公开(公告)号：US08139910B2

公开(公告)日：2012-03-20

申请号：US12259176

申请日：2008-10-27

申请人： Andrew D. Stadler ,  David Goldman ,  Mark Farley ,  Michael M. Mielke ,  Kyungbum Kim ,  Laurent Vaissié ,  Robert G. Waarts ,  Michael J. Cumbo

发明人： Andrew D. Stadler ,  David Goldman ,  Mark Farley ,  Michael M. Mielke ,  Kyungbum Kim ,  Laurent Vaissié ,  Robert G. Waarts ,  Michael J. Cumbo

IPC分类号： G02B6/34 ,  G02B5/18

CPC分类号： H01S3/0057 ,  G02B6/2706 ,  G02B6/2931 ,  G02B6/2932 ,  H01S3/083 ,  H01S3/235

摘要： A method of controlling an ultra-short pulse system is described comprising controlling an optical power within the ultra-short pulse system and control-system controlling a width of an optical pulse. In some embodiments, the method also comprises tuning a compressor by controlling a number of passes of the optical pulse through a Bragg grating to control the width of the optical pulse output from the compressor. In other embodiments, the method may comprise tuning a multi-pass stretcher by controlling a number of passes of the optical pulse through a loop of the multi-pass stretcher to control the width of the optical pulse output from the multi-pass stretcher. A method of controlling an ultra-short pulse system may also comprise accessing a control system from a remotely located command station, communicating status information from the control system to the command station, and communicating information from the command station to the control system.

摘要翻译： 描述了一种控制超短脉冲系统的方法，包括控制超短脉冲系统内的光功率和控制光脉冲宽度的控制系统。 在一些实施例中，该方法还包括通过控制通过布拉格光栅的光脉冲的通过次数来调节压缩器，以控制从压缩机输出的光脉冲的宽度。 在其他实施例中，该方法可以包括通过控制多通道担架的环路来控制光脉冲的通过次数来调整多通道担架，以控制从多通道担架输出的光脉冲的宽度。 控制超短脉冲系统的方法还可以包括从远程定位的命令站访问控制系统，将状态信息从控制系统传送到命令站，以及将信息从命令站传送到控制系统。

公开(公告)号：US08125704B2

公开(公告)日：2012-02-28

申请号：US12229043

申请日：2008-08-18

申请人： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

发明人： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

IPC分类号： H04B10/17

CPC分类号： H01S3/0057 ,  H01S3/06754 ,  H01S3/10046 ,  H01S3/10061 ,  H01S3/1302 ,  H01S3/2308 ,  H01S3/2383 ,  H01S2301/02

摘要： An ultra-short pulsed laser system comprises an optical combiner, optical amplifier, optical pulse compressor, and optical separator. The optical combiner is configured to combine a primary optical pulse with a secondary optical signal to generate a combined optical signal. The primary optical pulse and the secondary optical signal have a distinguishable characteristic. The optical amplifier is configured to optically amplify the combined optical signal. The optical pulse compressor is configured to compress at least the primary optical pulse contained within the optically amplified combined optical signal and output a compressed combined optical signal. The optical separator is configured to separate the compressed combined optical signal into an output primary optical pulse and an output secondary optical signal according to the distinguishable characteristic.

摘要翻译： 超短脉冲激光系统包括光学组合器，光放大器，光脉冲压缩器和光分离器。 光组合器被配置为将初级光脉冲与次光信号组合以产生组合的光信号。 主光脉冲和次光信号具有可区分的特性。 光放大器被配置为光学放大组合的光信号。 光脉冲压缩器被配置为至少压缩光放大组合光信号中包含的主光脉冲，并输出压缩的组合光信号。 光分离器被配置为根据可区分的特性将压缩的组合光信号分离成输出主光脉冲和输出次光信号。

公开(公告)号：US20100118900A1

公开(公告)日：2010-05-13

申请号：US12291919

申请日：2008-11-13

申请人： Robert G. Waarts ,  Gregory J.R. Spooner

发明人： Robert G. Waarts ,  Gregory J.R. Spooner

IPC分类号： H01S3/10

CPC分类号： H01S3/0057 ,  H01S3/06754 ,  H01S3/1305 ,  H01S3/2325 ,  H01S5/50 ,  H01S2301/02

摘要： Exemplary systems and methods are directed toward the creation of packets of light. A packet contains one or more pulses of light. In some embodiments, the packet may contain two, ten, 100, 1000, 1E6, or more pulses of light. The packet may be characterized by many of the same properties that are used to describe pulses, such as packet energy, packet width, packet power, packet period (for a periodic series of packets), and peak power of the packet. Packets may also be characterized by other properties describing their shapes. These properties may be described or defined by mathematical functions when the packets have complicated shapes.

