利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.027 秒)

    METHOD AND APPARATUS FOR MICROMACHINING BULK TRANSPARENT MATERIALS USING LOCALIZED HEATING BY NONLINEARLY ABSORBED LASER RADIATION, AND DEVICES FABRICATED THEREBY
    3.
    发明申请
    METHOD AND APPARATUS FOR MICROMACHINING BULK TRANSPARENT MATERIALS USING LOCALIZED HEATING BY NONLINEARLY ABSORBED LASER RADIATION, AND DEVICES FABRICATED THEREBY 审中-公开
    使用非线性吸收激光辐射使用本地加热的微型透明材料的方法和装置及其制造的器件

    公开(公告)号：US20090320529A1

    公开(公告)日：2009-12-31

    申请号：US12534202

    申请日：2009-08-03

    申请人： Chris Schaffer ,  Andre Brodeur ,  Rafael R. Gattass ,  Jonathan B. Ashcom ,  Eric Mazur

    发明人： Chris Schaffer ,  Andre Brodeur ,  Rafael R. Gattass ,  Jonathan B. Ashcom ,  Eric Mazur

    IPC分类号： C03B37/09

    CPC分类号： C03C23/0025 ,  G02B6/125 ,  G02B6/13 ,  G02B2006/1215

    摘要： Thermal 3-D microstructuring of photonic structures is provided by depositing laser energy by non-linear absorption into a focal volume about each point of a substrate to be micromachined at a rate greater than the rate that it diffuses thereout to produce a point source of heat in a region of the bulk larger than the focal volume about each point that structurally alters the region of the bulk larger than the focal volume about each point, and by dragging the point source of heat thereby provided point-to-point along any linear and non-linear path to fabricate photonic structures in the bulk of the substrate. Exemplary optical waveguides and optical beamsplitters are thermally micromachined in 3-D in the bulk of a glass substrate. The total number of pulses incident to each point is controlled, either by varying the rate that the point source of heat is scanned point-to-point and/or by varying the repetition rate of the laser, to select the mode supported by the waveguide or beamsplitter to be micromachined. A wide range of passive and active optical and other devices may be thermally micromachined.

    摘要翻译： 光子结构的热3-D微结构化是通过将激光能量通过非线性吸收沉积到围绕基底的每个点的焦点体积中以将其以大于其扩散的速率的速率微加工而产生点热源 在围绕每个点的体积大于焦点体积的区域中，其结构上改变大于围绕每个点的焦点体积的体积的区域，并且通过拖动点光源，从而沿着任何线性和 非线性路径以在基底的大部分中制造光子结构。 示例性光波导和光分束器在玻璃基板的主体中在3-D中热微加工。 通过改变点对点源点对点速率和/或通过改变激光器的重复频率来控制入射到每个点的脉冲总数，以选择波导支持的模式 或分束器进行微加工。 多种无源和有源光学和其他器件可能是热微加工的。

    SHORT PULSED IR FIBER LASER AT WAVELENGTH > 2 um
    7.
    发明申请
    SHORT PULSED IR FIBER LASER AT WAVELENGTH > 2 um 有权
    短波脉冲红外光纤激光波长> 2 um

    公开(公告)号：US20130188660A1

    公开(公告)日：2013-07-25

    申请号：US13742566

    申请日：2013-01-16

    申请人： Leslie Brandon Shaw ,  Rafael R. Gattass ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

    发明人： Leslie Brandon Shaw ,  Rafael R. Gattass ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

    IPC分类号： H01S3/00

    CPC分类号： H01S3/0057 ,  H01S3/0092 ,  H01S3/03 ,  H01S3/0672 ,  H01S3/06725 ,  H01S3/06758 ,  H01S3/094046 ,  H01S3/108 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/30 ,  H01S3/302 ,  H01S5/0057 ,  H01S2301/085

    摘要： A method of generating ultrashort pulses with wavelengths greater than 2 μm comprising a short pulse diode laser or fiber laser operating at a wavelength of 1 μm or greater with a pulse width of 10 ps or greater, one or more amplification stages to increase the peak power of the pulsed source, a nonlinear fiber stage whereby the dispersion of the nonlinear fiber is anomalous at the pulsed source wavelength such that the fiber breaks up the pulse into a series of sub-ps pulse train through modulation instability which may be seeded by spontaneous noise which are then wavelength shifted in one or more stages by soliton self frequency shift in anomalous dispersion fiber or Raman in normal dispersion fiber and amplified in one or more stages to generate a high peak power ultrashort pulse (

    摘要翻译： 一种产生波长大于2um的超短脉冲的方法，包括以10ps或更大的脉冲宽度在1mum或更大的波长下工作的短脉冲二极管激光器或光纤激光器，一个或多个放大级以增加峰值功率 的非线性光纤级，其中非线性光纤的色散在脉冲源波长处是异常的，使得光纤通过调制不稳定将脉冲分解成一系列子ps脉冲串，其可以通过自发噪声 然后它们在一个或多个阶段通过在正常色散光纤中的异常色散光纤或拉曼中的孤子自移频进行波长偏移，并在一个或多个阶段中放大，以在波长的波长处产生高峰值功率超短脉冲（<1ps）源 2.4小时以上。

    IR fiber broadband mid-IR light source
    9.
    发明授权
    IR fiber broadband mid-IR light source 有权
    红外光纤宽带中红外光源

    公开(公告)号：US09213215B2

    公开(公告)日：2015-12-15

    申请号：US13742563

    申请日：2013-01-16

    申请人： Leslie Brandon Shaw ,  Rafael R. Gattass ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

    发明人： Leslie Brandon Shaw ,  Rafael R. Gattass ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

    IPC分类号： G02B6/00 ,  G02F1/35 ,  G02F1/365

    CPC分类号： G02F1/3532 ,  G02F1/365 ,  G02F2001/3528

    摘要： A method of generating a supercontinuum in chalcogenide fiber with a pump light comprising a short pulse fiber laser or diode laser operating with a wavelength of 1.0 μm or greater that is wavelength shifted through a nonlinear fiber one or more times and amplified one or more times and launched into a chalcogenide fiber whereby the spectrum is broadened in the chalcogenide fiber through various nonlinear processes to generate a supercontinuum within the mid-IR from 1.5 to greater than 5 μm.

    摘要翻译： 一种利用泵浦光产生超连续谱的方法，所述泵浦光包括通过非线性光纤波长偏移一次或多次的波长为1.0μm或更大的波长的短脉冲光纤激光器或二极管激光器或二极管激光器，并放大一次或多次， 发射成硫族化物纤维，其中通过各种非线性方法在硫族化物纤维中扩展光谱，以在中间IR内产生从1.5到大于5μm的超连续谱。