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    Compact multipass optical isolator
    1.
    发明申请
    Compact multipass optical isolator 审中-公开
    紧凑型多通道光隔离器

    公开(公告)号：US20070091412A1

    公开(公告)日：2007-04-26

    申请号：US11446584

    申请日：2006-06-02

    申请人： Masud Azimi ,  Daryoosh Vakhshoori ,  Kevin Knopp ,  Gregory Rhodes ,  Peidong Wang

    发明人： Masud Azimi ,  Daryoosh Vakhshoori ,  Kevin Knopp ,  Gregory Rhodes ,  Peidong Wang

    IPC分类号： G02F1/09

    CPC分类号： G02F1/093 ,  G02F2201/17

    摘要： An optical isolator for transmitting light in a first direction along an optical pathway and blocking light in a second direction along an optical pathway. The optical isolator includes an input polarizer having a pass axis at a first angle, an output polarizer having a pass axis at a second angle, a Faraday rotator material between the polarizers having a Verdet constant and an axis of maximum length therethrough, generation means for generating a magnetic field around and inside the rotator material, and at least one reflector configured to define an optical length through the rotator material which is longer than the axis therethrough. The optical pathway length through the rotator material, the magnetic field strength, and the Verdet constant are selected so as to rotate light through the Faraday rotator material from the first angle to the second angle.

    摘要翻译： 一种光隔离器，用于沿着光学路径在第一方向上传输光，并沿着光学路径沿第二方向阻挡光。 光隔离器包括具有第一角度的通过轴的输入偏振器，具有第二角度的通过轴的输出偏振器，具有Verdet常数的偏振器和穿过其的最大长度轴之间的法拉第旋转器材料， 在旋转体材料周围和内部产生磁场，以及至少一个反射器，其构造成通过旋转体材料限定通过其的轴线的光学长度。 选择通过旋转体材料的光学路径长度，磁场强度和Verdet常数，以便通过法拉第旋转器材料将光从第一角度旋转到第二角度。

    Method and apparatus for conducting Raman spectroscopy
    2.
    发明申请
    Method and apparatus for conducting Raman spectroscopy 有权

    公开(公告)号：US20070002319A1

    公开(公告)日：2007-01-04

    申请号：US11475582

    申请日：2006-06-27

    申请人： Kevin Knopp ,  Peidong Wang ,  Masud Azimi ,  Daryoosh Vakhshoori

    发明人： Kevin Knopp ,  Peidong Wang ,  Masud Azimi ,  Daryoosh Vakhshoori

    IPC分类号： G01J3/44 ,  G01N21/65

    CPC分类号： G01J3/02 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0227 ,  G01J3/0232 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/44 ,  G01J2003/1213 ,  G01N21/65 ,  G01N2021/656

    摘要： A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a camera for capturing an image; a light analyzer for analyzing a Raman signature; and a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, (ii) capturing an image of the specimen and directing that image to the camera, and (iii) directing the Raman signature of the specimen to the light analyzer. A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a camera for capturing an image; a light analyzer for analyzing a Raman signature; a first light path for delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen; a second light path for capturing an image of the specimen and directing that image to the camera; a third light path for directing the Raman signature of the specimen to the light analyzer; wherein the a least a portion of the first light path, the second light path and the third light path are coaxial with one another. A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a light analyzer for analyzing a Raman signature; a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, and (ii) directing the Raman signature of the specimen to the light analyzer; wherein the assembly further comprises a probe body for housing the at least a portion of the light path, and a window, with the light path extending through the window; and further wherein the probe body further comprises a shutter/wiper disposed adjacent to the window. A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a light analyzer for analyzing a Raman signature; a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, and (ii) directing the Raman signature of the specimen to the light analyzer; and wherein the light analyzer comprises a transmitter for transmitting information using an Internet Web protocol. A method for identifying the nature of a specimen, the method comprising: providing a Raman probe assembly comprising: a light source for generating laser excitation light; a camera for capturing an image; a light analyzer for analyzing a Raman signature; a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, (ii) capturing an image of the specimen and directing that image to the camera, and (iii) directing the Raman signature of the specimen to the light analyzer wherein the assembly further comprises a probe body for housing the at least a portion of the light path, and a window, with the light path extending through the window; wherein the probe body further comprises a shutter/wiper disposed adjacent to the window; wherein the assembly is carried by a remote controlled robot; providing a base station for receiving the image, and for remotely controlling the robot, and for receiving information from the light analyzer; navigating the remote control robot from the base station to a position adjacent to the specimen; opening the shutter/wiper; using the camera to aim the probe body at the specimen; energizing the light source so that the laser excitation light is directed at the specimen; and analyzing the return light passed to the light analyzer so as to determine of the nature of the specimen.