摘要翻译： 示例性的系统和方法针对光分组的创建。 分组包含一个或多个光脉冲。 在一些实施例中，分组可以包含两个，10,100,1000,1E6或更多个光脉冲。 分组的特征可以在于用于描述诸如分组能量，分组宽度，分组功率，分组周期（对于周期性分组）的脉冲的许多相同的属性以及分组的峰值功率。 数据包也可以通过描述其形状的其他属性来表征。 当数据包具有复杂的形状时，可以通过数学函数描述或定义这些属性。

公开(公告)号：US20090273828A1

公开(公告)日：2009-11-05

申请号：US12150887

申请日：2008-04-30

申请人： Robert G. Waarts ,  Timothy J. Booth

发明人： Robert G. Waarts ,  Timothy J. Booth

IPC分类号： H01S3/00

CPC分类号： H01S3/0057 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/2325 ,  H01S3/2383

摘要： The present invention includes an apparatus and the method to scale the average power from high power ultra-short pulsed lasers, while at the same time addressing the issue of effective beam delivery and ablation, by use of an optical amplification system.

摘要翻译： 本发明包括通过使用光放大系统来缩小来自大功率超短脉冲激光器的平均功率的装置和方法，同时解决了有效的光束传递和消融的问题。

公开(公告)号：US07444049B1

公开(公告)日：2008-10-28

申请号：US11615883

申请日：2006-12-22

申请人： Kyungbum Kim ,  Laurent Vaissié ,  Robert G. Waarts ,  Andrew Stadler ,  Michael J. Cumbo

发明人： Kyungbum Kim ,  Laurent Vaissié ,  Robert G. Waarts ,  Andrew Stadler ,  Michael J. Cumbo

IPC分类号： G02B6/34 ,  G02B5/18

CPC分类号： H01S3/0057 ,  G02B6/2706 ,  G02B6/2931 ,  G02B6/2932 ,  H01S3/083 ,  H01S3/235

摘要： A chirped pulse amplification (CPA) system and method is described wherein the pulse is stretched using multiple passes through a Bragg grating or compressed using multiple passes through a Bragg grating. A switch may be used to control the number of passes through the Bragg grating, thus, tuning the compressed or the stretched pulse width. The pulse may be directed through an amplifier between the multiple passes through the Bragg grating to apply amplification to the stretched pulse multiple times. The Bragg grating may include a fiber Bragg grating, a volume Bragg grating, or a Bragg waveguide.

摘要翻译： 描述了一种啁啾脉冲放大（CPA）系统和方法，其中使用多遍通过布拉格光栅进行脉冲拉伸或使用多次穿过布拉格光栅进行压缩。 可以使用开关来控制通过布拉格光栅的通过次数，从而调谐压缩或拉伸的脉冲宽度。 脉冲可以通过布拉格光栅的多遍之间的放大器引导，以对扩展的脉冲进行多次放大。 布拉格光栅可以包括光纤布拉格光栅，体积布拉格光栅或布拉格波导。

公开(公告)号：US07203428B2

公开(公告)日：2007-04-10

申请号：US10458070

申请日：2003-06-10

申请人： Robert G. Waarts ,  Russell Chipman

发明人： Robert G. Waarts ,  Russell Chipman

IPC分类号： H04B10/06

CPC分类号： H04B10/2569

摘要： The invention relates to the monitoring of polarization mode dispersion (PMD) using heterodyne detection for providing PMD compensation in optical networks, and an apparatus for monitoring PMD. In the present invention, a broadband PMD monitor is disclosed based on heterodyne detection with a tunable laser source which can be fed to a compensator such as an add/drop or other wavelength switch and polarization dependent attenuation means. A signal from a local oscillator is combined with an optical signal and the beat frequency amplitude and phase is analyzed for two orthogonal polarization states simultaneously to obtain a state of polarization. By averaging a plurality of polarization states within a channel, PMD can be estimated for compensation.

