公开(公告)号：US20120077003A1

公开(公告)日：2012-03-29

申请号：US13377394

申请日：2010-12-31

Applicant: Ye Hu

Inventor： Ye Hu

IPC: B32B7/02 ,  B32B37/06 ,  B32B15/04 ,  B32B9/04 ,  B32B27/38

CPC classification number: H01S3/109 ,  G02F1/3558 ,  G02F1/37 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/0627 ,  H01S3/1611 ,  H01S3/1673 ,  Y10T428/2495 ,  Y10T428/31511 ,  Y10T428/31678

Abstract: The present invention is related to methods of packaging optical nonlinear crystal with a periodically domain inversion structure (e.g. periodically poled MgO doped lithium niobate) which is bonded with a laser crystal (e.g. Nd doped YVO4) and to achieve efficient second harmonic generation in an intra-cavity configuration.

Abstract translation: 本发明涉及包含与激光晶体（例如Nd掺杂的YVO4）结合的周期性域反转结构（例如周期性极化的MgO掺杂的铌酸锂）的光学非线性晶体的方法，并且在内部实现有效的二次谐波生成 - 腔配置。

公开(公告)号：US20120069864A1

公开(公告)日：2012-03-22

申请号：US13321898

申请日：2010-05-21

Applicant: Ulrich Weichmann ,  Uwe Mackens

Inventor： Ulrich Weichmann ,  Uwe Mackens

IPC: H01S3/0941

CPC classification number: H01S3/09415 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/094084 ,  H01S3/1022 ,  H01S3/1613 ,  H01S3/1645 ,  H01S3/1653 ,  H01S3/1673

Abstract: For a diode pumped solid-state laser, measures to improve the pump light absorption in anisotropic crystals are proposed. The proposed measures reduce the dependency of the pump light absorption on the diode current and the diode temperature as well as on the detuning of the pump diode from the absorption line. These measures include sending the pump radiation twice through the crystal, placement of the laser crystal in an orientation that does not exhibit the optimum absorption and the use of a retarder.

Abstract translation: 对于二极管泵浦固态激光器，提出了改善各向异性晶体泵浦光吸收的措施。 所提出的措施减少了泵浦光吸收对二极管电流和二极管温度的依赖性以及泵二极管与吸收线的失谐的关系。 这些措施包括将泵浦辐射发送两次通过晶体，将激光晶体放置在不呈现最佳吸收的方向上，并使用延迟器。

公开(公告)号：US08073024B2

公开(公告)日：2011-12-06

申请号：US12671458

申请日：2007-07-30

Applicant: Takayuki Yanagisawa ,  Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata

Inventor： Takayuki Yanagisawa ,  Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata

IPC: H01S3/10

CPC classification number: H01S3/109 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1673

Abstract: A wavelength conversion laser device includes a solid-state laser element having a waveguide structure including a laser medium that amplifies laser beams by providing a gain generated due to absorption of pump light to the laser beams and outputs a fundamental wave, and a wavelength conversion element having a waveguide structure including a nonlinear optical material that converts a part of a fundamental wave output from the solid-state laser element to a second harmonic, to resonate the fundamental wave by an optical resonator structure including the solid-state laser element and the wavelength conversion element and outputs a second harmonic from the wavelength conversion element. The solid-state laser element outputs a linearly polarized fundamental wave, and differentiates a polarization state of a fundamental wave having passed through the wavelength conversion element and entering into the solid-state laser element from linear polarization output from the solid-state laser element, so that wavelength conversion efficiency of the wavelength conversion element is not decreased in a peak wavelength of a gain band.

Abstract translation: 波长转换激光器件包括具有波导结构的固体激光元件，该波导结构包括激光介质，该激光介质通过将由于泵浦光吸收而产生的增益提供给激光束并输出基波来放大激光束;以及波长转换元件 具有包括将从固体激光元件输出的基波的一部分转换为二次谐波的非线性光学材料的波导结构，通过包括固体激光元件和波长的光学谐振器结构共振基波 并且从波长转换元件输出二次谐波。 固体激光元件输出线偏振的基波，并且通过波长转换元件的基波的偏振状态和从固体激光元件的线偏振输出进入固体激光元件， 使得在增益带的峰值波长中波长转换元件的波长转换效率不降低。

公开(公告)号：US20110075688A1

公开(公告)日：2011-03-31

申请号：US12964014

申请日：2010-12-09

Applicant: An-Chung Chiang ,  Shou-Tai Lin ,  Yen-Chieh Huang ,  Yen-Yin Lin ,  Guey-Wu Chang

Inventor： An-Chung Chiang ,  Shou-Tai Lin ,  Yen-Chieh Huang ,  Yen-Yin Lin ,  Guey-Wu Chang

IPC: H01S3/117 ,  G02F1/295

CPC classification number: G02F1/292 ,  G02F1/3558 ,  G02F1/3775 ,  G02F2201/305 ,  H01S3/0602 ,  H01S3/09415 ,  H01S3/108 ,  H01S3/1083 ,  H01S3/109 ,  H01S3/115 ,  H01S3/1673

