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59 条记录 (耗时 0.025 秒)

    Electric field domain patterning
    51.
    发明授权
    Electric field domain patterning 失效
    电场域图案化

    公开(公告)号：US6013221A

    公开(公告)日：2000-01-11

    申请号：US78301

    申请日：1998-05-13

    申请人： Robert L. Byer ,  Martin M. Fejer ,  Gregory D. Miller ,  Lawrence E. Myers

    发明人： Robert L. Byer ,  Martin M. Fejer ,  Gregory D. Miller ,  Lawrence E. Myers

    IPC分类号： G02F1/355 ,  B29C35/02

    CPC分类号： G02F1/3558

    摘要： A method of domain patterning a body of ferroelectric material is disclosed. This method includes patterning the surface of the material with conducting strips for applying an electric field of desired configuration to said body and covering the conductive strips and surface of the body with insulating material to control the fringe electric field components in the body of ferromagnetic material.

    摘要翻译： 公开了一种对铁电体材料进行构图的方法。 该方法包括用导电条图案化材料的表面，用于将所需构造的电场施加到所述主体并用绝缘材料覆盖主体的导电条和表面以控制铁磁材料主体中的边缘电场分量。

    Protective coating for solid state slab lasers
    52.
    发明授权
    Protective coating for solid state slab lasers 失效
    固态平板激光器的保护涂层

    公开(公告)号：US5479430A

    公开(公告)日：1995-12-26

    申请号：US384948

    申请日：1995-02-07

    申请人： Robert J. Shine, Jr. ,  Anthony J. Alfrey ,  Robert L. Byer

    发明人： Robert J. Shine, Jr. ,  Anthony J. Alfrey ,  Robert L. Byer

    IPC分类号： H01S3/06 ,  H01S3/08 ,  H01S3/0941

    CPC分类号： H01S3/0606 ,  H01S3/0941 ,  H01S3/0625 ,  H01S3/08072 ,  H01S3/08095

    摘要： A protective coating [26] and a method for applying the same on an optically pumped solid state laser [10] having a lasing medium in the form of a slab [12] with at least two opposed parallel pumping faces [18, 20] between which a laser beam [11] propagates along a zig-zag path dictated by total internal reflection between these pumping faces. The slab [12] has an input face [14] for coupling in the laser beam and an output face [16] for coupling it out. The protective coating [26] is an organic synthetic, processed thermoplastic, or thermosetting polymer. Preferred materials include polymethylmethacrylate (PMMA), polyvinylidene chloride (PVC), polyethylene, polyimide, and Mylar.The protective coating [26] is applied onto the slab [12] from a solution in which the solvent is selected from the group of materials consisting of ketones, esters, and perfluorinated solvents. Most preferably, the protective coating [26] is a random copolymer of tetrafluoroethylene (TFE) and 2,2,bis-trifluoromethyl-4,5 difluoro 1,3 dioxole, traded under the name Teflon AF (R), and the solvent is a perfluorinated solvent. Most preferably, the perfluorinated solvent is a completely fluorinated organic compound comprising primarily C.sub.8 F.sub.18 (e.g., Fluorinert FC-75 (R)).

    摘要翻译： 一种保护涂层及其应用于光泵浦固体激光器[10]的方法，该固体激光器具有呈板状[12]形式的激光介质，其具有至少两个相对的平行泵送面[18,20] 激光束[11]沿着由这些泵送面之间的全内反射指定的之字形路径传播。 板[12]具有用于在激光束中耦合的输入面[14]和用于将其耦合的输出面[16]。 保护涂层[26]是有机合成，加工的热塑性或热固性聚合物。 优选的材料包括聚甲基丙烯酸甲酯（PMMA），聚偏二氯乙烯（PVC），聚乙烯，聚酰亚胺和聚酯薄膜。 将保护涂层[26]从其中溶剂选自由酮，酯和全氟化溶剂组成的材料组成的溶液施加到板坯[12]上。 最优选地，保护性涂层[26]是四氟乙烯（TFE）和2,2,1-双三氟甲基-4,5-二氟-1,3-二氧杂环戊烯的无规共聚物，以名称TeflonAF交易，溶剂是 全氟化溶剂。 最优选地，全氟化溶剂是主要包含C 8 F 18（例如Fluorinert FC-75）的完全氟化的有机化合物。

    Method of cladding single crystal optical fiber
    54.
    发明授权
    Method of cladding single crystal optical fiber 失效
    单晶光纤包层方法

    公开(公告)号：US5077087A

    公开(公告)日：1991-12-31

    申请号：US491442

    申请日：1990-02-28

    申请人： Robert L. Byer ,  Amado Cordova ,  Michael Digonnet ,  Martin Fejer ,  Celestino Gaeta ,  Herbert J. Shaw ,  Shoichi Sudo

    发明人： Robert L. Byer ,  Amado Cordova ,  Michael Digonnet ,  Martin Fejer ,  Celestino Gaeta ,  Herbert J. Shaw ,  Shoichi Sudo

    IPC分类号： C03B37/023 ,  G02B6/02 ,  G02F1/035 ,  G02F1/377 ,  H01S3/067 ,  H01S3/092

    CPC分类号： H01S3/092 ,  C03B37/023 ,  G02B6/02 ,  G02F1/0353 ,  G02F1/3775 ,  H01S3/06708

    摘要： Methods and apparatus are shown for cladding grown single crystal optical fibers. Neodymium YAG fibers are clad with a high index glass, either melted around the fiber in a trough or extruded over the fiber surface. Lithium niobate fibers are clad through an impregnation process. The lithium niobate fiber is first coated with magnesium oxide and then heated to a temperature and for a time sufficient for the magnesium oxide dopant material to diffuse into the fiber. The dopant lowers the intrinsic refractive indices of the fiber material around its circumference, creating a cladding region around the fiber core. Single crystal fibers clad by these methods and combined with suitable pumping means or with deposited electrodes provide low-loss single mode optical components useful for amplification, electro-optical effects and acousto-optical effects.