摘要翻译： 本发明涉及使用外差检测在光网络中提供PMD补偿的偏振模色散（PMD）的监测，以及用于监视PMD的装置。 在本发明中，公开了一种基于外差检测的宽带PMD监视器，其中可调谐激光源可以被馈送到诸如分插或其他波长开关和偏振相关衰减装置之类的补偿器。 来自本地振荡器的信号与光信号组合，同时分析拍频的振幅和相位两个正交极化状态以获得偏振状态。 通过平均信道内的多个极化状态，可以估计PMD用于补偿。

公开(公告)号：US06996140B2

公开(公告)日：2006-02-07

申请号：US10742959

申请日：2003-12-22

申请人： Robert G. Waarts ,  Nigel Copner

发明人： Robert G. Waarts ,  Nigel Copner

IPC分类号： H01S3/10 ,  H01S3/04

CPC分类号： H01S5/146 ,  G02F1/377 ,  G02F2001/3548 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/028 ,  H01S5/065 ,  H01S5/1039 ,  H01S5/1096 ,  H01S5/141

摘要： A laser apparatus for nonlinear conversion of light is disclosed utilizing a laser diode having a reflective back facet and a front facet having a reflectance of less than about 1% for emitting a multifrequency optical beam, and a nonlinear optical element for receiving the multifrequency optical beam and for generating a frequency-converted radiation. An external frequency-selective reflector is provided for power and spectral stabilization of the multifrequency optical beam, and for confining its optical spectrum within a bandwidth of efficient nonlinear conversion in the nonlinear optical element. The laser diode reflective back facet and the external frequency-selective reflector form an extended laser cavity. In operation, the multifrequency optical beam contains a plurality of longitudinal modes of the extended laser cavity which are confined within the frequency conversion bandwidth of the nonlinear element. The external frequency-selective reflector may comprise a waveguiding element such as a single-mode fiber incorporating a Bragg grating, and may also comprise a Fabry-Perot etalon.

摘要翻译： 公开了一种用于光的非线性转换的激光装置，其具有具有反射性背面和反射率小于约1％的用于发射多频光束的前分面的激光二极管，以及用于接收多频光束的非线性光学元件 并用于产生频率转换的辐射。 提供外部频率选择反射器用于多频光束的功率和频谱稳定，并且用于将其光谱限制在非线性光学元件中的有效非线性转换的带宽内。 激光二极管反射背面和外部频率选择反射器形成延伸的激光腔。 在操作中，多频光束包含被限制在非线性元件的频率转换带宽内的多个延伸激光腔的纵向模式。 外部频率选择性反射器可以包括诸如包含布拉格光栅的单模光纤的波导元件，并且还可以包括法布里 - 珀罗标准具。

公开(公告)号：US06477295B1

公开(公告)日：2002-11-05

申请号：US09488166

申请日：2000-01-20

申请人： Robert J. Lang ,  Robert G. Waarts ,  Ian J. Booth ,  David M. Giltner ,  Steven Sanders

发明人： Robert J. Lang ,  Robert G. Waarts ,  Ian J. Booth ,  David M. Giltner ,  Steven Sanders

IPC分类号： G02B626

CPC分类号： G02B6/2848 ,  G02B6/02042 ,  G02B6/03633 ,  G02B6/2817 ,  G02B6/2852 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094019

摘要： Apparatus for coupling light into a fiber, such as a double clad fiber (DCF) having a core having a refractive index n1, surrounded by an inner cladding having refractive index n2 which is surrounded by an outer cladding having a refractive index n3, where n1>n2>n3. An optical coupler medium, referred to as a Fiber Space Division Multiplexor or FSDM, is formed on an exposed portion of the fiber inner cladding at a position along the length of the fiber without interfering with the continuity of its core and provides at, at least one position, the imaging of light external of the fiber into the inner cladding interface and its waveguiding with the inner cladding of the fiber. The FSDM coupler comprises an optical material in optical contact or integrated with the inner cladding and having a refractive index substantially equal to n2. The coupler medium may also be employed with a fiber having no core and where the inner cladding would function as a multimode core. Also, disclosed are formed reflectors for reflecting back residual, unabsorbed pump light backward into the DCF inner cladding for absorption within the core doped with a rare earth active material. Other embodiments provided for the removal of pump light from the DCF inner cladding.

