 , B23K26/382 , B23K26/40 , B23K2103/04 , B23K2103/05 , B23K2103/08 , B23K2103/10 , B23K2103/12 , B23K2103/50 , H01S3/10076 , H01S3/2316 , H01S3/2333
摘要： A laser comprising a master oscillator and a loop phase conjugate mirror (Loop-PCM) for substantially eliminating transient relaxation oscillations to instead form controlled sustained pulsations. In a preferred embodiment suitable for material processing applications with high power requirements, the master oscillator is part of a Phase Conjugate Master Oscillator Power Amplifier (PC-MOPA). A method for processing a material using a Loop-PCM by determining and using an optimal pulse fluence, duration and spacing is provided. Using pulses of the kind which are produced by the transient, and normally not desirable, relaxation oscillations common to Nd:YAG and other lasers, relaxation oscillations with controllable pulse duration, repetition rate and duty cycle are generated, making it ideal for materials processing.
摘要翻译：包括主振荡器和环路相位共轭反射镜（Loop-PCM）的激光器，用于基本上消除瞬时弛豫振荡，从而形成受控的持续脉动。在适用于具有高功率要求的材料处理应用的优选实施例中，主振荡器是相位共轭主振荡器功率放大器（PC-MOPA）的一部分。提供了一种通过确定和使用最佳脉冲注量，持续时间和间距来使用Loop-PCM处理材料的方法。使用由Nd：YAG和其他激光器共同的瞬态和通常不期望的弛豫振荡产生的脉冲，产生具有可控脉冲持续时间，重复率和占空比的弛豫振荡，使其成为材料处理的理想选择。

3. 发明授权

US5729380A Loop phase-conjugate mirror for depolarized beams 失效
标题翻译：用于去极化光束的环路相位共轭反射镜
公开(公告)号：US5729380A
公开(公告)日：1998-03-17
申请号：US741275
申请日：1996-10-30
申请人： Alexander A. Betin , Metin S. Mangir
发明人： Alexander A. Betin , Metin S. Mangir
IPC分类号： G02F1/35 , H01S3/083 , H01S3/10 , H01S3/108 , G02B26/08
CPC分类号： G02F1/3538 , H01S3/083 , H01S3/10076
摘要： A loop four-wave mixing phase conjugator that can be used with depolarized signal beams comprises a polarization separator, a polarization mixer, an optical diode, a gain medium and relay optics that together form a unidirectional laser resonator. In operation, the polarization separator separates a signal beam .epsilon..sub.1 into orthogonally polarized signal beam components .epsilon..sub.11 and .epsilon..sub.12 and directs them to a nonlinear medium. The components propagate through the nonlinear medium and emerge as loop beam .epsilon..sub.2, with orthogonally polarized components .epsilon..sub.2 and .epsilon..sub.22. The polarization mixer mixes the energy from the two orthogonally polarized loop beam components, and relay optics direct the loop beam components back to the nonlinear medium at an angle with respect to the input beam. The loop beam components intersect and optically interfere with signal beam components .epsilon..sub.11 and .epsilon..sub.22 in the nonlinear medium to form gratings. The optical diode and gain medium are positioned in the optical loop so that an oscillation beam .epsilon..sub.3 builds up from optical noise in the resonator and oscillates in a direction counter to the propagation direction of loop beam components .epsilon..sub.21 and .epsilon..sub.22. A portion of oscillation beam .epsilon..sub.3 is transmitted by the gratings, and exits the optical loop as an output beam .epsilon..sub.4. .epsilon..sub.3 is phase conjugate to the input beam .epsilon..sub.1 in both the spatial and polarization senses.
摘要翻译：可以与去极化信号光束一起使用的环路四波混频相位共轭器包括一起形成单向激光谐振器的偏振分离器，偏振混频器，光二极管，增益介质和中继光学器件。在操作中，偏振分离器将信号光束ε1分离成正交偏振信号光束分量ε11和ε12，并将它们引导到非线性介质。这些分量通过非线性介质传播并出现为环形光束ε2，具有正交极化分量ε2和ε22。偏振混频器混合来自两个正交极化环形光束分量的能量，并且中继光学器将环形光束分量反馈回非线性介质相对于输入光束成一定角度。环路光束分量与非线性介质中的信号光束分量ε11和ε22相交并光学地干扰以形成光栅。光二极管和增益介质被定位在光环路中，使得振荡光束ε3从谐振器中的光噪声构成，并且在与环形光束分量ε21和ε22的传播方向相反的方向上振荡。振荡光束ε3由光栅传输，并作为输出光束ε4离开光环路.ε3在空间和极化感测中都与输入光束epsilon 1相位共轭。

