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    External diffusion amplifier
    2.
    发明授权
    External diffusion amplifier 有权
    外部扩散放大器

    公开(公告)号：US09160136B1

    公开(公告)日：2015-10-13

    申请号：US14292546

    申请日：2014-05-30

    Applicant: LEE LASER, INC.

    Inventor： Donald Bishop ,  Dwight Kimberlin

    IPC: H01S3/00 ,  H01S3/23 ,  H01S3/0941

    CPC classification number: H01S3/2333 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/025 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0617 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/2341

    Abstract: A first amplification structure uses a single pass external diffusion amplifier wherein the picosecond beam cross-sectional area is matched to the cross-sectional area of the gain medium. A half waveplate between the gain medium and the incoming beam optimizes the polarization of the beam diameter to the polarization of the gain medium. A second amplification structure uses a double pass external diffusion amplifier wherein the beam cross-sectional area is matched to the cross-sectional area of the gain medium and passed twice therethrough. A half waveplate and a rotator create a right circular polarized beam through the gain medium and a maximum “R” coated reflector resides beyond the external diffusion amplifier and reflects a left circular polarized beam back through the gain medium, the rotator and the half waveplate where it becomes horizontally polarized and is then transmitted out of the amplification structure by the polarization sensitive beam splitter.

    Abstract translation: 第一放大结构使用单通道外部扩散放大器，其中皮秒波束横截面面积与增益介质的横截面面积相匹配。 增益介质和入射光束之间的半波片将光束直径的极化优化为增益介质的极化。 第二放大结构使用双通道外部扩散放大器，其中光束横截面积与增益介质的横截面面积相匹配并通过两次。 半波片和旋转器通过增益介质产生右圆偏振光束，并且最大“R”涂层反射器位于外扩散放大器之外，并将左圆偏振光束反射回增益介质，旋转器和半波片 它变得水平偏振，然后通过偏振敏感分束器被发射出放大结构。

    High-efficiency Ho:YAG laser
    3.
    发明授权
    High-efficiency Ho:YAG laser 失效
    高效Ho：YAG激光

    公开(公告)号：US08189644B2

    公开(公告)日：2012-05-29

    申请号：US12767590

    申请日：2010-04-26

    Applicant: Xiaodong Mu ,  Helmuth E. Meissner

    Inventor： Xiaodong Mu ,  Helmuth E. Meissner

    IPC: H01S3/091

    CPC classification number: H01S3/093 ,  H01S3/025 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/08068 ,  H01S3/094038 ,  H01S3/094042 ,  H01S3/11 ,  H01S3/161 ,  H01S3/1643

    Abstract: A laser assembly and method of operating the assembly are described in which a pump beam is directed through an end-pumped solid-state laser gain medium four or more times. The pump beam is directed at a slight angle through a first end of the medium, reflects off the inner surface of the second, opposite end (to form a “V”), and then reflected by an external or integrated mirror back through the first end and off the inner surface of the opposite end again (back through the “V”).

    Abstract translation: 描述了激光组件和操作组件的方法，其中泵浦光束被引导通过端泵浦的固态激光增益介质四次或更多次。 泵浦光束通过介质的第一端以微小的角度被引导，从第二相对端的内表面（以形成“V”）反射，然后被外部或集成的反射镜反射回第一 再次相反端的内表面（通过“V”）退出。

    Multipath laser apparatus using a solid-state slab laser rod
    5.
    发明授权
    Multipath laser apparatus using a solid-state slab laser rod 失效
    使用固态板激光棒的多径激光设备

    公开(公告)号：US07515625B2

    公开(公告)日：2009-04-07

    申请号：US11471493

    申请日：2006-06-21

    Applicant: Mitsuo Ishizu

    Inventor： Mitsuo Ishizu

    IPC: H01S3/06

    CPC classification number: H01S3/0606 ,  H01S3/0615 ,  H01S3/0623 ,  H01S3/0625 ,  H01S3/063 ,  H01S3/08095 ,  H01S3/093 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1653 ,  H01S3/2325

    Abstract: A laser apparatus has a multipath solid-state slab laser rod and an excitation source that excites it, and uses a solid-state slab laser rod that has a trapezoid or parallelogram-shaped cross section along the optical path, that is provided with six or more faces and that has a light amplifying effect or a nonlinear optical effect. The light that is incident to the laser rod is totally reflected at the incident-light end face and exit end face of the laser rod, passes back through the interior of the laser rod a plurality of times, e.g., three times, and then exits. For light amplification, excitation light is irradiated from the side face. In addition, for nonlinear optical effects, the z-axis of a nonlinear optical crystal is disposed so as to be orthogonal to the plane of the optical path, and the temperature of the solid-state slab laser rod is kept at the phase-matching temperature. This laser apparatus of this configuration solves drawbacks of prior-art laser rods so that the high conversion rate from excitation light to laser light is obtained at a high laser gain.

