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1. 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。

2. 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。

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

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。

5. 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。

6. 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。

7. 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。

8. 发明授权

US5991314A Design for a Yb-doped CP fiber laser for operating near EDFA absorption band 失效
标题翻译：设计用于在EDFA吸收带附近操作的Yb掺杂CP光纤激光器
公开(公告)号：US5991314A
公开(公告)日：1999-11-23
申请号：US58539
申请日：1998-04-10
申请人： Stanislav I. Ionov , Dennis C. Jones , Metin S. Mangir
发明人： Stanislav I. Ionov , Dennis C. Jones , Metin S. Mangir
IPC分类号： H01S3/067 , H01S3/094 , H01S3/106 , H01S3/16 , H01S3/30
CPC分类号： H01S3/0675 , H01S2302/00 , H01S2303/00 , H01S3/094003 , H01S3/1062 , H01S3/1608 , H01S3/1618
摘要： A Yb-doped cladding pumped fiber laser includes a reflective grating located at each distal end of the laser cavity. Each reflective grating can reflect light propagating inside a fiber core and at a desired wavelength range. A plurality of band-rejecting gratings are disposed between the reflective gratings, whereby the band-rejecting gratings can couple light at an undesired wavelength range and out of the fiber core. When the band-rejecting gratings are in an end-to-end relationship, they are separated by a distance of approximately L whereby L=[(.sigma..sub.e.sup.d +.sigma..sub.a.sup.d)ln 1/T]/[n(.sigma..sub.a.sup.d .sigma..sub.e.sup.u -.sigma..sub.e.sup.d .sigma..sub.a.sup.u)], n is a concentration of ions subject to excitation, .sigma..sub.a.sup.d is an absorption cross section at said desired wavelength range, .sigma..sub.e.sup.u is an emission cross section at said undesired wavelength range, .sigma..sub.e.sup.d is an emission cross section at said desired wavelength range, .sigma..sub.a.sup.u is an absorption cross section at said undesired wavelngth range, and T is a band-rejecting grating transmission factor. The number of band-rejecting gratings is given by N whereby N=d/L.gtoreq.dn (.sigma..sub.a.sup.d .sigma..sub.e.sup.u -.sigma..sub.e.sup.d .sigma..sub.a.sup.u)/[.sigma..sub.e.sup.d +.sigma..sub.a.sup.d) ln 1/T] and d is the length of the laser.
摘要翻译： Yb掺杂包层泵浦光纤激光器包括位于激光腔的每个远端处的反射光栅。每个反射光栅可以反射在光纤芯内传播并在期望波长范围内的光。多个带阻光栅设置在反射光栅之间，由此带状光栅可将不期望的波长范围内的光耦合到光纤芯外。当带状抑制光栅处于端对端关系时，它们被分开大约L的距离，由此L = [（sigma ed + sigma ad）ln 1 / T] / [n（西格玛西格玛 ed sigma au）]，n是受激发的离子的浓度，σad是在所述期望波长范围的吸收截面，σeu是在所述不期望波长范围的发射截面，σed是所述期望的波长范围，σau是在所述不希望的波长范围的吸收截面，T是带阻光栅传播因子。带隙光栅的数量由N给出，其中N = d / L> / = dn（σσσσσσσσ/σ）激光。

9. 发明申请

US20100276598A1 NANO-ANTENNA FOR WIDEBAND COHERENT CONFORMAL IR DETECTOR ARRAYS 有权
标题翻译：用于宽带相干红外探测器阵列的纳米天线
公开(公告)号：US20100276598A1
公开(公告)日：2010-11-04
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 , H01L31/18
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。

10. 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。

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