摘要翻译： 用于将光耦合到光纤中的装置，例如具有折射率为n1的芯的双包层光纤（DCF），由具有折射率n3的外包层围绕的具有折射率n2的内包层围绕，其中n1 > n2> n3。 称为光纤空间分割多路复用器或FSDM的光耦合器介质在纤维内包层的沿着光纤长度的位置的暴露部分上形成，而不干扰其芯的连续性，并至少提供 一个位置，将光纤的外部成像到内包层界面中，并且其与纤维的内包层的波导成像。 FSDM耦合器包括光学接触的光学材料或与内部包层整体并具有基本上等于n2的折射率。 耦合介质也可以与不具有芯的纤维一起使用，并且内包层将用作多模芯。 此外，公开了反射器，用于将残留的未吸收的泵浦光反射回到DCF内包层中，用于在掺杂有稀土活性材料的芯内吸收。 提供用于从DCF内包层去除泵浦光的其它实施例。

公开(公告)号：US06330257B1

公开(公告)日：2001-12-11

申请号：US09368398

申请日：1999-08-04

申请人： Jo S. Major, Jr. ,  Garnet Luick ,  Ian J. Booth ,  David C. Dawson ,  Fritz Christo ,  Robert G. Waarts

发明人： Jo S. Major, Jr. ,  Garnet Luick ,  Ian J. Booth ,  David C. Dawson ,  Fritz Christo ,  Robert G. Waarts

IPC分类号： H01S514

CPC分类号： H01S5/146 ,  H01S5/0656

摘要： The effectiveness of reflected light to stabilize the operational characteristics of a semiconductor diode laser varies with the polarization orientation of the reflected light. Stabilization failure can occur if the polarization orientation of the reflected light is orthogonal to the polarization of the light emitted by the laser source. The use of multiple reflectors can reduce the probability of stabilization failure by arranging the reflectors to return to the laser source portions of light having polarization orientations that are statistically independent with respect to each other.

摘要翻译： 用于稳定半导体二极管激光器的操作特性的反射光的有效性随反射光的偏振取向而变化。 如果反射光的偏振方向与激光源发出的光的偏振正交，就会发生稳定失效。 使用多个反射器可以通过布置反射器返回具有相对于彼此统计学独立的偏振取向的光的激光源部分来降低稳定化失败的可能性。

公开(公告)号：US5033054A

公开(公告)日：1991-07-16

申请号：US568942

申请日：1990-08-17

申请人： Donald R. Scifres ,  Richard R. Craig ,  Robert G. Waarts

发明人： Donald R. Scifres ,  Richard R. Craig ,  Robert G. Waarts

IPC分类号： H01S3/10 ,  H01S5/14 ,  H01S5/42

CPC分类号： H01S5/42 ,  H01S3/10076 ,  H01S5/148

摘要： A laser having a phase conjugating reflector positioned with a resonant cavity of a laser configuration capable of multimode operation. The resonant cavity or other means associated with the laser configuration selects the preferred mode at threshold. The phase conjugating material builds up reflectivity as the light intensity is increased above threshold power levels to maintain the selected mode to high power levels. One embodiment has an external Talbot cavity with a first mirror in a Talbot plane of a multi-emitter laser array and with the phase conjugating material at a sub-Talbot plane. Another embodiment has an external GRIN lens cavity with a far field apertured stripe mirror for threshold mode selection. The phase conjugator is placed at a high light intensity position within the cavity such as adjacent to the stripe mirror or adjacent to the laser array. The laser source may be a linear laser diode array or a 2-D surface emitting laser array. An additionl embodiment uses a diode-array-pumped solid state laser medium together with a phase conjugator between the cavity mirrors.

摘要翻译： 一种具有相位共轭反射器的激光器，其具有能够进行多模操作的激光器配置的谐振腔。 与激光配置相关联的谐振腔或其它装置在阈值处选择优选模式。 当光强度增加到阈值功率水平以上以使所选择的模式保持在高功率水平时，相位共轭材料建立反射率。 一个实施例具有外部Talbot腔，其具有在多发射体激光器阵列的Talbot平面中的第一反射镜，并且相位共轭材料在次Talbot平面处。 另一个实施例具有用于阈值模式选择的具有远场有孔条形反射镜的外部GRIN透镜腔。 相位共轭器被放置在空腔内的高光强位置，例如邻近条形反射镜或与激光阵列相邻。 激光源可以是线性激光二极管阵列或2-D表面发射激光器阵列。 添加实施例使用二极管阵列泵浦固态激光介质以及腔镜之间的相位共轭器。