公开(公告)号：US07099356B2

公开(公告)日：2006-08-29

申请号：US10440600

申请日：2003-05-19

申请人： Hiroshi Komine ,  James G. Ho ,  Hagop Injeyan ,  Stephen J. Brosnan

发明人： Hiroshi Komine ,  James G. Ho ,  Hagop Injeyan ,  Stephen J. Brosnan

IPC分类号： H01S3/098

CPC分类号： H01S3/10092

摘要： A method is provided for seeding laser system (10) for single longitudinal mode oscillation. The method includes coupling laser system (10) to be seeded for single mode output to a seed laser radiation source (12). Next, the frequency capture range (44) and spacing (46) of the axial modes (42) of the cavity (24) of the laser system (10) are determined. A seed spectrum (36) is then generated from the seed laser radiation source (12) with a bandwidth (40) corresponding to the axial mode spacing (46). The seed spectrum (36) includes a comb of discrete frequency components (38) with one or more of the discrete frequency components (38) being within the frequency capture range (44) of at least one of the axial modes (42). The seed spectrum (36) is then injected into the cavity (24) such that at least one of the axial modes (42) oscillates with the seed radiation.

摘要翻译： 提供一种用于种子激光系统（10）用于单纵模振荡的方法。 该方法包括将要种子化的激光系统（10）耦合到单模输出到种子激光辐射源（12）。 接下来，确定激光系统（10）的空腔（24）的轴向模式（42）的频率捕获范围（44）和间隔（46）。 然后从具有对应于轴向模式间隔（46）的带宽（40）从种子激光辐射源（12）产生种子谱（36）。 种子谱（36）包括离散频率分量（38）的梳齿，其中一个或多个离散频率分量（38）在至少一个轴向模式（42）的频率捕获范围（44）内。 然后将种子光谱（36）注入到空腔（24）中，使得轴向模式（42）中的至少一个与种子辐射振荡。

公开(公告)号：US5796761A

公开(公告)日：1998-08-18

申请号：US712251

申请日：1996-09-11

申请人： Hagop Injeyan ,  Eric C. Cheung ,  James G. Ho

发明人： Hagop Injeyan ,  Eric C. Cheung ,  James G. Ho

IPC分类号： H01S3/30

CPC分类号： H01S3/30 ,  H01S3/08054 ,  H01S3/094026 ,  H01S3/109

摘要： A high efficiency solid state Raman laser system for shifting the frequency of an input beam emitted by a laser pumping system is described. The laser pumping system suppresses relaxation oscillations in the input beam and emits a constant power, mode-locked pulse train. A solid Raman medium is disposed inside a Raman resonator cavity to shift the frequency of the input beam to produce a Raman beam. The frequency of the Raman beam is finely tuned in the resonator cavity to eliminate high order Raman shifted wavelengths. The polarization of the Raman beam is selected using a polarizing element disposed in the resonator cavity. The Raman beam frequency is shifted using a non-linear medium inside the resonator cavity. The non-linear medium is preferably a frequency doubler. The Raman laser system is particularly suitable for producing high-quality yellow light for guide star applications.

摘要翻译： 描述了用于移动由激光泵送系统发射的输入光束的频率的高效率固态拉曼激光器系统。 激光泵浦系统抑制输入光束中的松弛振荡，并发出恒定功率的锁模脉冲串。 固体拉曼介质设置在拉曼谐振腔内部，以移动输入光束的频率以产生拉曼光束。 拉曼光束的频率在谐振腔内被微调，以消除高阶拉曼偏移波长。 使用设置在谐振器腔中的偏振元件来选择拉曼光束的偏振。 拉曼光束频率使用谐振腔内的非线性介质移位。 非线性介质优选为倍频器。 拉曼激光系统特别适用于生产用于导星应用的高品质黄光。

公开(公告)号：US5721748A

公开(公告)日：1998-02-24

申请号：US712233

申请日：1996-09-11

申请人： Hagop Injeyan ,  Eric C. Cheung ,  James G. Ho

发明人： Hagop Injeyan ,  Eric C. Cheung ,  James G. Ho

IPC分类号： H01S3/109 ,  H01S3/30

CPC分类号： H01S3/30 ,  H01S3/08054 ,  H01S3/094026 ,  H01S3/109

摘要： An intracavity doubled solid state Raman laser system for converting the frequency of a laser input beam emitted by a laser pumping system is described. A solid Raman medium is disposed within a resonator cavity to shift the frequency of the input beam to produce a Raman beam. The frequency of the Raman beam is tuned in the resonator cavity preferably using an etalon and a birefringent filter. The polarization of the Raman beam is selected using a polarizing element disposed in the resonator cavity. The Raman beam frequency is doubled using a non-linear doubling medium inside the resonator cavity. The Raman laser system is particularly suitable for producing yellow light.

