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    High energy solid-state laser with offset pump and extraction geometry
    3.
    发明授权
    High energy solid-state laser with offset pump and extraction geometry 有权
    具有偏移泵和提取几何形状的高能固态激光器

    公开(公告)号：US07760789B2

    公开(公告)日：2010-07-20

    申请号：US12004193

    申请日：2007-12-20

    申请人： Kalin Spariosu ,  Alexander A. Betin

    发明人： Kalin Spariosu ,  Alexander A. Betin

    IPC分类号： H01S3/09

    CPC分类号： H01S3/0941 ,  F41H13/00 ,  H01S3/0404 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1608 ,  H01S3/1643

    摘要： A laser system and method. The inventive laser includes an annular gain medium; a source of pump energy; and an arrangement for concentrating energy from the source on the gain medium. In a more specific implementation, a mechanism is included for rotating the gain medium to effect extraction of pump energy and cooling. In the illustrative embodiment, the pump source is a diode array. Energy from the array is coupled to the medium via an array of optical fibers. The outputs of the fibers are input to a concentrator that directs the pump energy onto a pump region of the medium. In the best mode, plural disks of gain media are arranged in an offset manner to provide a single resonator architecture. First and second mirrors are added to complete the resonator. In accordance with the inventive teachings, a method for pumping and cooling a laser is taught. In the illustrative embodiment, the inventive method includes the steps of providing a gain medium; pumping energy into a region of the gain medium; moving the medium; extracting energy from the region of the medium; and cooling region of the medium.

    摘要翻译： 激光系统和方法。 本发明的激光器包括环形增益介质; 泵能源; 以及用于将来自源的能量集中在增益介质上的布置。 在更具体的实施方案中，包括用于旋转增益介质以实现泵能量和冷却的提取的机制。 在说明性实施例中，泵浦源是二极管阵列。 来自阵列的能量通过光纤阵列耦合到介质。 纤维的输出被输入到将泵浦能量引导到介质的泵区域上的浓缩器。 在最佳模式中，增益介质的多个磁盘以偏移方式排列以提供单个谐振器结构。 添加第一和第二反射镜以完成谐振器。 根据本发明的教导，教导了用于泵送和冷却激光器的方法。 在说明性实施例中，本发明的方法包括提供增益介质的步骤; 将能量泵入增益介质的区域; 移动媒体; 从介质区域提取能量; 和介质的冷却区域。

    Hybrid heat capacity-moving slab solid-state laser
    5.
    发明授权
    Hybrid heat capacity-moving slab solid-state laser 失效
    混合热容移动板状固态激光器

    公开(公告)号：US06862308B2

    公开(公告)日：2005-03-01

    申请号：US10270748

    申请日：2002-10-15

    申请人： Eddy A. Stappaerts

    发明人： Eddy A. Stappaerts

    IPC分类号： H01S3/02 ,  H01S3/042 ,  H01S3/05 ,  H01S3/06 ,  H01S3/0941 ,  H01S3/17 ,  H01S3/04

    CPC分类号： H01S3/0941 ,  H01S3/02 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/0604 ,  H01S3/07 ,  H01S3/102 ,  H01S3/1026

    摘要： Laser material is pumped and its stored energy is extracted in a heat capacity laser mode at a high duty factor. When the laser material reaches a maximum temperature, it is removed from the lasing region and a subsequent volume of laser material is positioned into the lasing region to repeat the lasing process. The heated laser material is cooled passively or actively outside the lasing region.

    摘要翻译： 激光材料被泵送，并且其存储的能量以高占空比的热容量激光模式提取。 当激光材料达到最高温度时，将其从激光区域移除，并将随后的激光材料体积定位到激光区域以重复激光过程。 加热的激光材料被动地或主动地冷却在激光区域外部。

    Optical pumping method and apparatus
    6.
    发明授权
    Optical pumping method and apparatus 失效
    光泵法及装置

    公开(公告)号：US5757839A

    公开(公告)日：1998-05-26

    申请号：US727022

    申请日：1996-10-08

    申请人： Subrat Biswal ,  Gerard A. Mourou

    发明人： Subrat Biswal ,  Gerard A. Mourou

    IPC分类号： H01S3/042 ,  H01S3/06 ,  H01S3/094 ,  H01S3/17 ,  H01S3/091

    CPC分类号： H01S3/1026 ,  H01S3/0604 ,  H01S3/0057 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0608 ,  H01S3/061 ,  H01S3/08072 ,  H01S3/094038 ,  H01S3/173 ,  H01S3/2316

    摘要： In order to avoid problems associated with thermal distortion, loss of energy, and destruction of system components, the invention provides a means for producing, for the first time, high repetition rate, high power pulses while avoiding thermal distortion and its attendant difficulties. The invention provides the ability to remove heat generated from the gain media (lasant material) and to repeatedly extract energy from the media without the accumulation of heat in the media which causes thermal distortions. The invention avoids thermal distortions by pumping an unheated gain region every time an optical pulse is incident thereon. In one aspect, the gain media is essentially uniformly pumped using an essentially instantaneous uniform spatial profile provided by a multi-mode oscillator. The resulting instantaneous uniform temperature profile does not create thermal gradients, thus, no thermal distortions occur. In the invention, the total time duration of pumping and lasing or amplification takes place while the thermal profile remains uniform in the region of the media in the beam path. Thus, no thermal distortions occur during the time of pumping and lasing or amplification. Heat is preferably extracted at about the same rate it is generated in the lasant material (media).

