公开(公告)号：US07146083B2

公开(公告)日：2006-12-05

申请号：US10813161

申请日：2004-03-31

Applicant: Charles D. Carr

Inventor： Charles D. Carr

IPC: G02B6/26

CPC classification number: G02B7/003

Abstract: An alignment apparatus for optical components includes chemically co-etched parts which may be assembled with high tolerances and in a repeatable manner. The resulting construction, together with a translatable stage and/or a micrometer, allows for rapid and extremely precise alignment of the mounted optics.

Abstract translation: 用于光学部件的对准装置包括化学共蚀刻部件，其可以以高公差和可重复的方式组装。 所得到的结构以及可平移台和/或千分尺允许安装的光学器件的快速且极其精确的对准。

公开(公告)号：US20050226287A1

公开(公告)日：2005-10-13

申请号：US10813269

申请日：2004-03-31

Applicant: Lawrence Shah ,  James Bovatsek ,  Alan Arai ,  Tadashi Yamamoto ,  Rajesh Patel ,  Donald Harter

Inventor： Lawrence Shah ,  James Bovatsek ,  Alan Arai ,  Tadashi Yamamoto ,  Rajesh Patel ,  Donald Harter

IPC: G01J11/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/10 ,  H01S3/102 ,  H01S3/109 ,  H01S3/13 ,  H01S3/16 ,  H01S3/23

CPC classification number: H01S3/10038 ,  G01J11/00 ,  H01S3/0014 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/10023 ,  H01S3/10061 ,  H01S3/102 ,  H01S3/1024 ,  H01S3/108 ,  H01S3/109 ,  H01S3/1305 ,  H01S3/1618

Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.

Abstract translation: 飞秒激光激光处理系统，具有飞秒激光，变频光学，光束操纵光学，目标运动控制，处理室，诊断系统和系统控制模块。 基于飞秒激光的激光加工系统允许在微加工中利用独特的热控制，并且该系统具有更大的输出光束稳定性，连续可变的重复率和独特的时间波束整形能力。

公开(公告)号：US06954575B2

公开(公告)日：2005-10-11

申请号：US09809248

申请日：2001-03-16

Applicant: Martin Fermann ,  Donald J. Harter

Inventor： Martin Fermann ,  Donald J. Harter

IPC: G02B6/02 ,  G02B6/024 ,  G02B6/036 ,  G02B6/44 ,  H01S3/06 ,  H01S3/067 ,  H01S3/098 ,  H01S3/10

CPC classification number: H01S3/06708 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/094019 ,  H01S3/1118

Abstract: A novel polarization maintaining optical fiber, which can be used as a high-power polarization maintaining fiber laser or amplifier, is described. Insensitivity of the polarization state to external fiber bending and temperature changes is accomplished by minimizing polarization mode-coupling via reducing stresses inside the fiber core via increasing the fiber diameter. Alternatively, polarization mode-coupling can be minimized by an optimization of the fiber coating to minimize stresses at the interface between the fiber and the coating. As a result insensitivity to polarization mode-coupling is obtained at greatly reduced values of birefringence compared to small-diameter fibers. The fiber is of significant use in any application where polarization stability is important, and will be useful in telecommunications applications in particular for reducing polarization mode dispersion. An implementation in a parabolic pulse-producing fiber laser is also described as one specific high power example.

Abstract translation: 描述了可用作高功率偏振维持光纤激光器或放大器的新型偏振保持光纤。 极化状态对外部纤维弯曲和温度变化的不敏感性是通过通过增加纤维直径来减小纤维芯内的应力来最小化偏振模耦合来实现的。 或者，可以通过纤维涂层的优化来最小化极化模式耦合，以使纤维和涂层之间的界面处的应力最小化。 结果，与小直径纤维相比，在双折射值大大降低的情况下获得了偏振模耦合的不敏感性。 该光纤在极化稳定性很重要的任何应用中都是非常有用的，并且在电信应用中特别用于降低偏振模色散是有用的。 抛物线脉冲产生光纤激光器中的实现也被描述为一个特定的高功率示例。

公开(公告)号：US20050163426A1

公开(公告)日：2005-07-28

申请号：US11074765

申请日：2005-03-09

Applicant: Martin Fermann ,  Almantas Galvanauskas ,  Donald Harter

Inventor： Martin Fermann ,  Almantas Galvanauskas ,  Donald Harter

IPC: G02B6/02 ,  G02F1/35 ,  G02F1/37 ,  H01S3/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S3/30 ,  G02B6/34

CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094019 ,  H01S3/094042 ,  H01S3/109 ,  H01S3/1112 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/302

Abstract: A modular, compact and widely tunable laser system for the efficient generation of high peak and high average power ultrashort pulses. Modularity is ensured by the implementation of interchangeable amplifier components. System compactness is ensured by employing efficient fiber amplifiers, directly or indirectly pumped by diode lasers. Peak power handling capability of the fiber amplifiers is expanded by using optimized pulse shapes, as well as dispersively broadened pulses. Dispersive broadening is introduced by dispersive pulse stretching in the presence of self-phase modulation and gain, resulting in the formation of high-power parabolic pulses. In addition, dispersive broadening is also introduced by simple fiber delay lines or chirped fiber gratings, resulting in a further increase of the energy handling ability of the fiber amplifiers. The phase of the pulses in the dispersive delay line is controlled to quartic order by the use of fibers with varying amounts of waveguide dispersion or by controlling the chirp of the fiber gratings. After amplification, the dispersively stretched pulses can be re-compressed to nearly their bandwidth limit by the implementation of another set of dispersive delay lines. To ensure a wide tunability of the whole system, Raman-shifting of the compact sources of ultrashort pulses in conjunction with frequency-conversion in nonlinear optical crystals can be implemented, or an Anti-Stokes fiber in conjunction with fiber amplifiers and Raman-shifters are used. A particularly compact implementation of the whole system uses fiber oscillators in conjunction with fiber amplifiers. Additionally, long, distributed, positive dispersion optical amplifiers are used to improve transmission characteristics of an optical communication system. Finally, an optical communication system utilizes a Raman amplifier fiber pumped by a train of Raman-shifted, wavelength-tunable pump pulses, to thereby amplify an optical signal which counterpropogates within the Raman amplifier fiber with respect to the pump pulses.

公开(公告)号：US6148503A

公开(公告)日：2000-11-21

申请号：US282390

申请日：1999-03-31

Applicant: Frank M. Delnick ,  Shoichi Doi ,  Shigenobu Denzumi

Inventor： Frank M. Delnick ,  Shoichi Doi ,  Shigenobu Denzumi

IPC: H01M2/16 ,  H01M10/0525 ,  H01M6/00

CPC classification number: H01M2/1673 ,  H01M4/02 ,  H01M10/0525 ,  H01M2/164 ,  Y10T29/49108 ,  Y10T29/49114

Abstract: A method of forming a porous composite separator layer for an electrochemical cell comprising the steps of printing a thin layer of a separator precursor solution on the surface of one of the electrochemical cell electrodes, curing the thin layer of separator precursor solution so that it transforms into a microporous composite separator structure. In the preferred embodiment, the separator precursor solution is formulated as an ink comprising a silica aerogel filler material dispersed in a solution of chlorinated polyolefin binder which is dissolved in a suitable solvent. The process allows the manufacture of thin and flexible composite separators which are conformally bonded to the underlying electrodes.

Abstract translation: 一种形成用于电化学电池的多孔复合隔离层的方法，包括以下步骤：在一个电化学电池电极的表面上印刷隔板前体溶液的薄层，固化隔膜前体溶液的薄层，使其转变成 微孔复合隔板结构。 在优选的实施方案中，分离器前体溶液配制成包含分散在溶解在合适溶剂中的氯化聚烯烃粘合剂溶液中的二氧化硅气凝胶填料的油墨。 该方法允许制造薄且柔性的复合分离器，其被共形结合到下面的电极。

公开(公告)号：US6075331A

公开(公告)日：2000-06-13

申请号：US34707

申请日：1993-03-18

Applicant: Masao Ando ,  Andrew A. Frank

Inventor： Masao Ando ,  Andrew A. Frank

IPC: B60K1/04 ,  H02J7/34 ,  H02P3/00

CPC classification number: H02J7/345 ,  Y10S388/92

Abstract: An energy management system for optimizing low power and short term high power states of a power supply system. A significant feature of the present invention relates to a design of a power supply apparatus based on internal resistances of the power supply components. In an exemplary embodiment, the power supply supplies power for driving a load. The power supply includes a power source having a first internal resistance and includes a capacitor connected in parallel with the power supply and having a second internal resistance. The first internal resistance and the second internal resistance have a predetermined relationship.

