利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.02 秒)

    High power single mode laser and method of fabrication
    2.
    发明授权
    High power single mode laser and method of fabrication 有权
    大功率单模激光器及其制造方法

    公开(公告)号：US06432735B1

    公开(公告)日：2002-08-13

    申请号：US09602931

    申请日：2000-06-23

    申请人： Si Hyung Cho ,  William C. Dautremont-Smith ,  Sun-Yuan Huang

    发明人： Si Hyung Cho ,  William C. Dautremont-Smith ,  Sun-Yuan Huang

    IPC分类号： H01L2906

    CPC分类号： H01S5/227 ,  H01S5/0655 ,  H01S5/2036 ,  H01S5/2218

    摘要： A semiconductor laser having a single transverse mode operation. Optical power higher than that generated by conventional pump lasers is achieved by widening the gain medium without inducing the second transverse mode. This is accomplished by providing a small refractive index difference between active and blocking regions of the laser. The refractive index difference between the laser active region material and the laser blocking region material at the fundamental frequency is less than about 0.029.

    摘要翻译： 具有单横模操作的半导体激光器。 通过在不引起第二横向模式的情况下加宽增益介质来实现比常规泵浦激光器产生的光功率更高的光功率。 这通过在激光器的有源和阻挡区域之间提供小的折射率差来实现。 激光有源区材料与激光阻挡区域材料之间的基频处的折射率差小于约0.029。

    Optical device with increased spectral width
    4.
    发明授权
    Optical device with increased spectral width 有权
    具有增加光谱宽度的光学装置

    公开(公告)号：US06567446B1

    公开(公告)日：2003-05-20

    申请号：US09640289

    申请日：2000-08-16

    申请人： Sun-Yuan Huang ,  Kenneth L. Bacher ,  Si Hyung Cho ,  William Crossley Dautremont-Smith

    发明人： Sun-Yuan Huang ,  Kenneth L. Bacher ,  Si Hyung Cho ,  William Crossley Dautremont-Smith

    IPC分类号： H01S500

    CPC分类号： H01S5/12 ,  H01S5/1064 ,  H01S5/2275

    摘要： The invention is an optical apparatus and method of fabrication wherein an optical device such as a semiconductor laser includes a grating and a waveguide optically coupled to the grating. At least a portion of the waveguide coupled to the grating has a width which varies along the length of the waveguide in such a manner as to broaden the spectral line width of light output from the device. The width can be varied according to linear, sinusoidal or saw-tooth functions. A broadened line width permits pumping of a Raman amplifier at a high power without inducing any significant Brillouin Scattering.

    摘要翻译： 本发明是一种光学装置和制造方法，其中诸如半导体激光器的光学装置包括光栅和光学耦合到光栅的波导。 耦合到光栅的波导的至少一部分具有沿着波导长度变化的宽度，以便扩大从该器件输出的光的谱线宽度。 宽度可以根据线性，正弦曲线或锯齿功能而变化。 扩大的线宽允许以高功率泵浦拉曼放大器，而不会引起任何显着的布里渊散射。

    Packaging assembly for a laser array module
    5.
    发明授权
    Packaging assembly for a laser array module 失效
    激光阵列模块的包装组件

    公开(公告)号：US5734771A

    公开(公告)日：1998-03-31

    申请号：US736701

    申请日：1996-10-28

    申请人： Sun-Yuan Huang

    发明人： Sun-Yuan Huang

    IPC分类号： G02B6/42

    CPC分类号： G02B6/4249

    摘要： An optical subassembly comprises a two-dimensional semiconductor laser array having a plurality of laser diodes arranged in rows and columns. The laser diodes are configured to provide laser lights at a first and a second direction. A first lenslet module is disposed adjacent the semiconductor laser array, such that light emitted from the laser array in the first direction is collected by the lenslet module. The lenslet module is further configured to focus the collected light at a given first focal point that may be disposed on a receiving end of a fiber optic. A second lenslet module is disposed adjacent the semiconductor laser array, such that light emitted from the laser array in the second direction is collected by the second lenslet module. The second lenslet module is further configured to focus said collected light at a given second focal point disposed at the receiving end of a photodetector.

