公开(公告)号：US07151898B1

公开(公告)日：2006-12-19

申请号：US10338278

申请日：2003-01-08

申请人： Poh-Boon Phua ,  Hermann A. Haud

发明人： Poh-Boon Phua ,  Hermann A. Haud

IPC分类号： H04B10/18 ,  H04B10/08 ,  H04B10/12 ,  H04B10/04 ,  H04B10/06

CPC分类号： H04B10/2569

摘要： A polarization mode dispersion (PMD) feedforward compensator compensates first and second order PMD. An optical signal is provided to a PMD detector that senses first and second order PMD in the optical signal and produces control signals for the PMD compensator. The PMD compensator comprises, in series, a first polarization controller, an adjustable delay, a second polarization controller, a first fixed delay, a third polarization controller and a second fixed delay.

摘要翻译： 偏振模色散（PMD）前馈补偿器补偿第一和第二阶PMD。 向PMD检测器提供光信号，该PMD检测器感测光信号中的第一和第二阶PMD，并产生用于PMD补偿器的控制信号。 PMD补偿器串联包括第一偏振控制器，可调节延迟，第二偏振控制器，第一固定延迟，第三偏振控制器和第二固定延迟。

公开(公告)号：US20070047866A1

公开(公告)日：2007-03-01

申请号：US11210319

申请日：2005-08-24

申请人： Poh-Boon Phua ,  Erich Ippen

发明人： Poh-Boon Phua ,  Erich Ippen

IPC分类号： G02B6/00 ,  G02B27/28 ,  G02B5/30

CPC分类号： G02B6/2786 ,  G02B6/024 ,  G02B6/274 ,  G02B6/278 ,  G02B6/2934

摘要： A PMD emulator includes at least two polarization phase plates. The rotation matrix of the at two phase plates are varied to reduce the required number of phase-plates without reducing the number of birefringent segments used.

公开(公告)号：US07058102B2

公开(公告)日：2006-06-06

申请号：US09956493

申请日：2001-09-18

申请人： Poh Boon Phua ,  Kin Seng Lai ,  Rui Fen Wu ,  Yuan Liang Lim ,  Wei Pin Ernest Lau

发明人： Poh Boon Phua ,  Kin Seng Lai ,  Rui Fen Wu ,  Yuan Liang Lim ,  Wei Pin Ernest Lau

IPC分类号： H01S3/14 ,  H01S3/91 ,  H01S3/92 ,  H01S3/08

CPC分类号： H01S3/0941 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/1638 ,  H01S3/1643

摘要： A device for producing laser radiation, the device comprising: an elongate sample of a quasi-three-level laser material; a source of pumping radiation; and a concentrator configured such that at least some of the pumping radiation emitted by the source of pumping radiation is concentrated by the concentrator and subsequently enters the sample through a side surface thereof.

摘要翻译： 一种用于产生激光辐射的装置，该装置包括：准三级激光材料的细长样品; 泵送辐射源; 以及集中器，其被配置为使得由泵送辐射源发射的至少一些泵浦辐射由浓缩器集中并随后通过其侧表面进入样品。

公开(公告)号：US06996299B2

公开(公告)日：2006-02-07

申请号：US10902608

申请日：2004-07-29

申请人： Poh-Boon Phua ,  Eleanor L. Haus, legal representative ,  Erich P. Ippen

发明人： Hermann A. Haus, deceased

IPC分类号： G02B6/27 ,  G02B27/28

CPC分类号： H04B10/2569 ,  H04B2210/003

摘要： A PMD device includes a first stage that receives a signal and performs rotation about {1,0,0} on the signal. The first stage outputs a first signal. A second stage receives the first signal and performs a rotation about {0,0,1} on the first signal. The second stage outputs a second signal that represents the alignment the PMD of various frequencies into a common direction. A third stage receives the second signal and provides the necessary frequency dependent variable in the {1,0,0} direction to cancel the PMD in any specified frequency range.