Abstract translation: 一种用于优化供电系统的低功率和短期高功率状态的能量管理系统。 本发明的重要特征涉及基于电源部件的内部电阻的电源装置的设计。 在示例性实施例中，电源提供用于驱动负载的电力。 电源包括具有第一内部电阻的电源，并且包括与电源并联连接并具有第二内部电阻的电容器。 第一内部电阻和第二内部电阻具有预定的关系。

公开(公告)号：US5818630A

公开(公告)日：1998-10-06

申请号：US882349

申请日：1997-06-25

Applicant: Martin E. Fermann ,  Donald J. Harter

Inventor： Martin E. Fermann ,  Donald J. Harter

IPC: H01S3/10 ,  G02F1/37 ,  H01S3/06 ,  H01S3/067 ,  H01S3/08 ,  H01S3/094 ,  H01S3/23 ,  H04B10/02 ,  H04B10/18

CPC classification number: H01S3/067 ,  G02F1/37 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/08022 ,  H01S3/094003 ,  H01S3/235

Abstract: To amplify and compress optical pulses in a multi-mode (MM) optical fiber, a single-mode is launched into the MM fiber by matching the modal profile of the fundamental mode of the MM fiber with a diffraction-limited optical mode at the launch end. The fundamental mode is preserved in the MM fiber by minimizing mode-coupling by using relatively short lengths of step-index MM fibers with a few hundred modes and by minimizing fiber perturbations. Doping is confined to the center of the fiber core to preferentially amplify the fundamental mode, to reduce amplified spontaneous emission and to allow gain-guiding of the fundamental mode. Gain-guiding allows for the design of systems with length-dependent and power-dependent diameters of the fundamental mode. To allow pumping with high-power laser diodes, a double-clad amplifier structure is employed. For applications in nonlinear pulse-compression, self phase modulation and dispersion in the optical fibers can be exploited. High-power optical pulses may be linearly compressed using bulk optics dispersive delay lines or by chirped fiber Bragg gratings written directly into the SM or MM optical fiber. High-power cw lasers operating in a single near-diffraction-limited mode may be constructed from MM fibers by incorporating effective mode-filters into the laser cavity. Regenerative fiber amplifiers may be constructed from MM fibers by careful control of the recirculating mode. Higher-power Q-switched fiber lasers may be constructed by exploiting the large energy stored in MM fiber amplifiers.

Abstract translation: 为了在多模（MM）光纤中放大和压缩光脉冲，通过在发射时匹配MM光纤的基本模式与衍射极限光学模式的模式，将单模发射到MM光纤中 结束。 通过使用具有几百种模式的相对较短长度的步进折射率MM纤维和通过最小化纤维扰动来最小化模式耦合，在MM光纤中保持基本模式。 掺杂被限制在光纤芯的中心以优先放大基模，以减少放大的自发发射并允许基模的增益引导。 增益引导允许设计具有基本模式的长度相关性和功率依赖直径的系统。 为了允许使用高功率激光二极管进行泵浦，采用双包层放大器结构。 对于非线性脉冲压缩应用，可以利用光纤中的自相位调制和色散。 高功率光脉冲可以使用体光学色散延迟线或直接写入SM或MM光纤的啁啾光纤布拉格光栅进行线性压缩。 通过将有效的模式滤波器结合到激光腔中，可以通过MM光纤构造以单个近衍射限制模式操作的大功率cw激光器。 再生纤维放大器可以通过仔细控制再循环模式由MM纤维构成。 高功率Q开关光纤激光器可以通过利用存储在MM光纤放大器中的大能量来构造。

公开(公告)号：US5585913A

公开(公告)日：1996-12-17

申请号：US221516

申请日：1994-04-01

Applicant: Anand Hariharan ,  Donald J. Harter

Inventor： Anand Hariharan ,  Donald J. Harter

IPC: H01S3/10 ,  G01P3/80 ,  G01R13/34 ,  G01S7/48 ,  G01S7/484 ,  G01S7/486 ,  G01S17/10 ,  G01S17/50 ,  H01S3/06 ,  H01S3/23 ,  G01B9/02

CPC classification number: H01S3/2383 ,  G01P3/806 ,  G01R13/347 ,  G01S17/107 ,  G01S17/50 ,  G01S7/484 ,  G01S7/486

Abstract: An optical correlator is disclosed which, in combination with an ultrafast optical pulsed source, can be used for estimating distances of objects with submicron precision. The system includes at least one ultrafast pulsed laser source feeding into an amplitude-division device, an entity for launching pulsed radiation at the target along with an entity for collecting the radiation scattered or reflected off the surface of the object, a nonlinear device for timegating the collected signal with the amplitude-divided source, and a detection device for observing the timegated signal.

