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公开(公告)号：US3954940A
公开(公告)日：1976-05-04
申请号：US520231
申请日：1974-11-04
CPC分类号： G02F1/0305
摘要： An electrooptic crystal having improved characteristics including an improved light extinction ratio and a process of making same including etching certain portions of the lateral surfaces thereof so as to relieve surface and other strain in the crystal.
摘要翻译： 一种具有改进的特征的电光晶体，包括改进的消光比，以及制造方法包括蚀刻其侧表面的某些部分，以便减轻晶体中的表面和其它应变。
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公开(公告)号：US4210389A
公开(公告)日：1980-07-01
申请号：US960571
申请日：1978-11-14
CPC分类号： G02B1/10 , C03C27/00 , H01S3/042 , Y10S359/90 , Y10T428/12597 , Y10T428/12681 , Y10T428/12778 , Y10T428/12847 , Y10T428/12889 , Y10T428/12986
摘要： A solid state laser rod and a mount through which heat is dissipated from the rod are joined together at a bond comprised of a reflective layer on the surface of the rod, a barrier layer over the reflective layer, and a solder layer between the barrier layer and the mount. The reflective layer may be applied by sputter or other deposition procedures and is highly reflective in the region of the spectrum at which the laser operates, thus insuring optimum efficiency for the rod. The barrier layer may be applied to the reflective layer by the same deposition procedure, and it is impervious to the solder so that the solder does not penetrate it and scavenge the reflective layer. The solder should have a low melting point so as to avoid setting up excessive mechanical stresses in the rod when the solder solidifies. Both the mount and the barrier layer may be covered with a wetting layer prior to soldering to achieve better adhesion of the solder.
摘要翻译： 固体激光棒和从棒散发热量的安装座在由棒的表面上的反射层组成的接合处，反射层上的阻挡层和阻挡层之间的焊料层 和安装。 反射层可以通过溅射或其它沉积方法施加，并且在激光器操作的光谱区域内具有高反射性，从而确保了杆的最佳效率。 阻挡层可以通过相同的沉积程序施加到反射层，并且其不透过焊料，使得焊料不会渗透并清除反射层。 焊料应具有低熔点，以避免在焊料固化时在棒中产生过大的机械应力。 在焊接之前，安装层和阻挡层都可以被润湿层覆盖，以实现焊料的更好的附着。
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公开(公告)号：US3947780A
公开(公告)日：1976-03-30
申请号：US516409
申请日：1974-10-21
申请人： Robert R. Rice , Gordon H. Burkhart
发明人： Robert R. Rice , Gordon H. Burkhart
CPC分类号： H01S3/1109 , G02F1/11 , H01S3/1068 , H01S3/109
摘要： An improved laser construction having relatively simple single element means located in the laser cavity for simultaneously mode-locking and frequency doubling the laser output, said single element means including a crystal such as a non-linear barium sodium niobate (BSN) crystal properly excited to achieve acoustooptic loss modulation as well as to mode-lock the laser output, and means for locating the crystal within the laser resonator cavity.
摘要翻译： 一种改进的激光器结构，其具有位于激光腔中的相对简单的单元件，用于同时锁模和倍频激光输出，所述单个元件装置包括诸如非线性铌酸钠钠（BSN）晶体的晶体，其被适当地激发至 实现声光损耗调制以及模式锁定激光输出，以及用于将晶体定位在激光谐振腔内的装置。
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公开(公告)号：US4338352A
公开(公告)日：1982-07-06
申请号：US236835
申请日：1981-02-23
申请人： Philip D. Bear , Gordon H. Burkhart
发明人： Philip D. Bear , Gordon H. Burkhart
IPC分类号： B29C35/08 , B29C41/00 , B29C67/24 , B29D11/00 , G02B3/00 , G02B6/30 , G02B6/42 , G02B5/14 , B05D1/18
CPC分类号： B29C67/24 , B29C35/08 , B29D11/00365 , G02B3/00 , G02B6/30 , G02B6/4203 , B29C2035/0838 , B29C41/00
摘要： A lens is produced on the end of a single mode optical fiber by first coupling light into the fiber so that the light projects out the end of the fiber on which the lens is to be produced. The fiber end is then dipped in and out of a drop of negative photoresist and held in a vertical position while the photoresist wicks up the fiber and dries. The dipping and drying is continued until a sufficient lens of photoresist is built up which lens tends to build in the desired shape due to the Gaussian distribution of the light projecting out the end of the fiber and the flow of photoresist up the fiber.