4. 发明授权

US5434662A Speckle resistant method and apparatus with chirped laser beam 失效
标题翻译：具有啁啾激光束的防斑方法和装置
公开(公告)号：US5434662A
公开(公告)日：1995-07-18
申请号：US173302
申请日：1993-12-23
申请人： David A. Rockwell , Metin S. Mangir
发明人： David A. Rockwell , Metin S. Mangir
IPC分类号： G01S7/484 , G01S17/10 , G01S17/66 , G01C3/08
CPC分类号： G01S17/66 , G01S17/102 , G01S7/484
摘要： Laser beam speckle effects are mitigated by frequency chirping a single-mode laser beam, reflecting it off a speckling surface, and then integrating the reflected beam over at least one chirp period. The speckle reduction is comparable to the use of a multi-longitudinal mode beam having a bandwidth similar to the chirped frequency excursion, while leaving the beam compatible with nonlinear optical processes that are not compatible with multi-longitudinal mode beams. Where the nonlinear process is stimulated Brillouin scattering (SBS) phase conjugation, the beam can be chirped at a rate up to the order of ##EQU1## where .DELTA..nu..sub.B is the gain bandwidth and L is the effective SBS interaction length of the phase conjugator, and C is the speed of light. Other nonlinear processes with which the beam may be used include harmonic generation and Raman-based beam cleanup or wavelength conversion.
摘要翻译：通过频率啁啾单模激光束，将其从斑点表面反射出来，然后在至少一个啁啾周期上积分反射光束来减轻激光束斑点效应。斑点减少与使用具有类似于啁啾频率偏移的带宽的多纵向模式波束相当，同时使波束与与多纵向模式波束不兼容的非线性光学过程兼容。在非线性过程被刺激的布里渊散射（SBS）相位共轭的情况下，波束可以以高达“IMAGE”的速率被啁啾，其中DELTA nu B是增益带宽，L是相位共轭器的有效SBS相互作用长度，C是光速。可以使用光束的其他非线性处理包括谐波生成和基于拉曼的束清除或波长转换。

5. 发明授权

US5353150A Gain homogenization apparatus and method for use in stimulated scattering of beams with non-uniform spatial intensity distribution 失效
标题翻译：用于具有不均匀空间强度分布的光束的受激散射中的增益均化装置和方法
公开(公告)号：US5353150A
公开(公告)日：1994-10-04
申请号：US996481
申请日：1992-12-23
申请人： Metin S. Mangir , David A. Rockwell
发明人： Metin S. Mangir , David A. Rockwell
IPC分类号： G02B1/02 , G02F1/35 , H01S3/108 , H01S3/23 , H01S3/30 , G02B27/00 , H01S3/098
CPC分类号： H01S3/2333 , G02F1/3538 , H01S3/30 , H01S3/10076
摘要： Optical energy transfers, via stimulated scattering, to a seed beam from a pump beam that has a non-uniform optical intensity distribution are made with an enhanced spatial uniformity of amplification by spatial mixing of the pump beam within the medium where amplification takes place. In a stimulated Brillouin scattering (SBS) phase conjugate mirror (PCM) having an amplifier and a phase conjugating oscillator, beam mixing elements are provided on opposite sides of the amplifier to mix both the input and return phase conjugated beams within the amplifier, and to restore the beams after they have exited. The preferred mixing mechanism is a plurality of cylindrical lenses that are spaced along the beam path, and/or have unequal focal lengths to produce a series of foci within the amplification medium that are rotated with respect to each other. Amplitude replication as well as high fidelity phase conjugation are enhanced using SBS.
摘要翻译：通过经受激散射的光能量从具有不均匀光强度分布的泵浦光束传播到种子束，通过在发生放大的介质中的泵浦光束的空间混合，具有增强的空间均匀性。在具有放大器和相位共振振荡器的受激布里渊散射（SBS）相位共轭反射镜（PCM）中，在放大器的相对侧设置光束混合元件，以将放大器内的输入和相位共轭光束混合，退出后恢复光束。优选的混合机构是沿着光束路径间隔开的多个柱面透镜和/或具有不相等的焦距以产生在放大介质内相对于彼此旋转的一系列焦点。使用SBS增强幅度复制以及高保真相位共轭。

