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1. 发明授权

US06760151B1 Depolarized semiconductor laser sources 有权
标题翻译：去极化半导体激光源
公开(公告)号：US06760151B1
公开(公告)日：2004-07-06
申请号：US09559936
申请日：2000-04-27
申请人： Edward C. Vail , Mehrdad Ziari , Bernard Fidric , Jianping Zhang , Stuart MacCormack , Vincent E. Dominic
发明人： Edward C. Vail , Mehrdad Ziari , Bernard Fidric , Jianping Zhang , Stuart MacCormack , Vincent E. Dominic
IPC分类号： H01S300
CPC分类号： H01S5/146 , H01S3/005 , H01S3/094003 , H01S3/094073 , H01S3/09415 , H01S5/06236 , H01S5/065 , H01S5/0652 , H01S5/0656
摘要： A semiconductor pump laser uses a depolarzer to depolarize the pump light entering the fiber amplifier. The depolarized light source is useful for reducing polarization dependent gain of fiber amplifiers. The pump laser includes one or more semiconductor, coherence-collapsed laser sources emitting polarized pump outputs, and one or more depolarizers disposed to depolarize the polarized pump output from the lasers. One or more fiber outputs are coupled to the one or more depolarizers to receive depolarized pump light. The depolarizer may include an N×M polarization preserving coupler having N inputs and M outputs, N and M being at least 2, an input to the depolarizer at a first coupler input, an output port from the depolarizer at a first coupler output. A polarization-controlling optical path is coupled between a second coupler output and a second coupler input. A polarization of light exiting the N×M coupler through the second coupler output is substantially orthogonal to a polarization of light entering the N×M coupler through the second coupler input.
摘要翻译：半导体泵浦激光器使用去极化器去除进入光纤放大器的泵浦光。去极化光源对于减少光纤放大器的偏振相关增益是有用的。泵浦激光器包括一个或多个发射偏振泵浦输出的半导体，相干折叠激光源和一个或多个去偏振器，其被设置为使来自激光器的偏振泵输出去极化。一个或多个光纤输出耦合到一个或多个去偏振器以接收去极化的泵浦光。去偏振器可以包括具有N个输入和M个输出，N和M至少为2的N×M偏振保持耦合器，在第一耦合器输入处的去偏振器的输入，来自第一耦合器输出处的去偏振器的输出端口。偏振控制光路耦合在第二耦合器输出和第二耦合器输入之间。通过第二耦合器输出离开NxM耦合器的光的极化基本上正交于通过第二耦合器输入进入NxM耦合器的光的偏振。

2. 发明授权

US06407855B1 Multiple wavelength optical sources 有权
标题翻译：多波长光源
公开(公告)号：US06407855B1
公开(公告)日：2002-06-18
申请号：US09430394
申请日：1999-10-29
申请人： Stuart MacCormack , David M. Giltner , Vincent G. Dominic , Donald R. Scifres , Bardia Pezeshki , Edward C. Vail , Mehrdad Ziari , Robert G. Waarts
发明人： Stuart MacCormack , David M. Giltner , Vincent G. Dominic , Donald R. Scifres , Bardia Pezeshki , Edward C. Vail , Mehrdad Ziari , Robert G. Waarts
IPC分类号： H01S330
CPC分类号： H01S3/094 , H01S3/0675 , H01S3/08086 , H01S3/0812 , H01S3/094042 , H01S3/302
摘要： Optical pumping arrangements are provided for the broadband or multiple wavelength pumping of optical sources. Sources may be based on Raman gain media and may use multiple output couplers to couple out different wavelength ranges. Cascaded Raman resonator (CRR) configurations may also be used. Overlapping resonators at different wavelengths may be configured to share gain media, and may have separate portions in separate optical paths. Attenuation filters may also be used that are matched to the gain profile of a gain medium, to flatten the gain spectrum and allow equalization of gain to different output wavelengths. In one embodiment, polarization maintaining fiber is used to develop resonant conditions at different wavelengths in different polarization states. Wideband output gratings may be substituted for narrowband gratings to provide CRR configurations with a broader output band. Broadband amplification may also be provided by using a laser source operating in coherence collapse. The multiple wavelength pumping lends itself to a pumping arrangement in which sources at different wavelengths are combined into separate transmission/gain media such as the different fibers of an optical fiber cable.
摘要翻译：提供了用于光源的宽波长或多波长泵浦的光泵浦装置。源可以基于拉曼增益介质，并且可以使用多个输出耦合器耦合出不同的波长范围。也可以使用级联拉曼谐振器（CRR）。可以将不同波长的重叠谐振器配置成共享增益介质，并且可以在单独的光路中具有分离的部分。还可以使用与增益介质的增益曲线匹配的衰减滤波器，以平坦化增益谱，并允许将增益均衡到不同的输出波长。在一个实施例中，使用偏振保持光纤来发展不同偏振态的不同波长的谐振条件。宽带输出光栅可以代替窄带光栅，以提供具有更宽输出频带的CRR配置。也可以通过使用在相干塌陷中操作的激光源来提供宽带放大。多波长泵浦本身适用于泵送装置，其中将不同波长的源组合成单独的传输/增益介质，例如光纤电缆的不同光纤。

