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    • 13. 发明申请
    • Total internal reflecting laser pump cavity
    • 全内反射激光泵腔
    • US20060039439A1
    • 2006-02-23
    • US10921200
    • 2004-08-19
    • John NettletonDallas Barr
    • John NettletonDallas Barr
    • H01S3/08
    • H01S3/0606H01S3/0612H01S3/0617H01S3/094057H01S3/094084H01S3/09415H01S3/11
    • A laser device in accordance with the present invention includes a diode pump for generating pump light and a pump cavity for receiving the pump light for conversion into an output laser beam. The pump cavity is formed as a trapezoidal prism, or a prism having bases with trapezoidal perimeters, rectangular sides, a rectangular input end and a rectangular output end. The trapezoidal prism has a decreasing taper, from a maximum width at the input end to a minimum width at the output end of the trapezoidal prism. The trapezoidal prism is formed by fixing a rectangular prism that is made of doped lasing material between two triangular prism portions that are made of undoped material. To facilitate ease of manufacture, a pallet is provided, and the diode pump and trapezoidal prism can be fixed to the pallet so that the diode pump is immediately proximate the input end of the trapezoidal prism.
    • 根据本发明的激光装置包括用于产生泵浦光的二极管泵和用于接收用于转换成输出激光束的泵浦光的泵腔。 泵腔形成为梯形棱镜,或具有梯形边缘的基座,矩形侧面,矩形输入端和矩形输出端的棱镜。 梯形棱镜具有从梯形棱镜输出端的输入端的最大宽度到最小宽度的渐减锥度。 梯形棱镜通过将由掺杂的激光材料制成的矩形棱镜固定在由未掺杂材料制成的两个三角形棱镜部分之间而形成。 为了便于制造,提供了托盘,并且二极管泵和梯形棱镜可以固定到托盘上,使得二极管泵立即靠近梯形棱镜的输入端。
    • 14. 发明授权
    • Solid-state devices with radial dopant valence profile
    • 具有径向掺杂剂价态的固态器件
    • US06996137B2
    • 2006-02-07
    • US10119462
    • 2002-08-06
    • Robert W. ByrenDavid S. Sumida
    • Robert W. ByrenDavid S. Sumida
    • H01S3/11H01S3/16
    • H01S3/113H01S3/061H01S3/0617H01S3/094084H01S3/0941H01S3/1623H01S3/1643H01S3/1681
    • A solid state, laser light control device (20, 30) and material (10), and methods of producing same. The device (20, 30) and material (10) consist essentially of a host material (14) which contains: a dopant species (16) at a first valence state (a), the concentration of which increases with distance from the surface (18); and the same dopant species (16) at a second valence state (b), the concentration which decreases with distance from the surface (18). The method comprises the steps of: obtaining a doped solid state material (14); exposing the solid state material (14) to elevated temperature, for a period of time, in an oxidizing or reducing atmosphere. The elevated temperature and time of exposure are selected to change the valence state (a) of the dopant (16) in direct proportion to distance from the surface (18) of the solid state material (16). What is thereby produced is a solid state device (20, 30) in which the concentration of the dopant 16 at the second valence state (b) decreases with radius, the concentration of the dopant (16) at the first valence state (a) increases with radius, and the sum of these concentrations remains constant.