6. 发明授权

US4880295A Optical device enhancement method and apparatus by control of stimulated brillouin scattering gain 失效
标题翻译：通过控制受激布里渊散射增益的光学器件增强方法和装置
公开(公告)号：US4880295A
公开(公告)日：1989-11-14
申请号：US111941
申请日：1987-10-21
申请人： David A. Rockwell , Metin S. Mangir , Jeffrey O. White , Dennis C. Jones
发明人： David A. Rockwell , Metin S. Mangir , Jeffrey O. White , Dennis C. Jones
IPC分类号： G02F20060101 , G02F1/35 , H01S3/08 , H01S3/10 , H01S3/30
CPC分类号： H01S3/305 , G02F1/3538
摘要： The output of an optical device which involves a stimulated brillouin scattering (SBS) gain medium is enhanced over a range of input beam intensities by providing a gain medium which has a given SBS gain for a given input beam intensity, and modifying the gain medium to reduce its SBS gain coefficient. By lowering the SBS gain coefficient, SBS dominance and suppression of stimulated Raman scattering (SRS) can be mitigated, and the output fidelity of a phase conjugation system with respect to its input can be significantly enhanced. Mechanisms for reducing the SBS gain coefficient include increasing the medium viscosity, thermal conductivity and/or diffusion coefficient, or causing the medium relaxation zone to coincide with the frequency of the phonons involved in the SBS process. Two different media can be mixed together in varying proportions to progressively modify the overall medium SBS gain as the input beam intsnsity is progressively changed.
摘要翻译：涉及受激布里渊散射（SBS）增益介质的光学器件的输出通过提供对于给定输入光束强度具有给定SBS增益的增益介质，并且将增益介质修改为降低其SBS增益系数。通过降低SBS增益系数，可以减轻SBS优势和受激拉曼散射（SRS）的抑制，相位共轭系统相对于其输入的输出保真度可以显着增强。用于降低SBS增益系数的机制包括增加介质粘度，热导率和/或扩散系数，或使介质松弛区与SBS过程中涉及的声子的频率一致。两种不同的介质可以以不同比例混合在一起，以逐渐改变整个介质SBS增益，因为输入波束的精度逐渐改变。

7. 发明授权

US08053734B2 Nano-antenna for wideband coherent conformal IR detector arrays 有权
标题翻译：用于宽带相干共形红外探测器阵列的纳米天线
公开(公告)号：US08053734B2
公开(公告)日：2011-11-08
申请号：US12433576
申请日：2009-04-30
申请人： Deborah J. Kirby , David T. Chang , Terence J. De Lyon , James H. Schaffner , Metin S. Mangir , Jeffery J. Puschell , Jar Jueh Lee , Michael Gritz
发明人： Deborah J. Kirby , David T. Chang , Terence J. De Lyon , James H. Schaffner , Metin S. Mangir , Jeffery J. Puschell , Jar Jueh Lee , Michael Gritz
IPC分类号： G01J5/02
CPC分类号： G01J5/08 , G01J5/0837 , H01L31/1032
摘要： A conformal coherent wideband antenna coupled IR detector array included a plurality of unit cells each having a dimension that includes an antenna for focusing radiation onto an absorber element sized less than the dimension. In one embodiment, the absorber element may be formed of a mercury cadmium telluride alloy. According to a further embodiment, the antenna array may be fabricated using sub-wavelength fabrication processes.
摘要翻译：保形相干宽带天线耦合红外探测器阵列包括多个单位单元，每个单元具有包括用于将辐射聚焦到尺寸小于该尺寸的吸收元件上的天线的尺寸。在一个实施例中，吸收元件可以由汞镉碲合金形成。根据另一实施例，天线阵列可以使用亚波长制造工艺制造。

