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公开(公告)号：US20110170098A1
公开(公告)日：2011-07-14
申请号：US12677903
申请日：2008-09-01
Applicant: Erwan Normand
Inventor： Erwan Normand
CPC classification number: G01J3/28 , G01J3/2823 , G01N21/314 , G01N21/3504 , G01N2021/1793 , G01N2021/3513
Abstract: A hyperspectral sensor or imager comprising a laser for illuminating a scene and a detector for detecting light emitted by the laser and transmitted through the scene, wherein the laser is a chirped laser arranged to output multiple pulses having different wavelength ranges, the multiple pulses being used to form an extended continuous spectrum for illuminating the scene.
Abstract translation: 一种高光谱传感器或成像器，包括用于照亮场景的激光器和用于检测由激光器发射并透射通过场景的光的检测器，其中激光器是被布置为输出具有不同波长范围的多个脉冲的啁啾激光器，所使用的多个脉冲 以形成用于照亮场景的扩展的连续光谱。
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公开(公告)号：US20050157303A1
公开(公告)日：2005-07-21
申请号：US10511041
申请日：2003-04-08
Applicant: Nigel Langford , Geoffrey Duxbury , Erwan Normand
Inventor： Nigel Langford , Geoffrey Duxbury , Erwan Normand
CPC classification number: G01J3/4338 , B82Y20/00 , G01N21/39 , G01N2021/399 , H01S5/06216 , H01S5/0622 , H01S5/3402
Abstract: A method apparatus for sensing gases using a semiconductor diode laser spectrometer, the method comprising: introducing a sample gas into a non-resonant optical cell (17); applying a step function electrical pulse (19) to semiconductor diode laser (20) to cause the laser (20) to output a continuous wavelength chirp for injecting (16a) into the optical cell injecting (16a) the wavelengh chirp into the optical cell (17); using the wavelength variation provided by the wavelength detecting (23) light emitted from the cell (17), wherein a chirp rate is selected to substantially prevent light interference occuring in the optical cell (17).
Abstract translation: 一种使用半导体二极管激光光谱仪检测气体的方法装置，所述方法包括：将样品气体引入非共振光学单元（17）中; 对半导体二极管激光器（20）施加阶梯函数电脉冲（19），以使激光器（20）输出连续波长线性调频脉冲，用于将波导注入（16a）中的波长啁啾注入到光学单元中 细胞（17）; 使用从单元（17）发射的波长检测（23）光提供的波长变化，其中选择啁啾率以基本上防止在光学单元（17）中发生的光干涉。
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公开(公告)号：US08411267B2
公开(公告)日：2013-04-02
申请号：US12677903
申请日：2008-09-01
Applicant: Erwan Normand
Inventor： Erwan Normand
IPC: G01J3/00
CPC classification number: G01J3/28 , G01J3/2823 , G01N21/314 , G01N21/3504 , G01N2021/1793 , G01N2021/3513
Abstract: A hyperspectral sensor or imager comprising a laser for illuminating a scene and a detector for detecting light emitted by the laser and transmitted through the scene, wherein the laser is a chirped laser arranged to output multiple pulses having different wavelength ranges, the multiple pulses being used to form an extended continuous spectrum for illuminating the scene.
Abstract translation: 一种高光谱传感器或成像器，包括用于照亮场景的激光器和用于检测由激光器发射并透射通过场景的光的检测器，其中激光器是被布置为输出具有不同波长范围的多个脉冲的啁啾激光器，所使用的多个脉冲 以形成用于照亮场景的扩展的连续光谱。
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公开(公告)号：US07283243B2
公开(公告)日：2007-10-16
申请号：US10511041
申请日：2003-04-08
Applicant: Nigel Langford , Geoffrey Duxbury , Erwan Normand
Inventor： Nigel Langford , Geoffrey Duxbury , Erwan Normand
IPC: G01N21/00
CPC classification number: G01J3/4338 , B82Y20/00 , G01N21/39 , G01N2021/399 , H01S5/06216 , H01S5/0622 , H01S5/3402
Abstract: A method apparatus for sensing gases using a semiconductor diode laser spectrometer, the method comprising: introducing a sample gas into a non-resonant optical cell (17); applying a step function electrical pulse (19) to a semiconductor diode laser (20) to cause the laser (20) to output a continuous wavelength chirp for injecting (16a) into the optical cell (17); injecting (16a) the wavelength chirp into the optical cell (17); using the wavelength variation provided by the wavelength chirp as a wavelength scan, and detecting (23) light emitted from the cell (17), wherein a chirp rate is selected to substantially prevent light interference occurring in the optical cell (17).
Abstract translation: 一种使用半导体二极管激光光谱仪检测气体的方法装置，所述方法包括：将样品气体引入非共振光学单元（17）中; 对半导体二极管激光器（20）施加阶梯函数电脉冲（19），以使激光器（20）输出用于将光（16）注入的连续波长线性调频脉冲（16a）。 将波长啁啾注入（16a）到所述光学单元（17）中; 使用由波长线性调频脉冲提供的波长变化作为波长扫描，并且检测（23）从单元（17）发射的光，其中选择啁啾率以基本上防止在光学单元（17）中发生的光干涉。
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