摘要翻译： PMD装置包括第一级，其接收信号并在信号上执行大约{1,0,0}的旋转。 第一级输出第一信号。 第二级接收第一信号并在第一信号上执行大约{0,0,1}的旋转。 第二级将表示各种频率的PMD的对准的第二信号输出到公共方向。 第三级接收第二信号，并在{1,0,0}方向提供必要的频率相关变量，以消除任何指定频率范围内的PMD。

公开(公告)号：US06859480B2

公开(公告)日：2005-02-22

申请号：US09845945

申请日：2001-04-30

申请人： Poh Boon Phua ,  Kin Seng Lai ,  Rui Fen Wu ,  Yuan Liang Lim ,  Wei Pin Ernest Lau

发明人： Poh Boon Phua ,  Kin Seng Lai ,  Rui Fen Wu ,  Yuan Liang Lim ,  Wei Pin Ernest Lau

IPC分类号： H01S3/08 ,  H01S3/094 ,  H01S3/16 ,  H01S3/091

CPC分类号： H01S3/08 ,  H01S3/094 ,  H01S3/1616

摘要： A device for producing laser radiation having a wavelength of about 2 μm, the device comprising: a solid-state sample capable of producing lasing transitions corresponding to a wavelength of about 2 μm; and a source of pumping radiation having a wavelength of about 1 μm, the source being arranged so that at least some of the radiation produced thereby is absorbed by the solid-state sample, causing the solid-state sample to emit radiation having a wavelength of about 2 μm.

摘要翻译： 一种用于产生具有约2μm波长的激光辐射的装置，该装置包括：能够产生对应于约2μm波长的激光跃迁的固态样品; 以及具有大约1um的波长的泵浦辐射源，所述源被布置成使得由此产生的辐射中的至少一些被固态样品吸收，使得固态样品发射波长为 约2公斤

公开(公告)号：US07466878B2

公开(公告)日：2008-12-16

申请号：US11351725

申请日：2006-02-10

申请人： Poh-Boon Phua ,  Chee Wei Wong ,  Erich P. Ippen

发明人： Poh-Boon Phua ,  Chee Wei Wong ,  Erich P. Ippen

IPC分类号： G02B6/00

CPC分类号： G02B6/2766 ,  G02B5/3083 ,  G02B6/105 ,  G02B6/126 ,  G02B6/274 ,  G02B27/286 ,  G02F1/0128

摘要： A polarization controller includes a phase retarder having a rotation about an {1,0,0} axis that receives an optical signal from a waveguide structure. At least one nanoelectromechanical dielectric perturber produces ±45° birefringent axes by placing the at least one nanoelectromechanical dielectric perturber at selective positions around the phase retarder to produce dynamic change in the effective index in one of the modes existent in an extraordinary axial direction.

摘要翻译： 偏振控制器包括具有接收来自波导结构的光信号的约{1,0,0}轴旋转的相位延迟器。 至少一个纳米机电介质扰流器通过将至少一个纳米机电电介质perturber放置在相位延迟器周围的选择性位置处产生±45°双折射轴，以在非常轴向方向上存在的模式之一产生有效指数的动态变化。

公开(公告)号：US20060263001A1

公开(公告)日：2006-11-23

申请号：US11351725

申请日：2006-02-10

申请人： Poh-Boon Phua ,  Chee Wong ,  Erich Ippen

发明人： Poh-Boon Phua ,  Chee Wong ,  Erich Ippen

IPC分类号： G02B6/00

CPC分类号： G02B6/2766 ,  G02B5/3083 ,  G02B6/105 ,  G02B6/126 ,  G02B6/274 ,  G02B27/286 ,  G02F1/0128

摘要： A polarization controller includes a phase retarder having a rotation about an {1,0,0} axis that receives an optical signal from a waveguide structure. At least one nanoelectromechanical dielectric perturber produces ±45° birefringent axes by placing the at least one nanoelectromechanical dielectric perturber at selective positions around the phase retarder to produce dynamic change in the effective index in one of the modes existent in an extraordinary axial direction.