8. 发明授权

US4876693A Integrated laser head and low inductance pulse forming circuit for pulsed gas lasers 失效
标题翻译：脉冲气体激光器的集成激光头和低电感脉冲形成电路
公开(公告)号：US4876693A
公开(公告)日：1989-10-24
申请号：US686339
申请日：1984-12-26
申请人： David J. Lucero , Claudio G. Parazzoli , Metin S. Mangir
发明人： David J. Lucero , Claudio G. Parazzoli , Metin S. Mangir
IPC分类号： H01S3/03 , H01S3/038 , H01S3/0971
CPC分类号： H01S3/038 , H01S3/03 , H01S3/0971
摘要： Integrated laser head apparatus is disclosed for producing high energy pulses in pulsed gas lasers. The present invention provides high energy pulses over short time durations suitable for laser rangefinder systems due to an improvement in the arrangement of energy storage capacitors (22, 24) which keeps circuit inductance to a minimum. The pair of nested, ceramic capacitors (22, 24) are substantially cylindrical and are coupled through thin conductive layers (23). The capacitors are charged by a spark gap trigger (14), an inductor (18), and a charging resistor (52). The capacitors (22, 24) enclose a pressure vessel (28) which further encloses a laser resonator (12) including a laser output coupler mirror (42), totally reflective mirror (44), discharge electrodes (32, 34) and a central chamber (30) which contains a pressurized gaseous phase laser medium. The high voltage discharge electrode (32) is disposed coaxially with the surrounding capacitors (22, 24).
摘要翻译：公开了用于在脉冲气体激光器中产生高能脉冲的集成激光头装置。本发明由于能够将电路电感保持最小的储能电容器（22,24）的布置改进而在适用于激光测距系统的短时间内提供高能量脉冲。一对嵌套陶瓷电容器（22,24）基本上是圆柱形的，并且通过薄导电层（23）耦合。电容器由火花隙触发器（14），电感器（18）和充电电阻器（52）充电。电容器（22,24）包围压力容器（28），该压力容器进一步包围激光谐振器（12），该激光谐振器包括激光输出耦合镜（42），全反射镜（44），放电电极（32,34）包含加压气相激光介质的室（30）。高电压放电电极（32）与周围的电容器（22,24）同轴配置。

9. 发明授权

US07088886B2 Self-adapting limiter 失效
标题翻译：自适应限制器
公开(公告)号：US07088886B2
公开(公告)日：2006-08-08
申请号：US10714494
申请日：2003-11-13
申请人： Metin S. Mangir , Daniel Yap , Willie W. Ng
发明人： Metin S. Mangir , Daniel Yap , Willie W. Ng
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： H04B10/2537 , G01S7/292
摘要： A limiter for limiting selected frequency components by generating Stokes waves in a stimulated Brillouin scattering medium. The generated Stokes waves create a seed that is provided to another stimulated Brillouin scattering medium. The seed selecting the undesired frequency components to be attenuated.
摘要翻译：限制器，用于通过在受激布里渊散射介质中产生斯托克斯波来限制所选频率分量。所产生的斯托克斯波产生提供给另一个受激布里渊散射介质的种子。种子选择要衰减的不需要的频率分量。

10. 发明授权

US07283751B2 Adaptive optical system compensating for phase fluctuations 有权
标题翻译：自适应光学系统补偿相位波动
公开(公告)号：US07283751B2
公开(公告)日：2007-10-16
申请号：US10759509
申请日：2004-01-15
申请人： Hans W. Bruesselbach , Monica Minden , Metin S. Mangir , Cris Jones , David M. Pepper
发明人： Hans W. Bruesselbach , Monica Minden , Metin S. Mangir , Cris Jones , David M. Pepper
IPC分类号： H04B10/00
CPC分类号： H04B10/112
摘要： A method and apparatus for compensating for phase fluctuations incurred by an optical beam travelling through free space, especially a turbulent atmosphere. A transmitting station transmits a plurality of uniquely tagged optical beams through free space. The plurality of uniquely tagged optical beams are received at a receiving station, where a parameter of each uniquely tagged optical beam is quantified. Information associated with the quantified parameter for each uniquely tagged optical beam is then sent back to the transmitting station via a wireless feedback link. Using the information, the transmitting station adjusts at least one uniquely tagged optical beam to compensate for phase fluctuations.
摘要翻译：一种用于补偿由光束穿过自由空间，特别是湍流气氛所引起的相位波动的方法和装置。发射站通过自由空间发射多个唯一标记的光束。多个唯一标记的光束在接收站处被接收，其中每个唯一标记的光束的参数被量化。与每个唯一标记的光束的量化参数相关联的信息然后经由无线反馈链路被发送回发送站。使用该信息，发射站调整至少一个唯一标记的光束以补偿相位波动。

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