Abstract: The configurations of an electro-optic Bragg deflector and the methods of using it as a laser Q-switch in a Q-switched laser and in a Q-switched wavelength-conversion laser are provided. As a first embodiment, the electro-optic Bragg deflector comprises an electrode-coated electro-optic material with one of a 1D and a 2D spatially modulated electro-optic coefficient. When a voltage is supplied to the electrodes, the electro-optic material behaves like a Bragg grating due to the electro-optically induced spatial modulation of the refractive index. The second embodiment relates to an actively Q-switched laser, wherein the electro-optic Bragg deflector functions as a laser Q-switch. The third embodiment of the present invention combines the Q-switched laser and a laser-wavelength converter to form a Q-switched wavelength-conversion laser, wherein the EO Bragg deflector can be monolithically integrated with a quasi-phase-matching wavelength converter in a fabrication process.

Abstract translation: 提供了电光布拉格偏转器的结构以及将其用作Q开关激光器和Q开关波长转换激光器中的激光Q开关的方法。 作为第一实施例，电光布拉格偏转器包括具有1D和2D空间调制的电光系数之一的电极涂覆的电光材料。 当向电极提供电压时，由于电光诱导的折射率的空间调制，电光材料的行为类似于布拉格光栅。 第二实施例涉及一种主动Q开关激光器，其中电光布拉格偏转器用作激光Q开关。 本发明的第三实施例将Q开关激光器和激光波长转换器组合以形成Q开关波长转换激光器，其中EO布拉格偏转器可以与准相位匹配波长转换器单片集成在 制造工艺。

公开(公告)号：US20110026559A1

公开(公告)日：2011-02-03

申请号：US12934641

申请日：2009-04-02

Applicant: John Martin Bagshaw ,  Edward Lloyd Lewis

Inventor： John Martin Bagshaw ,  Edward Lloyd Lewis

IPC: H01S3/086 ,  H01S3/139

CPC classification number: G02B27/48 ,  G02B26/0825 ,  G03H1/02 ,  G03H1/32 ,  G03H2001/0212 ,  G03H2222/24 ,  H01S3/08059 ,  H01S3/0815 ,  H01S3/094042 ,  H01S3/105 ,  H01S3/109 ,  H01S3/1673

Abstract: A laser is provided, suitable for use in laser displays, having a laser cavity defined by at least first and second mirrors, a lasing material positioned in an optical path within the cavity with an associated pumping source and wherein one of the mirrors has a reflective surface that is moveable so as to alter the length of the cavity at a rate sufficiently high to ensure that effects due to a speckle pattern, as perceived by an observer or detector of light generated by the laser, are reduced while preserving the instantaneous coherence of the laser light. Sufficiently rapid movement of the mirror surface ensures that any speckle pattern changes at a faster rate than can be detected by the human eye or by a detector so that speckle is no longer visible, or is at least considerably reduced.

Abstract translation: 提供了适用于激光显示器的激光器，其具有由至少第一和第二反射镜限定的激光腔，激光材料定位在腔内的光路中，并具有相关联的泵浦源，并且其中一个反射镜具有反射 表面，其可移动以便以足够高的速率改变空腔的长度，以确保由观察者或由激光产生的光的检测器感知到的斑点图案的影响减小，同时保持瞬时相干性 激光灯。 镜表面的足够快速的运动确保任何斑点图案以比人眼或检测器可以检测到的更快的速率改变，使得斑点不再可见，或至少大大减少。

公开(公告)号：US20100202477A1

公开(公告)日：2010-08-12

申请号：US12671458

申请日：2007-07-30

Applicant: Takayuki Yanagisawa ,  Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata

Inventor： Takayuki Yanagisawa ,  Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata

IPC: H01S3/10

CPC classification number: H01S3/109 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1673

Abstract: A wavelength conversion laser device includes a solid-state laser element having a waveguide structure including a laser medium that amplifies laser beams by providing a gain generated due to absorption of pump light to the laser beams and outputs a fundamental wave, and a wavelength conversion element having a waveguide structure including a nonlinear optical material that converts a part of a fundamental wave output from the solid-state laser element to a second harmonic, to resonate the fundamental wave by an optical resonator structure including the solid-state laser element and the wavelength conversion element and outputs a second harmonic from the wavelength conversion element. The solid-state laser element outputs a linearly polarized fundamental wave, and differentiates a polarization state of a fundamental wave having passed through the wavelength conversion element and entering into the solid-state laser element from linear polarization output from the solid-state laser element, so that wavelength conversion efficiency of the wavelength conversion element is not decreased in a peak wavelength of a gain band.