    Abstract translation: 激光装置具有多径固态板激光棒和激发源，并且使用沿着光路具有梯形或平行四边形横截面的固态平板激光棒，其设有六个或 更多的面孔，具有光放大效果或非线性光学效果。 入射到激光棒的光在激光棒的入射光端面和出射端面处被全反射，多次反复穿过激光棒的内部，例如三次，然后退出 。 对于光放大，从侧面照射激发光。 此外，对于非线性光学效应，非线性光学晶体的z轴被布置成与光路的平面正交，并且固态平板激光棒的温度保持在相位匹配 温度。 这种配置的激光装置解决了现有技术的激光棒的缺点，从而在高激光增益下获得从激发光到激光的高转换率。

    Laser with narrow bandwidth antireflection filter for frequency selection
    7.
    发明申请
    Laser with narrow bandwidth antireflection filter for frequency selection 审中-公开
    用于频率选择的具有窄带宽抗反射滤波器的激光器

    公开(公告)号：US20060176914A1

    公开(公告)日：2006-08-10

    申请号：US11351682

    申请日：2006-02-10

    Applicant: Gerald Bacher ,  David Hargis

    Inventor： Gerald Bacher ,  David Hargis

    IPC: H01S3/10

    CPC classification number: H01S3/08059 ,  H01S3/0623 ,  H01S3/08031 ,  H01S3/105 ,  H01S3/1062 ,  H01S3/109 ,  H01S3/1623 ,  H01S3/1648 ,  H01S3/1658

    Abstract: A laser includes a narrow bandwidth AR coating for defining a frequency range for laser emission within the laser cavity. Advantageously, the narrow-band AR coating has a very low loss, which can be particularly useful if the gain medium has low gain. The narrow-band AR coating can be used to narrow the laser emission from a broadband gain medium (e.g. Cr:LiSAF), or to select from among discrete transition lines (e.g. Nd:YAG) without the use of cumbersome tuning elements. An etalon, which may be substantially uncoated, may be utilized to further narrow the fundamental wavelength. For a solid state gain medium, the AR coating may be formed on one of the optical faces. A nonlinear element may be included for frequency-conversion, and the AR coating constrains the lasing frequency in the presence of this nonlinear loss and assists in maintaining single frequency operation to provide a stable frequency-converted output.

    Abstract translation: 激光器包括用于定义激光腔内的激光发射的频率范围的窄带宽AR涂层。 有利地，窄带AR涂层具有非常低的损耗，如果增益介质具有低增益，则其可以是特别有用的。 可以使用窄带AR涂层来缩小来自宽带增益介质（例如Cr：LiSAF）的激光发射，或者不使用繁琐的调谐元件从离散过渡线（例如Nd：YAG）中进行选择。 可以使用基本上未涂覆的标准具来进一步缩小基波长。 对于固态增益介质，可以在其中一个光学面上形成AR涂层。 可以包括用于频率转换的非线性元件，并且AR涂层在存在这种非线性损耗的情况下约束激光频率，并且有助于维持单频操作以提供稳定的频率转换输出。

    Semiconductor laser excited solid laser device
    8.
    发明授权
    Semiconductor laser excited solid laser device 失效
    半导体激光激光激光器件

    公开(公告)号：US5091915A

    公开(公告)日：1992-02-25

    申请号：US618427

    申请日：1990-11-27

    Applicant: Kenji Tatsumi ,  Yoshihito Hirano

    Inventor： Kenji Tatsumi ,  Yoshihito Hirano

    IPC: H01S3/06 ,  H01S3/0941

    CPC classification number: H01S3/0606 ,  H01S3/0941 ,  H01S3/0602 ,  H01S3/0623 ,  H01S3/094084

    Abstract: A semiconductor laser excited solid laser device of side light excited type in which the excitation region is well matched with the mode volume of the laser oscillation mode, for providing high output and high efficiency. The semiconductor laser excited solid laser device comprises a diffraction grating for diffracting the output light beams of the semiconductor lasers in a direction of formation of the laser resonator mode in application of the output light beams to the solid laser medium.

    Abstract translation: 激光区域与激光振荡模式的模式体积良好匹配的侧光激发型半导体激光激光固体激光器件，用于提供高输出和高效率。 半导体激光激光固体激光器件包括衍射光栅，用于在将输出光束应用于固体激光介质的同时，在形成激光谐振器模式的方向上衍射半导体激光器的输出光束。

    High efficiency mode-matched solid-state laser with transverse pumping
    9.
    发明授权
    High efficiency mode-matched solid-state laser with transverse pumping 失效
    具有横向泵浦的高效模式匹配固态激光器

    公开(公告)号：US4894839A

    公开(公告)日：1990-01-16

    申请号：US231192

    申请日：1988-08-11

    Applicant: Thomas M. Baer

    Inventor： Thomas M. Baer

    IPC: H01S3/094 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/109 ,  H01S5/022

    CPC classification number: H01S3/0941 ,  H01S3/109 ,  H01S5/02252 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/09408 ,  H01S5/005 ,  H01S5/4031

    Abstract: A high effieciency pumping scheme mode matches the TEMOO laser mode volume with a plurality of spaced apart laser diode pumping sources positioned along a lateral side of a block of laser material. The cavity resonator within the block is configured in tightly folded zig-zag configuration. Pump radiation from the diode pumping sources is collimated by an optical fiber and the fold angle is selected to mode match the pump radiation to the mode volume. Parasitic oscillation across the laser block are prevented.

    Abstract translation: 高效率泵送方案模式将TEM00激光模式体积与沿着激光材料块的侧面定位的多个间隔开的激光二极管泵浦源匹配。 块内的空腔谐振器被配置成紧密折叠的之字形配置。 来自二极管泵浦源的泵浦辐射由光纤校准，并且折叠角被选择为将泵浦辐射与模式体积匹配。 阻止了激光块的寄生振荡。

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