摘要翻译： 描述了用于转换由激光泵送系统发射的激光输入光束的频率的腔内双倍固态拉曼激光器系统。 固体拉曼介质设置在谐振器腔内以移动输入光束的频率以产生拉曼光束。 优选地，使用标准具和双折射滤光器在谐振腔中调谐拉曼光束的频率。 使用设置在谐振器腔中的偏振元件来选择拉曼光束的偏振。 使用谐振腔内部的非线性倍增介质将拉曼光束频率加倍。 拉曼激光系统特别适用于生产黄光。

公开(公告)号：US07289699B1

公开(公告)日：2007-10-30

申请号：US10835413

申请日：2004-04-29

申请人： Richard L. Davis ,  James G. Ho ,  Akhil R. Shah ,  Thomas J. Jung ,  Terrance T. Lam

发明人： Richard L. Davis ,  James G. Ho ,  Akhil R. Shah ,  Thomas J. Jung ,  Terrance T. Lam

IPC分类号： G02B6/34 ,  G02B6/10

CPC分类号： G02B6/124 ,  G02B6/1342 ,  G02B6/136

摘要： An optical channel waveguide having a reflection grating and a related method for its fabrication. The grating is apodized to provide a desired reflection or transmission spectral characteristic, by varying the grating width along the length of the grating in the direction of light propagation. The grating has multiple parallel elements extending across the waveguide channel width, and apodization is effected by appropriate selection of the width of each element relative to the width of the channel, without varying the grating duty cycle or other parameters.

摘要翻译： 具有反射光栅的光通道波导及其制造的相关方法。 通过沿光传播方向沿光栅的长度改变光栅宽度，光栅被变迹以提供期望的反射或透射光谱特性。 光栅具有跨越波导通道宽度延伸的多个平行元件，并且通过适当地选择每个元件相对于通道宽度的宽度来实现变迹，而不改变光栅占空比或其他参数。

公开(公告)号：US10267992B1

公开(公告)日：2019-04-23

申请号：US15709052

申请日：2017-09-19

申请人： Gregory D. Goodno ,  Joshua E. Rothenberg ,  James G. Ho

发明人： Gregory D. Goodno ,  Joshua E. Rothenberg ,  James G. Ho

IPC分类号： G02B6/28 ,  G01J1/42 ,  G02B6/42 ,  H01S3/067 ,  H01S3/30 ,  F41H13/00 ,  G02B27/10

摘要： An optical fiber launcher assembly can include a low precision fiber array that outputs a plurality of optical signals from a given side that are input into an opposing side. The optical fiber launcher assembly can also include a corrective optic aligned with and spaced apart from the low precision fiber array. The plurality of optical signals output from the low precision array to the corrective optic have a given trajectory and optical signals output from the corrective optic have a substantially parallel trajectory different from the given trajectory.

公开(公告)号：US07192144B2

公开(公告)日：2007-03-20

申请号：US10999740

申请日：2004-11-30

申请人： James G. Ho

发明人： James G. Ho

IPC分类号： G02B5/08 ,  G02B26/00

CPC分类号： G02B26/06 ,  G02B26/0825

摘要： A deformable membrane mirror and a related method for its use, the mirror including a deformable membrane having a reflective front face and a back face, and further including electrodes located on both sides of the membrane, to provide a desired surface contour without imparting a concave bias to the membrane. The electrodes include a first set of electrodes spaced from the back face of the membrane, and at least one additional electrode spaced from the front face of the membrane.

摘要翻译： 一种可变形膜反射镜及其使用的相关方法，该反射镜包括具有反射前表面和后表面的可变形膜，并且还包括位于膜两侧的电极，以提供所需的表面轮廓而不赋予凹面 偏向膜。 电极包括与膜的背面间隔开的第一组电极，以及与膜前表面间隔开的至少一个附加电极。

公开(公告)号：US10162119B1

公开(公告)日：2018-12-25

申请号：US15706020

申请日：2017-09-15

申请人： James G. Ho ,  Stuart McNaught

发明人： James G. Ho ,  Stuart McNaught

IPC分类号： G02B6/30 ,  G02B27/09 ,  G02B6/26

摘要： An optical system can include an aligned fiber in optical communication with an optical medium. The optical system can also include a micro-mirror separated from an end of the aligned fiber by a first distance. The micro-mirror is positioned and shaped to transform light transmitted between the end of the aligned fiber and a target region of an integrated circuit (IC) chip. The micro-mirror is separated from the target region by a second distance the micro-mirror transforms an aspect ratio of a beam profile of the light.

公开(公告)号：US06816535B2

公开(公告)日：2004-11-09

申请号：US10244966

申请日：2002-09-17

申请人： James G. Ho ,  James H. Poylio

发明人： James G. Ho ,  James H. Poylio

IPC分类号： H01S308

CPC分类号： G01B11/272

摘要： An alignment system for co-aligning multiple laser beams to a single spatial reference point in real time. The alignment system includes a beam sampler for sampling the multiple pulsed laser beams. The sampled laser beams are directed onto a quadrant photo detector or quad cell. The output signals from the quad cell are directed to a detector signal integration circuit which develops error signals for driving tip-tilt mirrors in the beam path of the multiple lasers. The system includes a gate, reset and pulse ID generator for generating pulse trigger signals for each of the multiple lasers and signals for correlating the detector signals with the laser that produced the signal. Accordingly, a system is provided for a time multiplexed, multiple laser system which automatically co-aligns the output beams from each of the lasers to a single spatial reference point in real time.

摘要翻译： 用于将多个激光束实时地对齐到单个空间参考点的对准系统。 对准系统包括用于对多个脉冲激光束进行采样的光束采样器。 采样的激光束被引导到象限光电检测器或四通道单元上。 来自四通道单元的输出信号被引导到检测器信号积分电路，其产生用于驱动多个激光器的光束路径中的尖端倾斜反射镜的误差信号。 该系统包括一个门，复位和脉冲ID发生器，用于产生用于多个激光器中的每一个的脉冲触发信号和用于使检测器信号与产生该信号的激光相关联的信号。 因此，提供了一种用于时间复用的多激光系统的系统，其将来自每个激光器的输出光束自动地对齐到单个空间参考点。