公开(公告)号：US09735537B1

公开(公告)日：2017-08-15

申请号：US15097043

申请日：2016-04-12

申请人： Joshua E. Rothenberg ,  Eric C. Cheung ,  Gregory D. Goodno

发明人： Joshua E. Rothenberg ,  Eric C. Cheung ,  Gregory D. Goodno

IPC分类号： G02F1/01 ,  H04B10/25 ,  H01S3/23 ,  H01S3/00 ,  G02B27/30 ,  H01S3/10 ,  G02B27/10 ,  G02B27/09 ,  G02B27/00 ,  H01S3/13

CPC分类号： H01S3/2391 ,  G02B27/0037 ,  G02B27/0927 ,  G02B27/1006 ,  G02B27/1086 ,  G02B27/30 ,  H01S3/005 ,  H01S3/0085 ,  H01S3/06754 ,  H01S3/1003 ,  H01S3/1307

摘要： A system includes N master oscillators to generate N master oscillator driving signals. The system includes N splitters to split each of the N master oscillator signals into M coherent signals with M being a positive integer greater than one. A modulator and fiber amplifier stage adjusts the relative phases of the M coherent signals and generates M×N amplified signals. The M×N amplified signals are aggregated into M clusters of N fibers. The system includes M spectral beam combination (SBC) modules to combine each of the M clusters. Each SBC module combines the M×N amplified signals at N wavelengths and generates M tiled output beams. Each SBC module employs a single dimensional (1D) fiber optic array to transmit one cluster of N amplified signals from the M signal clusters and generates one tiled output beam of the M tiled output beams.

公开(公告)号：US08786942B2

公开(公告)日：2014-07-22

申请号：US13495374

申请日：2012-06-13

申请人： Stephen P. Palese ,  Eric C. Cheung ,  Gregory D. Goodno ,  Chun-Ching Shih ,  Mark E. Weber

发明人： Stephen P. Palese ,  Eric C. Cheung ,  Gregory D. Goodno ,  Chun-Ching Shih ,  Mark E. Weber

IPC分类号： H04B10/17 ,  H01S3/23 ,  H01S3/067

CPC分类号： H01S3/2383 ,  H01S3/0085 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/2308

摘要： A pulsed fiber array laser system that has actively stabilized coherent beam combination (CBC) is disclosed. The active stabilization is accomplished using both piston phase control and intra-pulse phase control, allowing a much greater increase in pulse energy. Further stabilization using intra-pulse amplitude control is also disclosed. A chirp profile can be written on the output pulse to enable specific applications. An amplitude profile of the amplifier array may optionally be tailored to match to a reference electrical pulse. Using the current invention, a much smaller number of amplifier chains will be needed to achieve certain pulse energy, resulting in a system with lower complexity, lower cost, smaller size, less weight, and higher reliability.

摘要翻译： 公开了一种具有主动稳定的相干光束组合（CBC）的脉冲光纤阵列激光系统。 主动稳定是使用活塞相位控制和脉冲内相位控制来实现的，允许脉冲能量增加更多。 还公开了使用脉冲内幅度控制的进一步的稳定化。 可以在输出脉冲上写入啁啾曲线，以实现特定应用。 可以可选地调整放大器阵列的幅度分布以匹配参考电脉冲。 使用本发明，需要更少数量的放大器链来实现某些脉冲能量，从而导致具有较低复杂性，较低成本，较小尺寸，较小重量和更高可靠性的系统。

公开(公告)号：US20130336344A1

公开(公告)日：2013-12-19

申请号：US13495374

申请日：2012-06-13

申请人： Stephen P. Palese ,  Eric C. Cheung ,  Gregory D. Goodno ,  Chun-Ching Shih ,  Mark E. Weber

发明人： Stephen P. Palese ,  Eric C. Cheung ,  Gregory D. Goodno ,  Chun-Ching Shih ,  Mark E. Weber

IPC分类号： H01S3/10

CPC分类号： H01S3/2383 ,  H01S3/0085 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/2308

摘要： A pulsed fiber array laser system that has actively stabilized coherent beam combination (CBC) is disclosed. The active stabilization is accomplished using both piston phase control and intra-pulse phase control, allowing a much greater increase in pulse energy. Further stabilization using intra-pulse amplitude control is also disclosed. A chirp profile can be written on the output pulse to enable specific applications. An amplitude profile of the amplifier array may optionally be tailored to match to a reference electrical pulse. Using the current invention, a much smaller number of amplifier chains will be needed to achieve certain pulse energy, resulting in a system with lower complexity, lower cost, smaller size, less weight, and higher reliability.