摘要翻译： 偏振控制器包括具有接收来自波导结构的光信号的约{1,0,0}轴旋转的相位延迟器。 至少一个纳米机电介质扰流器通过将至少一个纳米机电电介质perturber放置在相位延迟器周围的选择性位置处产生±45°双折射轴，以在非常轴向方向上存在的模式之一产生有效指数的动态变化。

公开(公告)号：US06912328B2

公开(公告)日：2005-06-28

申请号：US10263778

申请日：2002-10-04

申请人： Poh-Boon Phua ,  John M. Fini

发明人： Poh-Boon Phua ,  John M. Fini

IPC分类号： G01M11/00 ,  G02B6/27 ,  G02B6/34 ,  H04B10/08 ,  H04B10/18 ,  G02B6/00 ,  G01N21/00

CPC分类号： G02B6/278 ,  G01M11/331 ,  G01M11/336 ,  H04B10/07951 ,  H04B10/2569

摘要： In optical media (e.g., an optical fiber) having first and second order polarization mode dispersion, the relationship between the polarization mode dispersion and the change in the measured averaged state of polarization of an optical signal in the media as a function of the signal's bandwidth can be predictable. Accordingly, first and second order polarization can be determined by measuring a series of the averaged state of polarization's for an optical signal with varying signal bandwidths.

摘要翻译： 在具有第一和第二阶偏振模色散的光学介质（例如，光纤）中，偏振模色散与介质中光信号的测量的平均平均状态的变化之间的关系作为信号带宽的函数 可以预测。 因此，可以通过测量具有变化的信号带宽的光信号的偏振平均状态的一系列来确定一阶和二阶偏振。

公开(公告)号：US20050044116A1

公开(公告)日：2005-02-24

申请号：US10902608

申请日：2004-07-29

申请人： Poh-Boon Phua ,  Hermann Haus ,  Eleanor Haus ,  Erich Ippen

发明人： Poh-Boon Phua ,  Hermann Haus ,  Eleanor Haus ,  Erich Ippen

IPC分类号： H04B10/18 ,  G06F7/00

CPC分类号： H04B10/2569 ,  H04B2210/003

摘要： A PMD device includes a first stage that receives a signal and performs rotation about {1,0,0} on the signal. The first stage outputs a first signal. A second stage receives the first signal and performs a rotation about {0,0,1 } on the first signal. The second stage outputs a second signal that represents the alignment the PMD of various frequencies into a common direction. A third stage receives the second signal and provides the necessary frequency dependent variable in the {1,0,0} direction to cancel the PMD in any specified frequency range.

摘要翻译： PMD装置包括第一级，其接收信号并在信号上执行大约{1,0,0}的旋转。 第一级输出第一信号。 第二级接收第一信号并在第一信号上执行大约{0,0,1}的旋转。 第二级将表示各种频率的PMD的对准的第二信号输出到公共方向。 第三级接收第二信号，并在{1,0,0}方向提供必要的频率相关变量，以消除任何指定频率范围内的PMD。

公开(公告)号：US08621931B2

公开(公告)日：2014-01-07

申请号：US13069281

申请日：2011-03-22

申请人： Poh Boon Phua ,  Yu Fu

发明人： Poh Boon Phua ,  Yu Fu

IPC分类号： G01N29/04 ,  G01B9/02

CPC分类号： G01H9/00

摘要： A laser vibrometer makes non-contact measurements of vibrations of a target. A laser produces a laser beam, and a beamsplitter splits the laser beam into a reference beam and a first target beam. A first frequency shifter/splitter splits the first target beam into a pair of target beams each having a frequency different than a frequency of the other target beams. The target beams are reflected from the target to a detector, and the reference beam is combined with the target beams such that the detector receives the target beams and reference beam together.

摘要翻译： 激光测振仪对目标的振动进行非接触式测量。 激光产生激光束，分束器将激光束分成参考光束和第一目标光束。 第一移频器/分离器将第一目标光束分成一对目标光束，每个目标光束的频率不同于其他目标光束的频率。 目标光束从目标反射到检测器，并且参考光束与目标光束组合，使得检测器将目标光束和参考光束一起接收。