    High spectral fidelity laser source with low FM-to-AM conversion and narrowband tunability
    3.
    发明申请
    High spectral fidelity laser source with low FM-to-AM conversion and narrowband tunability 失效
    具有低FM到AM转换和窄带可调性的高光谱保真度激光源

    公开(公告)号：US20050036535A1

    公开(公告)日：2005-02-17

    申请号：US10799304

    申请日：2004-03-12

    申请人： Kevin Knopp ,  Daryoosh Vakhshoori ,  Masud Azimi ,  Peidong Wang

    发明人： Kevin Knopp ,  Daryoosh Vakhshoori ,  Masud Azimi ,  Peidong Wang

    IPC分类号： H01S3/04 ,  H01S3/08 ,  H01S5/00 ,  H01S5/02 ,  H01S5/022 ,  H01S5/024 ,  H01S5/0683 ,  H01S5/183 ,  H01S5/40

    CPC分类号： H01S5/02284 ,  H01S5/0064 ,  H01S5/0078 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/024 ,  H01S5/0683 ,  H01S5/183 ,  H01S5/4006 ,  H01S5/50 ,  H01S2301/02 ,  H01S2301/163

    摘要： A laser source for generating amplified and filtered optical output, comprising a VCSEL, a power optical amplifier, and a filter. A laser source for generating amplified and filtered optical output, comprising a first mirror and a second mirror forming a cavity, an optical amplifier disposed in the cavity, and filter means for filtering ASE generated and amplified by the optical amplifier. A system for generating amplified and filtered optical output, comprising an optical platform having electrical connections and a fiber optic connection, a VCSEL configured to generate seed light, an optical amplifier configured to receive and amplify seed light to generate power boosted ASE and a filter configured to reduce background noise from the power boosted ASE. A method of generating optical output having high optical power with high spectral fidelity, comprising generating seed light, amplifying seed light, and filtering the amplified optical output to reduce background noise.

    摘要翻译： 一种用于产生放大和滤波的光输出的激光源，包括VCSEL，功率光放大器和滤波器。 一种用于产生放大和滤波的光输出的激光源，包括第一反射镜和形成空腔的第二反射镜，设置在空腔中的光放大器和用于滤光由光放大器生成和放大的ASE的滤波器装置。 一种用于产生放大和滤波的光输出的系统，包括具有电连接和光纤连接的光学平台，被配置为产生种子光的VCSEL，配置成接收和放大种子光以产生增强功率的ASE的光放大器和配置的滤波器 以降低功率提升的ASE背景噪声。 一种产生具有高光谱保真度的高光功率的光输出的方法，包括产生种子光，放大种子光，并对放大的光输出进行滤波以降低背景噪声。

    Method and apparatus for conducting Raman spectroscopy
    7.
    发明申请
    Method and apparatus for conducting Raman spectroscopy 有权

    公开(公告)号：US20050248759A1

    公开(公告)日：2005-11-10

    申请号：US11117940

    申请日：2005-04-29

    申请人： Peidong Wang ,  Daryoosh Vakhshoori ,  Yu Shen ,  Kevin Knopp ,  Masud Azimi

    发明人： Peidong Wang ,  Daryoosh Vakhshoori ,  Yu Shen ,  Kevin Knopp ,  Masud Azimi

    IPC分类号： G01J3/44 ,  G01N21/65

    CPC分类号： G01N21/65 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/44 ,  G01J2003/1213 ,  G01N2021/656