Abstract translation: 公开了一种光学相关器，其与超快速光学脉冲源组合，可用于估计具有亚微米精度的物体的距离。 该系统包括至少一个超快速脉冲激光源，其馈送到幅度分割装置中，用于在目标处发射脉冲辐射的实体以及用于收集从物体表面散射或反射的辐射的实体，用于延时的非线性装置 具有分频源的收集信号，以及用于观察时间信号的检测装置。

公开(公告)号：US5440573A

公开(公告)日：1995-08-08

申请号：US215579

申请日：1994-03-22

Applicant: Martin E. Fermann

Inventor： Martin E. Fermann

IPC: G02F1/35 ,  H01S3/06 ,  H01S3/067 ,  H01S3/08 ,  H01S3/098

CPC classification number: H01S3/1112 ,  H01S3/067 ,  H01S2301/085 ,  H01S3/06712

Abstract: The present invention is generally directed to a laser, such as a soliton fiber laser, having an emission wavelength controlled by non-linear effects. Although the emission wavelength of such lasers is typically limited to the center of the gain profile, exemplary embodiments of the present invention provide relatively broad bandwidth control by producing significant gain-pulling using non-linear effects. Any non-linear effects in a laser cavity can be used to provide significant gain pulling and a broadband wavelength tuning range including, for example, the soliton self-frequency shift (SSFS) and cross-phase modulation (CPM). As a result, non-linear tuning can be achieved. Exemplary embodiments provide gain-pulling which allows a significant separation to be induced between the peak emission wavelength of the modelocked fiber laser (i.e., the modelocked emission wavelength, or MLEW) and the emission wavelength of the non-modelocked laser (i.e., the continuous wave emission wavelength, or CWEW).

Abstract translation: 本发明一般涉及具有由非线性效应控制的发射波长的激光器，例如孤子光纤激光器。 尽管这种激光器的发射波长通常被限制在增益曲线的中心，但是本发明的示例性实施例通过使用非线性效应产生显着的增益提供相对宽的带宽控制。 可以使用激光腔中的任何非线性效应来提供显着的增益拉动和宽带波长调谐范围，包括例如孤子自变频（SSFS）和交叉相位调制（CPM）。 结果，可以实现非线性调谐。 示例性实施例提供增益拉动，其允许在锁模光纤激光器的峰值发射波长（即，锁模发射波长或MLEW）和非模式锁定激光器的发射波长（即，连续的 波发射波长或CWEW）。

公开(公告)号：US5388658A

公开(公告)日：1995-02-14

申请号：US801364

申请日：1991-12-02

Applicant: Masao Ando ,  Donald L. Margolis

Inventor： Masao Ando ,  Donald L. Margolis

IPC: B60K23/08 ,  B62D6/04 ,  B60K17/34

CPC classification number: B62D6/04 ,  B60K23/0808

Abstract: In a preferred embodiment, the present invention relates to automatic vehicle control systems for controlling individual wheel torque and steering angle. Control is provided in response to desired forward velocity, desired steering angle, actual angular velocities of each controlled wheel, actual vehicle yaw rate, and actual vehicle lateral acceleration. A command processor uses desired forward speed, desired steering angle, and lateral acceleration to compute command angular velocities for each drive wheel and the commanded vehicle yaw rate. Further, the command signal processor monitors a tire adhesion limit. If this limit is exceeded, command signal will be reduced.

Abstract translation: 在优选实施例中，本发明涉及用于控制各个车轮转矩和转向角的自动车辆控制系统。 响应于期望的前进速度，期望的转向角度，每个受控轮的实际角速度，实际车辆横摆角速度和实际车辆横向加速度来提供控制。 命令处理器使用期望的前进速度，期望的转向角和横向加速度来计算每个驱动轮的指令角速度和指令的车辆横摆角速度。 此外，命令信号处理器监视轮胎附着极限。 如果超出此限制，则命令信号将被减少。