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92 条记录 (耗时 0.034 秒)

    Laser diode arrays with close beam offsets
    1.
    发明授权
    Laser diode arrays with close beam offsets 失效
    具有近光束偏移的激光二极管阵列

    公开(公告)号：US5631918A

    公开(公告)日：1997-05-20

    申请号：US156222

    申请日：1993-11-22

    申请人： Gregory J. Kovacs ,  Rose M. Donaldson ,  Harlan F. Chung ,  William J. Mosby ,  Eva E. Taggart ,  Thomas L. Paoli

    发明人： Gregory J. Kovacs ,  Rose M. Donaldson ,  Harlan F. Chung ,  William J. Mosby ,  Eva E. Taggart ,  Thomas L. Paoli

    IPC分类号： H01S3/23 ,  H01S5/00 ,  H01S5/022 ,  H01S5/026 ,  H01S5/40 ,  H01S3/02

    CPC分类号： H01S5/4025 ,  H01S5/4043

    摘要： The present invention concerns laser diode arrays having an accurately spaced offset in the laser beams emanating from their respective laser stripes, and methods of their manufacture. The first method involves the mounting of at least two laser diodes on a submount such that the axes of the laser stripes between the two respective diodes are accurately spaced. The second method concerns the placement of a position mark on each diode at a accurate distance from the axis of the laser stripe such that the mark is easily detectable from a side view. The two diodes are then mounted with the axes of their laser stripes accurately spaced from the relative positioning of the position marks. The third method concerns the manufacture of laser diodes whose laser stripe axes are accurately spaced from at least one side edge of the diodes. The array of diodes is constructed such that the laser stripe axes are accurately spaced from each other relative to the side edges of accurate distance from their respective axes.

    摘要翻译： 本发明涉及在从它们各自的激光条发出的激光束中具有精确间隔的偏移的激光二极管阵列及其制造方法。 第一种方法涉及在底座上安装至少两个激光二极管，使得两个相应二极管之间的激光条纹的轴线被精确地间隔开。 第二种方法涉及在距离激光条的轴线的准确距离处在每个二极管上放置位置标记，使得从侧视图可以容易地检测标记。 然后安装两个二极管，其激光条的轴线与位置标记的相对定位精确地间隔开。 第三种方法涉及激光二极管的制造，其激光条纹轴与二极管的至少一个侧边缘精确地间隔开。 二极管阵列被构造成使得激光条纹轴线相对于侧边缘彼此精确地相距离其相应轴线的准确距离。

    Index guided semiconductor laser diode with reduced shunt leakage currents
    5.
    发明授权
    Index guided semiconductor laser diode with reduced shunt leakage currents 失效
    具有降低分流漏电流的折射率半导体激光二极管

    公开(公告)号：US5717707A

    公开(公告)日：1998-02-10

    申请号：US367549

    申请日：1995-01-03

    申请人： Kevin J. Beernink ,  David P. Bour ,  Thomas L. Paoli ,  Ross D. Bringans ,  Gregory J. Kovacs

    发明人： Kevin J. Beernink ,  David P. Bour ,  Thomas L. Paoli ,  Ross D. Bringans ,  Gregory J. Kovacs

    IPC分类号： H01S5/00 ,  H01S5/20 ,  H01S5/227 ,  H01S5/34 ,  H01S5/343 ,  H01S3/19

    CPC分类号： B82Y20/00 ,  H01S5/20 ,  H01S5/34326 ,  H01S5/204 ,  H01S5/2059 ,  H01S5/227 ,  H01S5/3413

    摘要： An index-guided semiconductor laser diode made by impurity-induced layer disordering (IILD) of AlInP, GaInP and AlGaInP heterostructures. Several techniques for reducing parasitic leakage current via the n-type IILD regions, are described. These include removing the upper portions of the material outside the laser stripe, which can be accomplished by wet or dry etching of the material in a self-aligned manner. As an alternative, after formation of the waveguide, appropriately doped layers are grown over the disordered and as-grown regions of the structure to contact the active waveguide and simultaneously block parasitic shunt current from the disordered regions. Another method provides shallow inset insulating regions to replace the n-type disordered regions at the vicinity of a cap layer used to reduce a current barrier.