    摘要翻译： 为了避免与热失真，能量损失和系统部件的破坏相关的问题，本发明提供了一种首次制造高重复率，高功率脉冲同时避免热变形及其伴随的困难的手段。 本发明提供了去除从增益介质（惰性材料）产生的热量并且能够重复地从介质中提取能量的能力，而不会在导致热失真的介质中积聚热量。 本发明通过在每次光脉冲入射时泵浦未加热的增益区域来避免热失真。 在一个方面，使用由多模式振荡器提供的基本上瞬时均匀的空间分布，增益介质基本均匀地泵送。 所产生的瞬时均匀温度分布不会产生热梯度，因此不会发生热变形。 在本发明中，泵送和激光或放大的总持续时间发生在热分布在光束路径中的介质区域中保持均匀的情况下。 因此，在泵浦和激光或放大期间不会发生热失真。 优选以大致相同的速率提取热量，其在惰性材料（介质）中产生。

    Solid-state laser
    7.
    发明授权
    Solid-state laser 失效
    固态激光器

    公开(公告)号：US5339328A

    公开(公告)日：1994-08-16

    申请号：US942289

    申请日：1992-09-09

    申请人： Hiroshi Miura

    发明人： Hiroshi Miura

    IPC分类号： H01S3/094 ,  H01S3/02 ,  H01S3/042 ,  H01S3/06 ,  H01S3/0941 ,  H01S3/091

    CPC分类号： H01S3/0604 ,  H01S3/09415 ,  H01S3/025 ,  H01S3/042 ,  H01S3/08095 ,  H01S3/102 ,  H01S3/1026

    摘要： An laser with improved output power is provided. The laser comprises: a cylindrical laser medium mounted on the shaft of a motor; a resonator including a pair of mirrors provided adjacent the opposite ends of the cylindrical face of the laser medium; and a multiplicity of laser diodes angularly spaced along the circumference of the cylindrical medium and upstream of the resonator in the sense of the rotation. The laser diodes optically pump regions of the medium facing the diodes. By rotating the cylindrical medium at a high speed, the pumped region of the medium will be brought into the resonator within the life lime of excitation, thereby increasing inverted distribution of energy per unit time. The pumped regions sequentially undergo laser emission, providing increased laser output power.

    摘要翻译： 提供了具有改善的输出功率的激光器。 激光器包括：安装在电动机轴上的圆柱形激光介质; 包括邻近激光介质的圆柱面的相对端设置的一对反射镜的谐振器; 以及多个激光二极管在旋转的意义上沿着圆柱形介质的圆周和谐振器的上游角度间隔开。 激光二极管光学地泵浦面向二极管的介质的区域。 通过高速旋转圆柱形介质，介质的泵送区域将进入谐振器内的激发寿命，从而增加每单位时间反转的能量分布。 泵浦区依次进行激光发射，提供增加的激光输出功率。

    Generation of short high peak power pulses from an injection mode-locked Q-switched laser oscillator
    8.
    发明授权
    Generation of short high peak power pulses from an injection mode-locked Q-switched laser oscillator 失效
    从注入锁模Q开关激光振荡器产生短的高峰值功率脉冲

    公开(公告)号：US4914663A

    公开(公告)日：1990-04-03

    申请号：US185086

    申请日：1988-04-22

    申请人： Santanu Basu ,  Robert L. Byer

    发明人： Santanu Basu ,  Robert L. Byer

    IPC分类号： H01S3/23

    CPC分类号： H01S3/10092 ,  H01S3/102 ,  H01S3/1026

    摘要： In a laser generator for generating short high peak power pulses of lasant radiation, a mode-locked laser oscillator generator generates a train of short pulses to be amplified. The pulses to be amplified, as of 10 ps pulse width, are temporally spaced by the optical resonator round-trip time, i.e., six ns for a three meter long optical resonator. The pulses to be amplified are then injected into a moving slab Q-switched laser oscillator for seeding thereof and amplification therein. The temporal spacing of the injected pulses is matched to the round-trip time of the optical resonator of the moving slab laser oscillator for mode-locking the moving slab oscillator to efficiently achieve 100 dB of gain in the amplified pulses. The resultant amplified pulses have a peak power as of 500 MW. By chirping and broadening of the pulses to 300 ps before amplification, followed by pulse width compression in a grating pair, pecosecond pulses are generated of 150 GW peak power.