3. 发明申请

US20050207455A1 Method and apparatus for efficient coupling of pump light into fiber amplifiers 审中-公开
标题翻译：用于将泵浦光有效耦合到光纤放大器中的方法和装置
公开(公告)号：US20050207455A1
公开(公告)日：2005-09-22
申请号：US11014229
申请日：2004-12-15
申请人： Stuart MacCormack , Dirk Kuizenga , Bernard Fidric , Hanna Hoffman
发明人： Stuart MacCormack , Dirk Kuizenga , Bernard Fidric , Hanna Hoffman
IPC分类号： G02B6/28 , H01S20060101 , H01S3/067 , H01S3/094 , H01S3/30
CPC分类号： H01S3/06754 , G02B6/2856 , H01S3/06708 , H01S3/06729 , H01S3/06737 , H01S3/094003
摘要： A fiber amplifier is disclosed and includes a fiber amplifier body comprising a core of a first diameter, at least one signal conduit in optical communication with a signal source and the fiber amplifier body, the signal conduit sized to the first diameter, and one or more pump conduits configured to propagate pump radiation to the fiber amplifier body, the pump conduits in optical communication with at least one pump source.
摘要翻译：公开了一种光纤放大器，其包括：光纤放大器本体，其包括第一直径的芯，与信号源光纤通信的至少一个信号导管和光纤放大器本体，尺寸为第一直径的信号导线，以及一个或多个泵管道被配置为将泵浦辐射传播到光纤放大器主体，泵管道与至少一个泵浦源光学通信。

4. 发明授权

US5729375A Optical amplification system with non-orthogonal signal and distributed multi-pump beams and photorefractive cleanup 失效
$Optical amplification system with non-orthogonal signal and distributed multi-pump beams and photorefractive cleanup$
标题翻译：具有非正交信号和分布式多泵浦光束的光学放大系统和光折射清理
公开(公告)号：US5729375A
公开(公告)日：1998-03-17
申请号：US609200
申请日：1996-03-01
申请人： Marvin B. Klein , Barry Wechsler , Jack L. Feinberg , Stuart MacCormack
发明人： Marvin B. Klein , Barry Wechsler , Jack L. Feinberg , Stuart MacCormack
IPC分类号： H01S3/0941 , H01S3/16 , H01S3/08 , G02B5/23 , G02F1/01
CPC分类号： H01S3/0941 , H01S3/16 , H01S3/1675
摘要： An optical amplification system directs a diffraction-limited signal beam through a series of crossings, at substantially less than 90.degree. crossing angles, with a number of non-diffraction-limited pump beams in a photorefractive medium. The pump beams are e-polarized while the signal beam travels down the crystal medium's c-axis and is polarized in the same plane as the pump beam polarization, resulting in an energy transfer from the pumps to the signal beam while leaving the signal beam diffraction-limited. The photorefractive medium is preferably a series of BaTiO.sub.3 :Rh crystals that are aligned parallel to the angled edge of a wedged-shape prism through which the pump beams are transmitted, with the crystals cut so that their C-axes are parallel to the signal beam.
摘要翻译：光学放大系统通过与光折射介质中的许多非衍射受限的泵浦光束基本上小于90°交叉角的一系列交叉引导衍射受限的信号光束。泵浦光束被e偏振，同时信号光束沿着晶体介质的c轴向下移动并且在与泵浦光束偏振相同的平面中被极化，导致从泵到信号光束的能量传递，同时留下信号束衍射 -有限。光折射介质优选是一系列BaTiO 3：Rh晶体，其平行于楔形棱镜的倾斜边缘排列，泵浦光束通过该倾斜边缘被透射，晶体被切割成使得它们的C轴平行于信号束。