    摘要翻译： 由AlInP，GaInP和AlGaInP异质结构的杂质诱导层失调（IILD）制成的折射率半导体激光二极管。 描述了通过n型IILD区域减少寄生漏电流的几种技术。 这些包括去除激光条外部材料的上部，这可以通过以自对准的方式湿法或干蚀刻材料来实现。 作为替代方案，在形成波导之后，在结构的无序和生长区域上生长适当掺杂的层以接触有源波导并同时阻挡来自无序区域的寄生并联电流。 另一种方法提供浅插入绝缘区域来代替用于减少电流屏障的盖层附近的n型无序区域。

    Two section blue laser diode with reduced output power droop
    7.
    发明授权
    Two section blue laser diode with reduced output power droop 有权
    两部分蓝色激光二极管，输出功率降低

    公开(公告)号：US06526083B1

    公开(公告)日：2003-02-25

    申请号：US09972361

    申请日：2001-10-09

    申请人： Michael A. Kneissl ,  Thomas L. Paoli

    发明人： Michael A. Kneissl ,  Thomas L. Paoli

    IPC分类号： H01S5026

    CPC分类号： B82Y20/00 ,  H01S5/0265 ,  H01S5/0287 ,  H01S5/0625 ,  H01S5/06251 ,  H01S5/34333

    摘要： A III-V nitride blue laser diode has an amplifier region and a modulator region. The amplifier region has a constant current to keep the region near the lasing threshold. The modulator region has a small varying forward current or reverse bias voltage which controls the light output of the laser. This two section blue laser diode requires much lower power consumption than directly modulated lasers which reduces transient heating and “drooping” of the light output.

    摘要翻译： III-V族氮化物蓝色激光二极管具有放大器区域和调制器区域。 放大器区域具有恒定电流以保持该区域接近激光阈值。 调制器区域具有小的变化的正向电流或反向偏置电压，其控制激光器的光输出。 这两部分蓝色激光二极管比直接调制的激光器要低得多的功耗，减少了瞬态加热和“下垂”光输出。

    Raster output scanning system with a super-elliptic laser beam source
    9.
    发明授权
    Raster output scanning system with a super-elliptic laser beam source 失效
    光栅输出扫描系统具有超椭圆激光束源

    公开(公告)号：US5835253A

    公开(公告)日：1998-11-10

    申请号：US540140

    申请日：1995-10-06

    申请人： Thomas L. Paoli ,  Tibor Fisli

    发明人： Thomas L. Paoli ,  Tibor Fisli

    IPC分类号： B41J2/47 ,  G02B26/12 ,  G02B26/08

    CPC分类号： B41J2/471 ,  G02B26/12

    摘要： The optical path length of a raster output scanning (ROS) system is minimized by the use of a laser beam source for emitting a light beam with an enlarged divergence ratio. A super-elliptic light source beam with at least an 8:1 elliptic ratio of the major cross-scan axis to the minor scan axis will minimize the optical path length of a raster output scanning (ROS) system. The large divergence ratio of the super-elliptic light beam reduces the required focal lengths in the ROS optics while maintaining the desired numerical apertures and high energy throughput.

    摘要翻译： 光栅输出扫描（ROS）系统的光程长度通过使用用于发射具有扩大发散比的光束的激光束源来最小化。 具有至少8：1主扫描轴与次扫描轴的椭圆率的超椭圆光源光束将使光栅输出扫描（ROS）系统的光程长度最小化。 超椭圆光束的大发散比降低了ROS光学器件中所需的焦距，同时保持了所需的数值孔径和高能量通量。

    Apparatus spot position control in an output device employing a linear array of light sources
    10.
    发明授权
    Apparatus spot position control in an output device employing a linear array of light sources 失效
    在使用光源的线性阵列的输出装置中进行设备点位置控制

    公开(公告)号：US5574491A

    公开(公告)日：1996-11-12

    申请号：US195600

    申请日：1994-02-14

    申请人： Thomas L. Paoli

    发明人： Thomas L. Paoli

    IPC分类号： B41J2/44 ,  G01B11/00 ,  G02B26/10 ,  G05D3/12 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  B41J2/435

    CPC分类号： H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04758

    摘要： In a method and apparatus for raster scanning optical output device, such as a laser printer or the like, an array of independently addressable light emitting devices, such as an array of solid state lasers, is used to control spot position on an image plane in the slow scan direction. The array is disposed such that the spots emitted from each element of the array impinge the image plane displaced in the slow scan direction from one another. The total distance between all the spots is less than the distance between fast scan direction scan lines. Only a single element of the array is operated per scan line, thus only a single spot is formed on the image plane per scan line. Control of which of the elements of the array emits a light beam per scan line allows control of the spot position in the slow scan direction for that scan line.

    摘要翻译： 在诸如激光打印机等的光栅扫描光输出装置的方法和装置中，使用诸如固态激光器阵列的可独立寻址的发光装置的阵列来控制图像平面上的光点位置 慢扫描方向。 阵列被布置成使得从阵列的每个元件发射的光斑撞击在慢扫描方向上彼此移位的图像平面。 所有点之间的总距离小于快速扫描方向扫描线之间的距离。 每个扫描线仅对阵列的单个元件进行操作，因此在每个扫描线上的图像平面上仅形成一个点。 控制每个扫描线阵列中的哪个元件发射光束，可以控制该扫描线在慢扫描方向上的光点位置。