    摘要翻译： 光学子组件包括具有排列成行和列的多个激光二极管的二维半导体激光器阵列。 激光二极管被配置成在第一和第二方向上提供激光。 第一小透镜模块邻近半导体激光器阵列设置，使得从第一方向从激光器阵列发射的光被小透镜模块收集。 小透镜模块还被配置成将收集的光聚焦在可以设置在光纤的接收端上的给定的第一焦点处。 第二小透镜模块设置在半导体激光器阵列附近，使得从第二方向从激光器阵列发射的光被第二小透镜模块收集。 第二小透镜模块还被配置为将所收集的光聚焦在设置在光电检测器的接收端的给定的第二焦点处。

    Transient protection circuit
    6.
    发明授权
    Transient protection circuit 失效
    瞬态保护电路

    公开(公告)号：US5610931A

    公开(公告)日：1997-03-11

    申请号：US570738

    申请日：1995-12-11

    申请人： Sun-Yuan Huang

    发明人： Sun-Yuan Huang

    IPC分类号： H01S5/042 ,  H01S5/068 ,  H01S3/00

    CPC分类号： H01S5/042 ,  H01S5/06825 ,  H01S5/0428

    摘要： Semiconductor lasers are susceptible to harmful high currents or high voltage electrical transients. Semiconductor pump lasers are especially vulnerable to electrical transients under normal operation because of the large continuous wave current needed to drive the semiconductor pump laser to achieve a high optical power. A protection circuit for 980 nm pump lasers using a non-linear voltage-dependent resistance means which limits drive current based on a drive voltage powering a laser diode is demonstrated to be effective in guarding the laser against harmful electrical transients.

    摘要翻译： 半导体激光器容易受到有害高电流或高电压电瞬变的影响。 由于驱动半导体泵浦激光器达到高光功率所需的大的连续波电流，半导体泵浦激光器在正常工作下特别容易受到电瞬变影响。 使用基于对激光二极管供电的驱动电压来限制驱动电流的非线性电压依赖电阻装置的980nm泵浦激光器的保护电路被证明是有效地防止激光器有害的电瞬态。

    High-power and high efficiency large area single-mode laser
    7.
    发明授权
    High-power and high efficiency large area single-mode laser 有权
    大功率高效大面积单模激光器

    公开(公告)号：US06574262B1

    公开(公告)日：2003-06-03

    申请号：US09545473

    申请日：2000-04-07

    申请人： William Crossley Dautremont-Smith ,  Sun-Yuan Huang

    发明人： William Crossley Dautremont-Smith ,  Sun-Yuan Huang

    IPC分类号： H01S308

    CPC分类号： H01S5/146 ,  H01S3/094003 ,  H01S5/0654 ,  H01S5/147 ,  H01S5/2036

    摘要： The present invention is directed to a large area single-mode (LASM) laser system that provides a laser having a wider gain region and thus a higher power output without introducing the second transverse mode into the optical signal. The laser system of the present invention also reduces the laser junction temperature, thereby improving the reliability of the laser and of laser systems constructed therefrom. The present invention also provides a stabilized spectrum in an optical signal by providing a means for feeding back from an external fiber grating to the laser only a single mode and a selective spectrum of an optical signal generated by the laser.

    摘要翻译： 本发明涉及一种大面积单模（LASM）激光系统，其提供具有更宽增益区域的激光器，从而提供较高功率输出，而不将第二横向模式引入光信号。 本发明的激光系统还降低了激光结温度，从而提高了激光器及其构成的激光系统的可靠性。 本发明还通过提供一种用于从外部光纤光栅向激光器仅反射单一模式和由激光产生的光学信号的选择光谱的装置提供光信号中的稳定光谱。

    Fiber lens for use with a confocal lens system
    8.
    发明授权
    Fiber lens for use with a confocal lens system 失效
    用于共焦透镜系统的光纤透镜