摘要翻译： 公开了一种具有主动稳定的相干光束组合（CBC）的脉冲光纤阵列激光系统。 主动稳定是使用活塞相位控制和脉冲内相位控制来实现的，允许脉冲能量增加更多。 还公开了使用脉冲内幅度控制的进一步的稳定化。 可以在输出脉冲上写入啁啾曲线，以实现特定应用。 可以可选地调整放大器阵列的幅度分布以匹配参考电脉冲。 使用本发明，需要更少数量的放大器链来实现某些脉冲能量，从而导致具有较低复杂性，较低成本，较小尺寸，较小重量和更高可靠性的系统。

公开(公告)号：US08903209B2

公开(公告)日：2014-12-02

申请号：US12215293

申请日：2008-06-26

申请人： Eric C. Cheung ,  Stephen P. Palese

发明人： Eric C. Cheung ,  Stephen P. Palese

IPC分类号： G02B6/34 ,  G02B6/26 ,  G02B6/28 ,  G02B6/293 ,  G02B5/09 ,  G02B27/10

CPC分类号： G02B6/2931 ,  G02B5/09 ,  G02B6/29311 ,  G02B6/29373 ,  G02B6/2938 ,  G02B27/1006 ,  G02B27/1086

摘要： A method of spectral beam combining comprising the steps of projecting a plurality of laser beamlets of different wavelengths onto a first spectrally dispersive element, spatially chirping the plurality of beamlets via the first spectrally dispersive element, rearranging the spatially chirped beamlets with a beam redirecting element, and combining the beamlets into a single output beam via a second spectrally dispersive element.

摘要翻译： 一种光谱光束组合的方法，包括以下步骤：将多个不同波长的激光束投影到第一光谱色散元件上，经由第一光谱色散元件空间啁啾多个子束，用光束重定向元件重新排列空间啁啾子束， 并且经由第二光谱色散元件将子束组合成单个输出光束。

公开(公告)号：US5646764A

公开(公告)日：1997-07-08

申请号：US443297

申请日：1995-05-17

申请人： Gerald T. Moore ,  Karl W. Koch ,  Eric C. Cheung

发明人： Gerald T. Moore ,  Karl W. Koch ,  Eric C. Cheung

IPC分类号： G02B26/10 ,  G02B26/08 ,  H01S3/08 ,  H01S3/10

CPC分类号： G02F1/3525 ,  G02B26/10

摘要： The present invention is a beam scanner for use about a nonlinear optical crystal for frequency conversion. The scanner oscillates the high power laser beam passing through the crystal to reduce heat damage and does not change the direction or the position of the beam upon exiting the scanner. A pair of thick optical plates are affixed to a driven axle being parallel to the laser beam direction. The first plate is mounted at a given angle to the axle and the second plate is mounted at the same but negative angle to the axle so that they are mirror images about the crystal. As the axle rotates, the laser beam moves through the crystal in a cylindrical pattern and due to the manner of mounting the plates, the exiting laser beam is not displaced from the original beam direction or position. The beam scanner may be inserted into an existing optical resonator, for example, without modifications thereto.

摘要翻译： 本发明是用于频率转换的非线性光学晶体使用的光束扫描器。 扫描器振荡通过晶体的高功率激光束，以减少热损伤，并且不会在离开扫描仪时改变光束的方向或位置。 一对厚的光学板固定在平行于激光束方向的从动轴上。 第一板以相对于轴的给定角度安装，并且第二板以与轴相同但负角的方式安装，使得它们是围绕晶体的镜像。 当轴旋转时，激光束以圆柱形图案移动通过晶体，并且由于安装板的方式，出射的激光束不会从原始的光束方向或位置移位。 光束扫描器可以插入到现有的光学谐振器中，例如，不对其进行修改。

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：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：US20090324170A1

公开(公告)日：2009-12-31

申请号：US12215293

申请日：2008-06-26

申请人： Eric C. Cheung ,  Stephen P. Palese

发明人： Eric C. Cheung ,  Stephen P. Palese

IPC分类号： G02B6/32 ,  G02B6/34

CPC分类号： G02B6/2931 ,  G02B5/09 ,  G02B6/29311 ,  G02B6/29373 ,  G02B6/2938 ,  G02B27/1006 ,  G02B27/1086

摘要： A method of spectral beam combining comprising the steps of projecting a plurality of laser beamlets of different wavelengths onto a first spectrally dispersive element, spatially chirping the plurality of beamlets via the first spectrally dispersive element, rearranging the spatially chirped beamlets with a beam redirecting element, and combining the beamlets into a single output beam via a second spectrally dispersive element.

摘要翻译： 一种光谱光束组合的方法，包括以下步骤：将多个不同波长的激光束投影到第一光谱色散元件上，经由第一光谱色散元件空间啁啾多个子束，用光束重定向元件重新排列空间啁啾子束， 并且经由第二光谱色散元件将子束组合成单个输出光束。