Abstract translation: 波长转换激光器件包括具有波导结构的固体激光元件，该波导结构包括激光介质，该激光介质通过将由于泵浦光吸收而产生的增益提供给激光束并输出基波来放大激光束;以及波长转换元件 具有包括将从固体激光元件输出的基波的一部分转换为二次谐波的非线性光学材料的波导结构，通过包括固体激光元件和波长的光学谐振器结构共振基波 并且从波长转换元件输出二次谐波。 固体激光元件输出线偏振的基波，并且通过波长转换元件的基波的偏振状态和从固体激光元件的线偏振输出进入固体激光元件， 使得在增益带的峰值波长中波长转换元件的波长转换效率不降低。

公开(公告)号：US07729042B2

公开(公告)日：2010-06-01

申请号：US12350336

申请日：2009-01-08

Applicant: Akira Egawa

Inventor： Akira Egawa

IPC: G02F1/35 ,  H01S3/10

CPC classification number: G02F1/37 ,  G02F2001/3546 ,  H01S3/025 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1673 ,  H04N9/3161

Abstract: A light source device includes: a light source unit configured to emit light; a wavelength conversion element configured to convert the wavelength of light emitted from the light source unit; a light source housing configured to accommodate at least the light source unit and the wavelength conversion element; and a temperature control unit configured to control temperature of the wavelength conversion element. The temperature control unit is disposed outside the light source housing.

Abstract translation: 光源装置包括：配置成发光的光源单元; 波长转换元件，被配置为转换从所述光源单元发射的光的波长; 光源壳体，被配置为容纳至少所述光源单元和所述波长转换元件; 以及温度控制单元，被配置为控制波长转换元件的温度。 温度控制单元设置在光源壳体的外部。

公开(公告)号：US07724797B2

公开(公告)日：2010-05-25

申请号：US11788917

申请日：2007-04-23

Applicant: Stepan Essaian ,  Andrei Shchegrov

Inventor： Stepan Essaian ,  Andrei Shchegrov

IPC: H01S5/00

CPC classification number: H01S3/109 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/0815 ,  H01S3/09415 ,  H01S3/1118 ,  H01S3/1611 ,  H01S3/1673

Abstract: A compact solid-state laser array for nonlinear intracavity frequency conversion into desired wavelengths using periodically poled nonlinear crystals. The crystals contain dopants such as MgO and/or have a specified stoichiometry. A preferred embodiment comprises a microchip laser cavity that includes a solid-state gain chip, such as Nd:YVO4, which also provides polarization control of the laser; and a periodically poled nonlinear crystal chip such as PPMgOLN, for efficient frequency doubling of a infrared laser pump beam into the visible wavelength range. The described designs are especially advantageous for obtaining low-cost green and blue laser sources. The use of such high-efficiency pumps and nonlinear materials allows scaling of a compact, low-cost architecture to provide high output power levels in the blue/green wavelength range.

Abstract translation: 使用周期性极化非线性晶体的非线性腔内频率转换成所需波长的紧凑型固态激光器阵列。 晶体含有诸如MgO的掺杂剂和/或具有指定的化学计量。 优选实施例包括微芯片激光腔，其包括固态增益芯片，例如Nd：YVO4，其还提供激光器的偏振控制; 以及诸如PPMgOLN的周期性极化非线性晶体芯片，用于将红外激光泵浦光束有效倍频到可见波长范围。 所描述的设计对于获得低成本的绿色和蓝色激光源是特别有利的。 使用这种高效泵和非线性材料可以缩放紧凑的低成本架构，以在蓝/绿波长范围内提供高输出功率水平。

公开(公告)号：US07693192B2

公开(公告)日：2010-04-06

申请号：US11766834

申请日：2007-06-22

Applicant: Takashi Adachi ,  Shogo Yamazoe

Inventor： Takashi Adachi ,  Shogo Yamazoe

IPC: H01S3/098

CPC classification number: H01S3/1118 ,  H01S3/042 ,  H01S3/08 ,  H01S3/09415 ,  H01S3/1618 ,  H01S3/163 ,  H01S3/1673 ,  H01S3/1685

Abstract: A mode-locked laser device includes a Fabry-Perot resonator, a mode-locking element disposed within the resonator, a solid-state laser medium disposed within the resonator, and exciting means for applying excitation light to the solid-state laser medium. The opposite ends of the resonator, the mode-locking element and the solid-state laser medium are disposed to provide an average beam diameter of lasing light of not more than 150 μm on the mode-locking element and an average beam diameter of the lasing light of not more than 200 μm within the solid-state laser medium.

Abstract translation: 锁模激光器件包括法布里 - 珀罗谐振器，设置在谐振器内的锁模元件，设置在谐振器内的固态激光介质，以及用于向固态激光介质施加激发光的励磁装置。 谐振器的相对端，锁模元件和固态激光介质被设置成在模式锁定元件上提供不大于150μm的激光的平均光束直径，并且激光的平均光束直径 在固态激光介质内不超过200μm的光。

公开(公告)号：US07656578B2

公开(公告)日：2010-02-02

申请号：US11372185

申请日：2006-03-10

Applicant: Almantas Galvanauskas ,  Donald J. Harter ,  Martin E. Fermann ,  Ferenc Raksi

Inventor： Almantas Galvanauskas ,  Donald J. Harter ,  Martin E. Fermann ,  Ferenc Raksi

IPC: H01S3/00

CPC classification number: H01S3/115 ,  H01S3/005 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/06754 ,  H01S3/08031 ,  H01S3/094007 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1673

Abstract: The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.

Abstract translation: 本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。 通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。 通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。 近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。 此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。 公开了用于标记，微加工和钻孔领域的应用。