    公开(公告)号：US5946140A

    公开(公告)日：1999-08-31

    申请号：US36641

    申请日：1998-03-06

    申请人： Sun-Yuan Huang

    发明人： Sun-Yuan Huang

    IPC分类号： G02B3/06 ,  G02B21/00 ,  G02B27/30

    CPC分类号： G02B21/0072 ,  G02B3/06

    摘要： A lens system for use with elliptical optical sources includes a spherical fiber lens disposed beyond a conventional confocal lens arrangement. The spherical fiber lens is disposed in the optical path at the point where the slow axis (X ray) crosses the fast axis (Y ray); the rays will be "circular" and will thereafter propagate as a circular wavefront. The coupling efficiency of such a system is thus improved from approximately 40% to over 80%. The radius of the spherical endface of the fiber lens may be adjusted to improve the coupling efficiency. The spherical fiber lens is easily formed by fusing a section of "coreless" silica fiber onto the endface of a conventional single mode fiber. The end of the silica fiber is thereafter prepared (by heating, etching, polishing, or laser machining, for example) to provide a spherical endface with the desired radius.

    摘要翻译： 用于椭圆光源的透镜系统包括设置在常规共焦透镜装置之外的球形光纤透镜。 球形光纤透镜在慢轴（X射线）穿过快轴（Y射线）的位置处设置在光路中。 光线将是“圆形”，然后将其作为圆形波前传播。 因此，这种系统的耦合效率从大约40％提高到超过80％。 可以调节光纤透镜的球形端面的半径以提高耦合效率。 通过将“无芯”硅胶纤维的一部分熔合到常规单模光纤的端面上来容易地形成球形光纤透镜。 此后，制备（通过加热，蚀刻，抛光或激光加工）二氧化硅纤维的末端以提供具有所需半径的球形端面。

    Cylindrical lenses for alignment of optical sources and destinations
    9.
    发明授权
    Cylindrical lenses for alignment of optical sources and destinations 有权
    用于对准光源和目的地的圆柱透镜

    公开(公告)号：US6014270A

    公开(公告)日：2000-01-11

    申请号：US197982

    申请日：1998-11-23

    申请人： Ernest Eisenhardt Bergmann ,  Sun-Yuan Huang

    发明人： Ernest Eisenhardt Bergmann ,  Sun-Yuan Huang

    IPC分类号： G02B13/00 ,  G02B3/06

    CPC分类号： G02B13/0095

    摘要： An apparatus is disclosed for aligning optical beams from a source to a destination. The apparatus comprises a first pair of cylindrical lenses comprised of a first cylindrical lens and a second cylindrical lens. The first and second cylindrical lenses are adapted to slide up and down or back and forth along first and second line segments. The first and second line segments can be parallel to each other. A second pair of cylindrical lenses is disclosed comprised of a third cylindrical lens and a fourth cylindrical lens. The third and fourth cylindrical lens are adapted to slide up and down or back and forth along a third and fourth line segments. The first, second, third, and fourth line segments can be parallel to each other. The first, second, third, and fourth cylindrical lenses can adapted to slide between an optical source and an optical destination. The first and second cylindrical lenses, and the third and fourth lenses respectively can be closely adjacent one another. The cylindrical lenses can be constructed in various manners including cutting out portions of original cylinders and providing index of refraction material variations. A first mirror and/or a second mirror can also be provided to provide a multiple pass through embodiment.

    摘要翻译： 公开了一种用于将来自源到目的地的光束对准的装置。 该装置包括由第一柱面透镜和第二柱面透镜组成的第一对柱面透镜。 第一和第二柱面透镜适于沿着第一和第二线段上下滑动或前后滑动。 第一和第二线段可以彼此平行。 公开了第二对柱面透镜，其包括第三柱面透镜和第四柱面透镜。 第三和第四柱面透镜适于沿着第三和第四线段上下滑动或前后滑动。 第一，第二，第三和第四线段可以彼此平行。 第一，第二，第三和第四柱面透镜可以适于在光源和光学目的地之间滑动。 第一和第二柱面透镜以及第三和第四透镜分别可以彼此紧密相邻。 圆柱形透镜可以以各种方式构造，包括切割原始圆柱体的部分并提供折射材料变化指数。 还可以提供第一反射镜和/或第二反射镜以提供多次通过的实施例。