摘要翻译： 通过首先将光耦合到光纤中，在单模光纤的端部产生透镜，使得光从其上制造透镜的光纤的端部突出。 然后将纤维端浸入和流出一层负性光致抗蚀剂，并保持在垂直位置，同时光致抗蚀剂吸收纤维并干燥。 浸渍和干燥继续进行，直到形成足够的光致抗蚀剂透镜，由于从纤维的端部伸出的光的高斯分布以及光纤向上的光纤的流动，这种透镜倾向于以期望的形状构成。
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公开(公告)号：US5293269A
公开(公告)日：1994-03-08
申请号：US026654
申请日：1993-03-05
CPC分类号： G02B19/0057 , C03B23/047 , G02B19/0014 , G02B27/09 , G02B27/0966 , G02B3/04 , G02B3/06 , G02B6/2552 , G02B6/4206 , H01S3/005
摘要： An aspheric cylindrical lens for collimating, with low optical aberrations, the asymmetrically diverging beams of diode laser arrays and a method of fabricating such lenses. The aspheric cylindrical lens are formed from a plano-spherical optical lens. The planar surface of the lens is then optimized such that each ray of light from a diverging input light source will travel the same optical path length in reaching a predetermined collimation plane. Due to the optimization process, an aspherical front lens surface is formed from the initial planar lens surface. The aspheric cylindrical lens may be formed by means of a drawing process in which a master lens element is drawn into a plurality of aspheric cylindrical lens elements. In such a drawing process, a master lens element is manufactured having a spherical back lens surface and an optimized front lens surface which are proportionately identical in cross-section to resulting aspheric cylindrical lens, but substantially larger in physical dimensions. The numerous optimized aspheric cylindrical lens resulting from the drawing process may thus be produced in an economical and reliable manner.
摘要翻译： 具有低光学像差的非球面柱面透镜，用于校准二极管激光器阵列的不对称发散光束以及制造这种透镜的方法。 非球面柱面透镜由平球形光学透镜形成。 然后优化透镜的平坦表面，使得来自发散输入光源的每条光线将在达到预定准直平面时行进相同的光程长度。 由于优化过程，从初始平面透镜表面形成非球面前透镜表面。 非球面柱面透镜可以通过其中将主透镜元件拉入多个非球面柱面透镜元件的绘制过程来形成。 在这种绘制过程中，制造具有球面后透镜表面和优化的前透镜表面的主透镜元件，其在横截面上与所得非球面柱面透镜成比例地相同，但在物理尺寸上实质上更大。 因此，可以以经济可靠的方式制造由拉伸工艺产生的众多优化的非球面柱面透镜。
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公开(公告)号：US5229883A
公开(公告)日：1993-07-20
申请号：US783394
申请日：1991-10-28
CPC分类号： G02B19/0057 , G02B19/0014 , G02B27/0037 , G02B27/09 , G02B27/0944 , G02B27/0966 , G02B5/1876 , G02B5/1885 , H01S3/005 , G02B27/4211 , G02B3/005
摘要： A cylindrical lens and a binary optical element for collimating with low optical aberrations an asymmetrically diverging input wavefront. The binary optical element is formed on a planar substrate on which a binary optical diffraction pattern is etched on the front surface thereof. The binary optical diffraction pattern is designed such that each ray of light from the diverging input light source will travel the same optical path length or vary from that optical path length by an integer multiple of the wavelength of the light in travelling from its source to its exit from the front surface of the binary optical element. A beam angle alignment element is also provided, to be utilized in conjunction with a cylindrical lens and the binary optical element, for correcting angular misalignments of diode lasers whose output wavefront has an optical axis which is either above or below the plane in which the active region is formed. The beam angle alignment element is also a planar substrate on which a binary optic diffraction pattern is etched. The binary optic diffraction pattern of the beam angle alignment elements diffracts the wavefront exiting from the binary optic element so as to align the wavefront about its optical axis. The cylindrical lens, the binary optical element, as well as the beam angle alignment element may be used in conjunction with a single diode lasing element, as well as a one dimensional or a two dimensional diode laser array.
摘要翻译： 一个圆柱透镜和一个二进制光学元件，用于与低光学像差准直，使不对称发散的输入波前。 二元光学元件形成在其二维光学衍射图案在其前表面上被蚀刻的平面基板上。 二元光学衍射图案被设计成使得来自发散输入光源的每条光线将相同的光路长度行进或者从该光路长度变化光源的波长的整数倍从其源到其的 从二进制光学元件的前表面离开。 还提供了一种用于与柱面透镜和二进制光学元件结合使用的光束角对准元件，用于校正二极管激光器的角度不对准，其输出波前具有光轴高于或低于激活的平面的光轴 形成区域。 光束角对准元件也是其上刻蚀了二元光学衍射图案的平面基板。 光束角度对准元件的二元光学衍射图衍射从二元光学元件出射的波阵面，以使波前相对其光轴对准。 柱面透镜，二进制光学元件以及光束角对准元件可以与单个二极管激光元件以及一维或二维二极管激光器阵列结合使用。
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公开(公告)号：US5223978A
公开(公告)日：1993-06-29
申请号：US710362
申请日：1991-06-03
CPC分类号： G02B5/1876 , G02B19/0014 , G02B19/0052 , G02B27/0037 , G02B27/09 , G02B27/0944 , G02B27/0966 , G02B5/1885
摘要： A hybrid lens for collimating, with low optical aberrations, an asymmetrically diverging input wavefront. The hybrid lens has a front surface which serves to diffract the input wavefront and a back surface which serves to refract the wavefront. Embodiments are described comprised of either a single plano-convex optical lens or a pair of lenses, one of which is a plano lens and the other or which is plano-convex. In either alternative, the convex surface is spherical. The planar surface of the single plano-convex lens or the back lens surface of the plano lens is optimized such that each ray of light from a diverging input light source will travel the same optical path length in reaching a predetermined collimation plane. This optimization is done by means of binary optic technology which uses a reactive-ion etch to form the requisite eight-level binary optic diffraction pattern. The widths of the fringe patterns generated by the three masks determined by calculations of the optical path difference between on-axis and off-axis rays which are traced through the hybrid lens.
