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    Quantum cascade laser
    1.
    发明授权
    Quantum cascade laser 失效
    量子级联激光器

    公开(公告)号：US5936989A

    公开(公告)日：1999-08-10

    申请号：US841059

    申请日：1997-04-29

    申请人： Federico Capasso ,  Alfred Yi Cho ,  Jerome Faist ,  Albert Lee Hutchinson ,  Gaetano Scamarcio ,  Carlo Sirtori ,  Deborah Lee Sivco

    发明人： Federico Capasso ,  Alfred Yi Cho ,  Jerome Faist ,  Albert Lee Hutchinson ,  Gaetano Scamarcio ,  Carlo Sirtori ,  Deborah Lee Sivco

    IPC分类号： H01S5/34 ,  H01S5/343 ,  H01S3/19

    CPC分类号： B82Y20/00 ,  H01S5/3402 ,  H01S5/34306 ,  H01S5/34313

    摘要： The core of the disclosed novel quantum cascade (QC) laser comprises a multiplicity of nominally identical repeat units, with a given repeat unit comprising a superlattice active region and a carrier injector region. Associated with the superlattice active region is an upper and a lower energy miniband, with the lasing transition being the transition from the lower edge of the upper miniband to the upper edge of the lower miniband. The injector facilitates carrier transport from the lower miniband to the upper miniband of the adjacent downstream repeat unit. QC lasers according to this invention can be designed to emit in the infrared, e.g., in the wavelength region 3-15 .mu.m, and can have high power.

    摘要翻译： 公开的新颖量子级联（QC）激光器的核心包括多个名义上相同的重复单元，其中给定的重复单元包括超晶格有源区和载流子注入区。 与超晶格有源区相关联的是上能和下能量的迷你波导，其中激光跃迁是从上微型小型飞机的下边缘到下部小型飞机的上边缘的过渡。 注射器便于载体从相邻的下游重复单元的下部微型飞行器到上部小型飞机传送。 根据本发明的QC激光器可以设计成在红外线中发射，例如在3-15μm的波长区域中，并且可以具有高功率。

    System for optical fiber strain measure
    4.
    发明授权
    System for optical fiber strain measure 有权
    光纤应变测量系统

    公开(公告)号：US08234081B2

    公开(公告)日：2012-07-31

    申请号：US12563920

    申请日：2009-09-21

    申请人： Maurizio Dabbicco ,  Gaetano Scamarcio ,  Simona Ottonelli ,  Angela Intermite ,  Branimir Radisavljevic

    发明人： Maurizio Dabbicco ,  Gaetano Scamarcio ,  Simona Ottonelli ,  Angela Intermite ,  Branimir Radisavljevic

    IPC分类号： G01L1/24 ,  G06F17/00

    CPC分类号： G01B11/18 ,  G01B11/16 ,  G01M11/085

    摘要： A system measures the strain of an object. The system includes a laser source for generating an output radiation, a strainable optical fiber having first and second facets, and means for calculating a measure of a strain of the optical fiber. The first facet is coupled to the laser source to receive the output radiation and transmit a guided radiation over the optical fiber towards the second facet. The second facet is adapted to receive the guided radiation and to reflect a corresponding reflected radiation towards the first facet. The laser source is a self-mixing type adapted to receive at least part of the reflected radiation and to mix the output radiation with the received radiation. The calculating means calculate the measure of the strain of the optical fiber based on a self-mixing effect in the laser source that is caused by the linear displacement of the second section.

    摘要翻译： 系统测量物体的应变。 该系统包括用于产生输出辐射的激光源，具有第一和第二小面的可变形光纤，以及用于计算光纤的应变测量的装置。 第一面耦合到激光源以接收输出辐射，并将引导的辐射传输到光纤上朝向第二面。 第二小面适于接收被引导的辐射并且朝向第一面反射相应的反射辐射。 激光源是适于接收至少部分反射辐射并将输出辐射与接收到的辐射混合的自混合类型。 计算装置基于由第二部分的线性位移引起的激光源中的自混合效应来计算光纤的应变的测量。

    SYSTEM FOR OPTICAL FIBER STRAIN MEASURE
    5.
    发明申请
    SYSTEM FOR OPTICAL FIBER STRAIN MEASURE 有权
    光纤应变测量系统

    公开(公告)号：US20100076700A1

    公开(公告)日：2010-03-25

    申请号：US12563920

    申请日：2009-09-21

    申请人： Maurizio Dabbicco ,  Gaetano Scamarcio ,  Simona Ottonelli ,  Angela Intermite ,  Branimir Radisavljevic

    发明人： Maurizio Dabbicco ,  Gaetano Scamarcio ,  Simona Ottonelli ,  Angela Intermite ,  Branimir Radisavljevic

    IPC分类号： G06F19/00 ,  G01L1/24 ,  G02B6/00

    CPC分类号： G01B11/18 ,  G01B11/16 ,  G01M11/085

    摘要： A system measures the strain of an object. The system includes a laser source for generating an output radiation, a strainable optical fiber having first and second facets, and means for calculating a measure of a strain of the optical fiber. The first facet is coupled to the laser source for receiving the output radiation and for transmitting therefrom a guided radiation over the optical fiber towards the second facet. The second facet is adapted to receive the guided radiation and to reflect a corresponding reflected radiation towards the first facet. The laser source is a self-mixing type adapted to receive at least part of the reflected radiation and to mix the output radiation with the received radiation. The calculating means calculate the measure of the strain of the optical fiber through the linear displacement of the second section measured by the self-mixing effect in the laser source.

    摘要翻译： 系统测量物体的应变。 该系统包括用于产生输出辐射的激光源，具有第一和第二小面的可变形光纤，以及用于计算光纤的应变测量的装置。 第一小面被耦合到激光源，用于接收输出辐射并且用于从该光纤向第二小面传输被引导的辐射。 第二小面适于接收被引导的辐射并且朝向第一面反射相应的反射辐射。 激光源是适于接收至少部分反射辐射并将输出辐射与接收到的辐射混合的自混合类型。 计算装置通过激光源中的自混合效应测量的第二部分的线性位移来计算光纤的应变的测量。