5. 发明授权

US5717516A Hybrid laser power combining and beam cleanup system using nonlinear and adaptive optical wavefront compensation 失效
标题翻译：混合激光功率组合和束清理系统采用非线性和自适应光波前补偿
公开(公告)号：US5717516A
公开(公告)日：1998-02-10
申请号：US825835
申请日：1997-04-04
申请人： Marvin B. Klein , David M. Pepper , Ronald R. Stephens , Thomas R. O'Meara , David Welch , Robert J. Lang , Jack L. Feinberg , Stuart MacCormack
发明人： Marvin B. Klein , David M. Pepper , Ronald R. Stephens , Thomas R. O'Meara , David Welch , Robert J. Lang , Jack L. Feinberg , Stuart MacCormack
IPC分类号： G02F1/39 , H01S3/00 , G02B6/26
CPC分类号： G02F1/397
摘要： An optical amplification system directs a diffraction-limited signal beam through a series of approximately 90.degree. crossings with a number of non-diffraction-limited pump beams in a photorefractive medium. All of the beams are s-polarized, resulting in an energy transfer from the pumps to the signal beam while leaving the signal beam diffraction-limited. The photorefractive medium is preferably a series of BaTiO.sub.3 :Rh crystals that receive the pump and signal beams through orthogonal faces, with their C-axes at approximately 45.degree. to both beams. A binary tree optical distribution network is used to minimize waveguide splits in forming a large number of pump beams. The outputs of several amplification modules are combined into a single output beam using adaptive optics, with the outputs from the different modules phase matched to each other by diverting two minor portions of the combined beam, partially overlapping the diverted beams and adjusting the amplification module phases to cancel phase differentials between the overlapped portions. Similarly, sets of combined and phase-matched beams can be combined with each other (again using adaptive optics) to generate still higher powers using a super module approach.
摘要翻译：光学放大系统通过在光折射介质中的许多非衍射受限的泵浦光束将衍射受限的信号光束引导通过一系列大约90°的交叉。所有的光束都是s偏振的，从而导致从泵到信号光束的能量传递，同时保持信号光束衍射受限。光折射介质优选是一系列BaTiO 3：Rh晶体，其通过正交面接收泵浦和信号光束，其C轴与两个波束大约45°。二叉树光分配网络用于最小化形成大量泵浦波束的波导分裂。使用自适应光学器件将多个放大模块的输出组合成单个输出光束，来自不同模块的输出通过转移组合光束的两个次要部分相互匹配，部分地与转向光束重叠并且调整放大模块相位以消除重叠部分之间的相位差。类似地，组合和相位匹配波束的组可以彼此组合（再次使用自适应光学器件）以使用超级模块方法来产生更高的功率。

6. 发明授权

US5430748A Laser system with phase-conjugator-enhanced output 失效
标题翻译：具有相位共轭增强输出的激光系统
公开(公告)号：US5430748A
公开(公告)日：1995-07-04
申请号：US184676
申请日：1994-01-21
申请人： Stuart MacCormack , Jack L. Feinberg
发明人： Stuart MacCormack , Jack L. Feinberg
IPC分类号： H01S3/10 , H01S5/14 , H01S5/40 , H01S3/13
CPC分类号： H01S3/10076 , H01S5/4025 , H01S5/145 , H01S5/2036 , H01S5/4006 , H01S5/4062
摘要： A laser system includes a linear array of broad area lasers. Such a laser source produces a beam that has a polarization axis in the direction in which the array extends and a coherency axis orthogonal to that. The laser is injection locked by phase conjugating a portion of the array's light output. The phase conjugator has a conjugation axis. The coherency axis is aligned with this conjugation axis. External cavity optics include a polarization rotator to align the polarization axis with the coherency axis before the beam reaches the phase conjugator. Thus, the polarization, coherency, and conjugation axes are all aligned, optimizing the action of the phase conjugator. The approach works in both a single-beam and a dual-beam phase conjugation mode. The result is a laser system output of higher intensity, greater coherence, and a narrower frequency range.
摘要翻译：激光系统包括广域激光器的线性阵列。这样的激光源产生在阵列延伸的方向上具有偏振轴的光束和与之相垂直的相干轴。激光器通过相位共轭阵列的光输出的一部分被注入锁定。相位共轭器具有共轭轴。相干轴与该共轭轴对齐。外腔光学器件包括偏振旋转器，以在光束到达相位共轭器之前将偏振轴与相干轴对准。因此，极化，相干性和共轭轴都对齐，优化了相位共轭器的作用。该方法在单光束和双光束相位共轭模式中均有效。结果是激光系统的输出强度更高，相干性更强，频率范围更窄。