    摘要翻译： 在用于产生惰性辐射的短高峰值功率脉冲的激光发生器中，锁模激光振荡器发生器产生要被放大的一串短脉冲。 要放大的脉冲（10ps脉冲宽度）在时间上被光学谐振器往返时间间隔，即对于三米长的光学谐振器是6ns。 然后将要放大的脉冲注入到移动的平板Q开关激光振荡器中用于接种和放大。 注入脉冲的时间间隔与用于锁定移动平板振荡器的移动平板激光振荡器的光学谐振器的往返时间匹配，以在放大的脉冲中有效地实现100dB的增益。 所得到的扩增脉冲的峰值功率为500MW。 通过在放大之前将脉冲啁啾和加宽至300ps，随后在光栅对中进行脉冲宽度压缩，产生150GW峰值功率的十分之一脉冲。

    Fiber coupled diode pumped moving solid state laser
    9.
    发明授权
    Fiber coupled diode pumped moving solid state laser 失效
    光纤耦合二极管泵浦移动固态激光器

    公开(公告)号：US4890289A

    公开(公告)日：1989-12-26

    申请号：US128581

    申请日：1987-12-04

    申请人： Santanu Basu ,  Robert L. Byer

    发明人： Santanu Basu ,  Robert L. Byer

    IPC分类号： H01S3/042 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/0941 ,  H01S3/23

    CPC分类号： H01S3/09415 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/067 ,  H01S3/07 ,  H01S3/2383 ,  H01S3/0604 ,  H01S3/0623 ,  H01S3/08095 ,  H01S3/094053 ,  H01S3/102 ,  H01S3/1026

    摘要： A moving solid state laser gain structure is optically pumped by optical pumping radiation derived from a remote bank of diodes, preferably laser diodes. The pumping radiation is guided and concentrated from the bank to the laser gain structure over a bundle of fiber optic waveguides. In some embodiments, the laser gain structure is a slab of Nd:Glass or Nd:YAG. In some embodiments, the lasant beam is internally reflected within the slab over a zig-zag path. In one embodiment, the lasant slab is a rotating and translating disk with the pumping radiation being applied collinearly of the beam of lasant radiation. In another embodiment, the lasant slab is made up of a bundle of fiber optic waveguides.

    摘要翻译： 移动的固体激光增益结构通过来自远程二极管组，优选激光二极管的光泵浦辐射而被光泵浦。 泵浦辐射被引导并通过一束光纤波导从集线器集中到激光增益结构。 在一些实施例中，激光增益结构是Nd：Glass或Nd：YAG的平板。 在一些实施例中，惰性梁在锯齿形路径内部在板内反射。 在一个实施例中，惰性板是旋转和平移盘，其中泵送辐射与烟草辐射束共线地施加。 在另一个实施例中，惰性板由一束光纤波导组成。

    Solid-state laser having a moving lasing material
    10.
    发明授权
    Solid-state laser having a moving lasing material 失效
    具有移动激光材料的固体激光器

    公开(公告)号：US4789988A

    公开(公告)日：1988-12-06

    申请号：US101775

    申请日：1987-09-29

    申请人： David J. Trost

    发明人： David J. Trost

    IPC分类号： H01S3/02 ,  H01S3/042 ,  H01S3/06 ,  H01S3/045 ,  H01S3/17

    CPC分类号： H01S3/025 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0407 ,  H01S3/102 ,  H01S3/1026

    摘要： A solid-state laser having a smoothly moving lasing material. A closely toleranced, fluid-bearing assembly extends around the slab of moving lasing material for both supporting and cooling the slab of material with a film of a thermally conductive fluid, such as helium. The lasing means, which causes a portion of the lasing material to heat, is immediately adjacent the fluid-bearing assembly, and the heated lasing material is moved into the fluid-bearing assembly for cooling as soon as possible after it has been heated by the lasing operation. The slab of lasing material can be in the form of a rectangular block or a ring with a rectangular cross section. In the first case, the slab of lasing material is moved through the fluid-bearing assembly in a back-and-forth motion by a transport mechanism. In the second case, the ring is cooled by driving it through the fluid-bearing assembly in a single direction.

    摘要翻译： 一种具有平滑移动的激光材料的固体激光器。 紧密公差的流体轴承组件围绕移动的激光材料板延伸，用于用导热流体膜（例如氦）支撑和冷却材料板。 引起激光材料的一部分加热的激光装置紧邻流体轴承组件，并且加热的激光材料在被加热了之后被移动到流体轴承组件中以便尽快冷却 激光操作。 激光材料板可以是矩形块或具有矩形横截面的环的形式。 在第一种情况下，激光材料板通过运输机构来回运动地移动通过流体轴承组件。 在第二种情况下，通过沿着单个方向驱动流体轴承组件来冷却环。