    摘要翻译： 示出了用于包覆生长的单晶光纤的方法和装置。 钕YAG纤维用高折射率玻璃包覆，在槽中围绕纤维熔化或在纤维表面上挤出。 铌酸锂纤维通过浸渍工艺包覆。 铌酸锂纤维首先用氧化镁涂覆，然后加热到足以使氧化镁掺杂剂材料扩散到纤维中的温度和时间。 掺杂剂降低纤维材料围绕其圆周的固有折射率，从而在纤维芯周围产生包层区域。 通过这些方法包覆的单晶纤维与合适的泵送装置或沉积电极组合提供了用于放大，电光效应和声光效应的低损耗单模光学部件。

    Quantum well optical electric field biased nonlinear method and apparatus
    55.
    发明授权
    Quantum well optical electric field biased nonlinear method and apparatus 失效
    量子阱光电场偏置非线性方法和装置

    公开(公告)号：US4880297A

    公开(公告)日：1989-11-14

    申请号：US109054

    申请日：1987-10-15

    申请人： Martin M. Fejer ,  Robert L. Byer

    发明人： Martin M. Fejer ,  Robert L. Byer

    IPC分类号： G02F1/355

    CPC分类号： B82Y20/00 ,  G02F1/3556

    摘要： Optically transparent quantum well structures, such as GaAs/Al.sub.0.5 Ga.sub.0.5 As, are electrically biased to produce a quadratic nonlinear optical susceptibility, the sign of which depends on the direction of the applied electric bias field. This quadratic nonlinear optical susceptibility is particularly useful for enhancing three-wave interactions especially when the applied bias field is made spatially periodic to obtain quasiphasematched interaction. Also, the quantum well material is preferably arranged in an optical waveguide for guiding the interacting waves to reduce unwanted diffraction effects.

    摘要翻译： 诸如GaAs / Al0.5Ga0.5As的光学透明量子阱结构被电偏置以产生二次非线性光学敏感性，其符号取决于施加的电偏置场的方向。 这种二次非线性光学敏感性对于增强三波相互作用特别有用，特别是当施加的偏置场在空间周期性地获得准共振相互作用时。 此外，量子阱材料优选地布置在光波导中，用于引导相互作用的波以减少不想要的衍射效应。

    Cladding for transverse-pumped solid-state laser
    56.
    发明授权
    Cladding for transverse-pumped solid-state laser 失效
    横向泵浦固体激光器的包层

    公开(公告)号：US4860295A

    公开(公告)日：1989-08-22

    申请号：US283431

    申请日：1988-12-12

    申请人： Robert L. Byer ,  Tso Y. Fan

    发明人： Robert L. Byer ,  Tso Y. Fan

    IPC分类号： H01S3/06

    CPC分类号： H01S3/0612 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/094084

    摘要： In a transverse-pumped, solid-state laser, a nonabsorptive cladding surrounds a gain medium. A single transverse mode, namely the TEM.sub.00 mode, is provided. The TEM.sub.00 mode has a cross-sectional diameter greater than a transverse dimension of the gain medium but less than a transverse dimension of the cladding. The required size of the gain medium is minimized while a threshold for laser output is lowered.

    摘要翻译： 在横向泵浦的固态激光器中，非吸收性包层围绕增益介质。 提供单一横向模式，即TEM00模式。 TEM00模式的横截面直径大于增益介质的横向尺寸，但小于包层的横向尺寸。 所需的增益介质尺寸最小化，而激光输出的阈值降低。

    Method and means for optically generating signals for use in monitoring an environment using tomographic techniques
    59.
    发明授权
    Method and means for optically generating signals for use in monitoring an environment using tomographic techniques 失效
    用于光学生成用于使用断层摄影技术监测环境的信号的方法和装置

    公开(公告)号：US4386854A

    公开(公告)日：1983-06-07

    申请号：US125126

    申请日：1980-02-27

    申请人： Robert L. Byer

    发明人： Robert L. Byer

    IPC分类号： G01N21/39 ,  G01S17/89 ,  G01N21/00

    CPC分类号： G01S17/89 ,  G01N21/39

    摘要： The environment within an area is monitored through use of tomographic reconstruction techniques. Signals for use in the tomographic reconstruction are generated optically by a laser which transmits signals to reflectors positioned about the area and then to detectors around or within the area. Several embodiments illustrate the method whereby the signals are generated by sequential illumination of detectors or by simultaneous illumination of detectors.

    摘要翻译： 通过使用层析成像技术监测区域内的环境。 用于断层重建的信号通过激光器光学产生，激光将信号传输到位于该区域周围的反射器，然后到该区域周围或区域内的探测器。 几个实施例示出了通过检测器的顺序照射或通过检测器的同时照明来产生信号的方法。