7. 发明授权

US06275250B1 Fiber gain medium marking system pumped or seeded by a modulated laser diode source and method of energy control 失效
标题翻译：通过调制激光二极管源和能量控制方法泵送或种子的光纤增益介质标记系统
公开(公告)号：US06275250B1
公开(公告)日：2001-08-14
申请号：US09235125
申请日：1999-01-21
申请人： Steven Sanders , David F. Welch , Stuart MacCormack , Ramon E. Alvarez
发明人： Steven Sanders , David F. Welch , Stuart MacCormack , Ramon E. Alvarez
IPC分类号： B41J2435
CPC分类号： B23K26/032 , B23K26/06 , B23K26/064 , B23K26/0648 , B23K26/0665 , G06K1/126
摘要： Double clad fiber gain medium systems particularly adapted for marking indicia on surfaces of articles are disclosed. These systems provide a modulated output from a pump or seed semiconductor laser source to a double clad fiber gain medium which provides an amplified marking output scanned over the article surface with an optical scanner forming a plurality of strokes, the completion of which results in the indicia.
摘要翻译：公开了特别适用于在物品表面上标记标记的双包层光纤增益介质系统。这些系统提供从泵浦或种子半导体激光源到双包层光纤增益介质的调制输出，其提供用物镜表面扫描的放大的标记输出，该光学扫描器形成多个笔划，其完成导致标记。

8. 发明授权

US6049415A Polarization maintaining fiber lasers and amplifiers 失效
标题翻译：极化保持光纤激光器和放大器
公开(公告)号：US6049415A
公开(公告)日：2000-04-11
申请号：US986406
申请日：1997-12-08
申请人： Stephen G. Grubb , Paul Freeman , Stuart MacCormack , Robert G. Waarts
发明人： Stephen G. Grubb , Paul Freeman , Stuart MacCormack , Robert G. Waarts
IPC分类号： H01S3/067 , H01S3/23 , H01S3/10
CPC分类号： H01S3/06758 , H01S3/0078 , H01S3/06712 , H01S3/0675 , H01S3/2316 , H01S3/2333
摘要： A number of variations are provided of a device that provides an amplified single polarization optical signal. Each of these relies on the use of a non-polarization maintaining gain medium through which the signal is directed, and a polarization shifter and reflector that direct the signal back through the same gain medium with a shifted polarization state. An input polarization beamsplitter directs the returning optical signal away to an output, based on its shifted polarization state. The embodiments of the invention include the use of double-clad fiber. Multiple stages may be used to provide specific amplification parameters. In one embodiment, both amplification stages reside in the same polarization shifting optical path. A polarization maintaining amplifier of this type may be used as part of a master oscillator-power amplifier, in which polarization maintaining fiber is used as part of the source laser. Wavelength selective components are also used in certain embodiments of the invention, to allow for wavelength selectivity, as well as a single polarization state, in amplifiers, lasers and amplified spontaneous emission (ASE). In one embodiment, an optical circulator is used to allow the amplified, shifted polarization state signals to be directed away from the input to a desired output port. A feedback loop may also be used to control the polarization state at the amplifier output. A polarization beamsplitter at the output directs light not having the desired polarization state to a photodetector, the output of which is used by a polarization controller at the input, such that the input polarization state is adjusted until the control signal from the photodetector is minimized.
摘要翻译：提供了一种提供放大的单偏振光信号的装置的变型。这些都依赖于使用信号引导的非偏振维持增益介质，以及偏振移动器和反射器，其将信号反向通过具有偏移偏振状态的相同增益介质。输入偏振分束器基于其移动的偏振状态将返回光信号导向输出。本发明的实施例包括使用双包层光纤。可以使用多个阶段来提供特定的扩增参数。在一个实施例中，两个放大级位于相同的偏振移位光路中。这种类型的偏振保持放大器可以用作主振荡器功率放大器的一部分，其中使用偏振保持光纤作为源激光器的一部分。在本发明的某些实施例中也使用波长选择性分量，以便在放大器，激光器和放大的自发发射（ASE）中允许波长选择性以及单个极化状态。在一个实施例中，光环行器用于允许放大的偏移偏振状态信号被引导离开输入到期望的输出端口。还可以使用反馈回路来控制放大器输出端的极化状态。输出处的偏振分束器将不具有期望的偏振状态的光引导到光电检测器，其输出由偏振控制器在输入端使用，使得输入偏振状态被调整直到来自光电检测器的控制信号最小化。