    • 固态激光控制装置(20,30)和材料(10)及其制造方法。 装置(20,30)和材料(10)基本上由主体材料(14)组成,其包含:处于第一价态(a)的掺杂剂物质(16),其浓度随距离表面的距离而增加 18); 和与第二价态(b)相同的掺杂剂物质(16),其浓度随距表面18的距离而减小。 该方法包括以下步骤:获得掺杂固体材料(14); 在氧化或还原气氛中将固态材料(14)暴露于升高的温度一段时间。 选择升高的温度和曝光时间以与固态材料(16)的表面(18)的距离成正比的方式改变掺杂剂(16)的化合价态(a)。 由此产生的是固态装置(20,30),其中第二价态(b)的掺杂剂16的浓度随着半径而减小,掺杂剂(16)处于第一价态(a)的浓度, 半径增加,这些浓度的总和保持不变。
    • 15. 发明授权
    • Tapered laser rods as a means of minimizing the path length of trapped barrel mode rays
    • 锥形激光棒作为最小化被捕获的筒状模式射线的路径长度的手段
    • US06937636B1
    • 2005-08-30
    • US09651658
    • 2000-08-29
    • Raymond J. BeachEric C. HoneaStephen A. PayneIan MercerMichael D. Perry
    • Raymond J. BeachEric C. HoneaStephen A. PayneIan MercerMichael D. Perry
    • H01S3/06H01S3/0941
    • H01S3/0617H01S3/061H01S3/094057H01S3/09415
    • By tapering the diameter of a flanged barrel laser rod over its length, the maximum trapped path length of a barrel mode can be dramatically reduced, thereby reducing the ability of the trapped spontaneous emission to negatively impact laser performance through amplified spontaneous emission (ASE). Laser rods with polished barrels and flanged end caps have found increasing application in diode array end-pumped laser systems. The polished barrel of the rod serves to confine diode array pump light within the rod. In systems utilizing an end-pumping geometry and such polished barrel laser rods, the pump light that is introduced into one or both ends of the laser rod, is ducted down the length of the rod via the total internal reflections (TIRs) that occur when the light strikes the rod's barrel. A disadvantage of using polished barrel laser rods is that such rods are very susceptible to barrel mode paths that can trap spontaneous emission over long path lengths. This trapped spontaneous emission can then be amplified through stimulated emission resulting in a situation where the stored energy available to the desired lasing mode is effectively depleted, which then negatively impacts the laser's performance, a result that is effectively reduced by introducing a taper onto the laser rod.
    • 通过锥形圆柱形激光棒在其长度上的直径逐渐减小,筒状模式的最大捕获路径长度可以大大降低,从而降低被捕获的自发发射通过放大的自发发射(ASE)对激光性能产生负面影响的能力。 具有抛光桶和法兰端盖的激光棒在二极管阵列端泵浦激光系统中的应用越来越多。 棒的抛光筒用于将二极管阵列泵浦光限制在杆内。 在使用端部泵送几何形状的系统和抛光的筒状激光棒的系统中,被引入到激光棒的一端或两端的泵浦光通过全部内部反射(TIR)向下延伸, 光线撞到杆的桶。 使用抛光桶形激光棒的缺点是这样的棒非常容易受到桶状模式路径的影响,可以在长路径长度上捕获自发发射。 然后可以通过受激发射来扩大被捕获的自发发射,从而导致可用于期望的激光模式的存储能量被有效耗尽的情况,其然后对激光器的性能产生不利影响,通过在激光器上引入锥形来有效地减少 竿。
    • 17. 发明授权
    • System and method for pumping a slab laser
    • 泵送平板激光的系统和方法
    • US06567452B2
    • 2003-05-20
    • US09862956
    • 2001-05-22
    • Robert W. ByrenDavid F. RockCheng-Chih Tsai
    • Robert W. ByrenDavid F. RockCheng-Chih Tsai
    • H01S314
    • H01S3/09415H01S3/0606H01S3/0612H01S3/0617H01S3/094084
    • A concentrator including a volume of at least partially transmissive material and a plurality of facets disposed at at least one surface thereof. Each of the facets is disposed at a position dependent angle relative to the surface effective to cause an internal reflection of energy applied to the layer whereby the density of the applied energy varies as a function of position. In the illustrative implementation, the volume is an active medium, i.e., a slab. The slab has substantially parallel, planar upper and lower surfaces and first and second edges therebetween. A plurality of cladding layers are disposed on the upper and lower surfaces of the slab. The facets are provided in the cladding layers on the upper and lower surfaces of the slab and angled as a function of distance relative to the first or the second edge. The facets provide a Fresnel reflecting surface or a binary optic surface.