摘要翻译： 用于准直，具有低光学像差的不对称发散输入波前的混合透镜。 混合透镜具有用于衍射输入波前的前表面和用于折射波前的后表面。 描述的实施例包括单个平凸光学透镜或一对透镜，其中一个是平面透镜，另一个是平凸的。 在任一替代方案中，凸面是球形的。 单平面透镜的平面表面或平视透镜的后透镜表面被优化，使得来自发散输入光源的每条光线将在达到预定准直平面时行进相同的光程长度。 这种优化通过使用反应离子蚀刻形成必需的八级二元光学衍射图案的二元光学技术来完成。 由通过混合透镜跟踪的在轴和离轴射线之间的光程差的计算确定的三个掩模产生的条纹图案的宽度。
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公开(公告)号：US5189294A
公开(公告)日：1993-02-23
申请号：US910466
申请日：1992-07-08
IPC分类号： G02B3/00
摘要： A sliced transform lens is used to combine and focus the optical output signals of a planar M by N laser diode array onto M detector elements in a linear detector by displacing lens slices. A sliced transform lens is used to separate the composite image of the laser diode array on the detector plane into ten spots (400 emitters per spot) by displacing the lens slices relative to each other collimated He-Ne laser beam was used to examine the sliced transform lens and the linear detector array was used to measure the image sizes and the crosstalks between the images. The results show the minimum separation is approximately five detector spacings apart. The lens elements are cut from a bulk material (BK-7) and ground to desired thickness and parallelism. Then the elements are "glued" together with standard optical wax compound and ground to the prescribed focal length. THe lens slices are cut before grinding, hence the composite lens is symmetric and zero-curf configuration is preserved. This relaxes the collimation requirement of the incoming light to some extent. The lens is then polished and ready for application.
摘要翻译： 切片变换透镜用于通过移位透镜片将由N激光二极管阵列的平面M的光输出信号组合并聚焦到线性检测器中的M个检测器元件上。 使用切片变换透镜将检测器平面上的激光二极管阵列的合成图像分离成十个点（每点400个发射器），通过相对于彼此移位镜片切片，使用He-Ne激光束来检查切片 变换透镜和线性检测器阵列用于测量图像尺寸和图像之间的串扰。 结果表明，最小分离距离约为5个探测器间距。 透镜元件从大块材料（BK-7）切割并研磨成所需的厚度和平行度。 然后将这些元件与标准的光学蜡复合物“胶合”并研磨成规定的焦距。 在研磨之前切割透镜片，因此复合透镜是对称的，并且保持零卷曲构型。 这在一定程度上放松了入射光的准直要求。 然后将镜片抛光并准备应用。
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公开(公告)号：US4756002A
公开(公告)日：1988-07-05
申请号：US877361
申请日：1986-06-23
IPC分类号： H01S3/091 , H01S3/0941
CPC分类号： H01S3/0941 , H01S3/091
摘要： A cylindrical laser rod has a cylindrical sleeve surrounding it, the cylindrical sleeve having a reflective coating applied to its periphery with one or more transparent flats or slits being positioned in an equiangular fashion about the sleeve. At each slit, a focus lens and a retro-reflecting lens is mounted thereto, with the focal lens being aligned in an off axis orientation such that a linear laser diode array can be aligned with the focus lens and its beam directed in a off axis path through the laser rod for reflection a plurality of times through the sleeve and rod, the beams being returned along its reflecting path by the retro-reflector to maximize the coupling between each linear laser diode array and the laser rod.
摘要翻译： 圆柱形激光棒具有围绕其的圆柱形套筒，圆柱形套筒具有施加到其周边的反射涂层，其中一个或多个透明平面或狭缝围绕套筒以等角线方式定位。 在每个狭缝处，安装聚焦透镜和后向反射透镜，其中焦点透镜在离轴取向上对准，使得线性激光二极管阵列可以与聚焦透镜对准，并且其光束指向偏离轴 通过激光棒穿过套筒和杆多次反射的光束，光束通过反光镜沿其反射路径返回，以最大化每个线性激光二极管阵列与激光棒之间的耦合。
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