9. 发明授权

US07016104B2 Wider dynamic range to a FBG stabilized pump 有权
标题翻译：更宽的动态范围到FBG稳定泵
公开(公告)号：US07016104B2
公开(公告)日：2006-03-21
申请号：US10610510
申请日：2003-06-30
申请人： Erji Mao , Stuart MacCormack , Greg Roth , Steven Sanders
发明人： Erji Mao , Stuart MacCormack , Greg Roth , Steven Sanders
IPC分类号： H01S3/00
CPC分类号： H04B10/296 , H01S3/1305 , H01S3/1312 , H01S3/302 , H04B10/2916
摘要： The present application relates to a Raman amplifier having an increased dynamic range, and particularly for laser pump sources and a method of pumping Raman fiber amplifiers over a greater dynamic range. In a multi-channel optical system, optical amplifiers must be able to provide gains over a large dynamic range, which is determined by the distribution of node-to-node distances in the network, as well as the number of channels. The present invention has found that the dynamic range of a Raman amplifier can be significantly increased by using pulse width modulation to pulse pump current at or near the minimum current stability threshold, in order to produce lower power output. The duty cycle of the pulsed current is selected to achieve a time-averaged operating condition, thus the time averaged pump power can be reduced in a linear fashion well below the capability of a continuous wave system.
摘要翻译：本申请涉及具有增加的动态范围的拉曼放大器，特别是用于激光泵浦源的拉曼放大器以及在更大动态范围内泵浦拉曼光纤放大器的方法。在多通道光学系统中，光放大器必须能够在大的动态范围内提供增益，这取决于网络中节点到节点间距离的分布以及信道数量。本发明已经发现，为了产生较低的功率输出，通过使脉冲宽度调制到等于或接近最小电流稳定阈值的脉冲泵电流，可以显着提高拉曼放大器的动态范围。选择脉冲电流的占空比以实现时间平均的操作条件，因此可以以远低于连续波系统的能力的线性方式减小时间平均的泵浦功率。

10. 发明申请

US20050276286A1 Pulsed laser apparatus and method 有权
标题翻译：脉冲激光装置及方法
公开(公告)号：US20050276286A1
公开(公告)日：2005-12-15
申请号：US10867531
申请日：2004-06-14
申请人： Stuart MacCormack , Robert Waarts
发明人： Stuart MacCormack , Robert Waarts
IPC分类号： H01S3/067 , H01S3/11 , H01S3/117
CPC分类号： H01S3/117 , H01S3/0675 , H01S3/09408 , H01S3/1103 , H01S3/1127 , H01S3/115
摘要： A laser apparatus for generating optical pulses is disclosed, said laser apparatus has a reflecting gain element preferably including a fiber gain medium. The reflecting gain element is coupled to a controllable reflecting/transmitting module having a reflecting state and a transmitting state, wherein the controllable reflecting/transmitting means are operable to switch from the transmitting state to the reflecting state to initiate a build-up of an optical pulse, and to switch back to the transmitting state for outputting the optical pulse before it reaches the reflecting/transmitting means after a cavity roundtrip. In a preferred embodiment, the controllable reflecting/transmitting module includes an acousto-optic switch at an output end of a laser operable to output the optical pulse in zeroth diffraction order.
摘要翻译：公开了一种用于产生光脉冲的激光装置，所述激光装置具有优选包括光纤增益介质的反射增益元件。反射增益元件耦合到具有反射状态和发射状态的可控反射/发射模块，其中可控反射/发射装置可操作以从透射状态切换到反射状态，以启动光学并且在空腔往返之前到达反射/发射装置之前切换回发送状态以输出光脉冲。在优选实施例中，可控反射/发射模块包括在激光器的输出端处的声光开关，可操作以以零级衍射级输出光脉冲。

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