    • 一种集中器,包括至少部分透射材料的体积和设置在其至少一个表面上的多个小面。 每个小面相对于表面以相对于角度的位置设置,有效地引起施加到层的能量的内部反射,由此所施加的能量的密度作为位置的函数而变化。 在说明性实施中,体积是活性介质,即板坯。 板坯具有基本上平行的平面上表面和下表面以及其间的第一和第二边缘。 多个包覆层设置在板坯的上表面和下表面上。 小面设置在板坯的上表面和下表面上的包覆层中,并且作为相对于第一或第二边缘的距离的函数而成角度。 面提供了菲涅耳反射表面或二元光学表面。
    • 18. 发明申请
    • HIGH GAIN LASER AMPLIFIER
    • 高增益放大器
    • US20020101893A1
    • 2002-08-01
    • US09736997
    • 2000-12-14
    • Hans W. BruesselbachAlexander A. BetinDavid S. Sumida
    • H01S003/16
    • H01S3/063H01S3/0602H01S3/0612H01S3/0617H01S3/1618H01S3/1643
    • A high gain optical amplifier and method. Generally, the inventive amplifier includes a first crystal having an axis and a first index of refraction and a second crystal bonded to the first crystal about the axis and having a second index of refraction. The first index is higher than the second index such that light through the first crystal is totally internally reflected. In the illustrative embodiment, the first crystal is Yb: YAG with an index of approximately 1.82, the second crystal is Sapphire with an index of approximately 1.78, and the axis is the propagation axis. The invention is, in its preferred embodiment, a light guide fabricated out of crystalline materials, diffusion bonded together. If the core of the light guide is doped with laser ions, high gain amplifiers made be designed and operable over a large nulltendue. With a judicious choice of the laser crystal and cladding materials, shape, and bonding technique, the guided amplifier is much less susceptible to parasitic oscillation than amplifiers constructed in accordance with conventional teachings. The clad core is also able to handle larger thermal load without breakage than can an unclad core.
    • 高增益光放大器和方法。 通常,本发明的放大器包括具有轴和第一折射率的第一晶体,以及围绕轴线键合到第一晶体并具有第二折射率的第二晶体。 第一指数高于第二指数,使得通过第一晶体的光完全内部反射。 在说明性实施例中,第一晶体为Yb:YAG,折射率约为1.82,第二晶体为蓝宝石,折射率约为1.78,轴为传播轴。 在其优选实施例中,本发明是由结晶材料制成的光导,扩散结合在一起。 如果光导的核心掺杂有激光离子,则高增益放大器可以在大的衰减范围内设计和操作。 通过明智地选择激光晶体和包层材料,形状和结合技术,与根据常规教导构建的放大器相比,引导放大器不太容易发生寄生振荡。 包芯可以处理较大的热负载,而不会破损。
    • 20. 发明授权
    • Composite optical and electro-optical devices
    • 复合光学和电光器件
    • US5846638A
    • 1998-12-08
    • US580730
    • 1995-12-29
    • Helmuth E. Meissner
    • Helmuth E. Meissner
    • B32B17/00C03C27/00C30B33/00G02B6/122G02B6/134G02F1/35G02F1/355B32B31/00
    • G02B6/1342B32B17/00B32B37/00C03C27/00C30B29/28C30B33/00G02B6/122G02F1/3551B32B2307/40B32B2309/68G02F2001/3548H01S3/0612H01S3/0617H01S3/0627Y10S148/012Y10S148/135Y10T428/30Y10T428/31504
    • A method of forming defect-free permanent bonds without the use of adhesives as well as devices formed by this method is disclosed. In general, the disclosed process allows similar or dissimilar crystalline, vitreous or dense polycrystalline ceramic, metallic or organic polymeric components to be first joined by optical contacting and then heat treated to stabilize the bond. The heat treatment can be performed at a low enough temperature to prevent interdiffusion between species, thus insuring that the bond is not subjected to excessive mechanical stresses and that the materials do not undergo phase changes. Therefore stable bonds can be formed using the disclosed process between materials of widely differing physical, mechanical, thermal, optical and electro-optical properties such as different hardness, chemical durability, mechanical strength, coefficients of thermal expansion, thermal conductivity, crystal structure, refractive indices, optical birefringence, nonlinear optical coefficients, electrical conductivity, or semiconducting properties.
    • 公开了一种不使用粘合剂形成无缺陷永久性粘合的方法以及通过该方法形成的装置。 通常,所公开的方法允许相似或不同的结晶,玻璃状或致密多晶陶瓷,金属或有机聚合物组分首先通过光学接触连接,然后进行热处理以稳定键。 热处理可以在足够低的温度下进行,以防止物质之间的相互扩散,从而确保粘结不会受到过大的机械应力,并且材料不会发生相变。 因此,可以使用广泛不同的物理,机械,热,光学和电光学性质的材料之间公开的方法形成稳定的键,例如不同的硬度,化学耐久性,机械强度,热膨胀系数,导热系数,晶体结构,折射率 指数,光学双折射,非线性光学系数,电导率或半导体性质。