    摘要： In another form of the present invention, there is provided a Raman probe comprising: a first optical fiber for receiving laser excitation light from a light source and transmitting the same; a first filter for receiving light from the first optical fiber and adapted to pass the laser excitation light and to block spurious signals associated with the light; a second filter for receiving light from the first filter and adapted to direct the light toward the specimen; focusing apparatus for receiving the light from the second filter, focusing the light on a specimen so as to generate the Raman signal, and returning the Raman signal to the second filter; wherein the second filter is further configured so that when the second filter receives the Raman signal from the focusing apparatus, the second filter filters out unwanted laser excitation light before directing the Raman signal to a second optical fiber; and a second optical fiber for receiving the Raman signal from the second filter and transmitting the same to a light analyzer. In another form of the present invention, there is provided a Raman probe comprising: a light source for generating laser excitation light; focusing apparatus for receiving the laser excitation light from the light source, focusing the laser excitation light on a specimen so as to generate the Raman signal, and returning the Raman signal to a light analyzer; and a light analyzer for analyzing the Raman signature of the specimen, whereby to identify the specimen; wherein the focusing apparatus is configured to permit the specimen to reside in a vial receptacle or at a target location remote from the vial receptacle. In another form of the present invention, there is provided a method for conducting Raman spectroscopy of a specimen, comprising: generating laser excitation light using a light source; passing the laser excitation light through a first filter so as to block spurious signals associated with the light; passing the laser excitation light through a second filter so as to direct the light toward the specimen; receiving the light from the second filter, focusing the light on a specimen so as to generate the Raman signal, and returning the Raman signal to the second filter; wherein the second filter is further configured so that when the second filter receives the Raman signal from the specimen, the second filter filters out unwanted laser excitation light; passing the filtered light received from the second filter to a light analyzer; and analyzing the Raman signature of the specimen so as to identify the specimen. In another form of the present invention, there is provided a Raman probe comprising: a housing; a light source disposed within the housing for generating laser excitation light; focusing apparatus disposed within the housing for receiving the laser excitation light from the light source, focusing the laser excitation light on a specimen so as to generate the Raman signal, and returning the Raman signal to a light analyzer; and a light analyzer disposed within the housing for analyzing the Raman signature of the specimen, whereby to identify the specimen; wherein the focusing apparatus is configured to permit the specimen to reside at a target location remote from the housing; and further comprising an optical shield mounted to the housing so as to be disposed between the specimen and the user, whereby to optically shield the user from the light source. In another form of the present invention, there is provided a Raman probe comprising: a housing; a light source disposed within the housing for generating laser excitation light; focusing apparatus disposed within the housing for receiving the laser excitation light from the light source, focusing the laser excitation light on a specimen so as to generate the Raman signal, and returning the Raman signal to a light analyzer; and a light analyzer disposed within the housing for analyzing the Raman signature of the specimen, whereby to identify the specimen; wherein the focusing apparatus is configured to permit the specimen to reside at a target location remote from the housing; and further comprising a camera mounted to the housing so that its field of view encompasses the target location, and a display mounted to the housing for displaying the image captured by the camera, whereby to permit the user to position the probe relative to the specimen while watching the display.

    Handheld infrared and raman measurement devices and methods
    10.
    发明授权
    Handheld infrared and raman measurement devices and methods 有权
    手持红外和拉曼测量装置及方法

    公开(公告)号：US07928391B2

    公开(公告)日：2011-04-19

    申请号：US12691047

    申请日：2010-01-21

    申请人： Masud Azimi ,  Arran Bibby ,  Christopher D. Brown ,  Peili Chen ,  Kevin J. Knopp ,  Daryoosh Vakhshoori ,  Peidong Wang

    发明人： Masud Azimi ,  Arran Bibby ,  Christopher D. Brown ,  Peili Chen ,  Kevin J. Knopp ,  Daryoosh Vakhshoori ,  Peidong Wang

    IPC分类号： G01N21/35 ,  G01N21/65

    CPC分类号： G01N21/552 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/4535 ,  G01N2021/3595

    摘要： We disclose apparatus that includes: (a) an enclosure including an aperture; (b) a prism mounted in the enclosure so that a surface of the prism is exposed through the aperture; (c) an optical assembly contained within the enclosure, the optical assembly including a radiation source and a radiation detector, the source being configured to direct radiation towards the prism and the detector being configured to detect radiation from the source reflected from the exposed surface of the prism; and (d) an electronic processor contained within the enclosure, the electronic processor being in communication with the detector. The apparatus can be configured so that, during operation, the electronic processor determines information about a sample placed in contact with the exposed surface of the prism based on radiation reflected from the exposed prism surface while it is in contact with the sample.

    摘要翻译： 我们公开了包括以下设备：（a）包括孔的外壳; （b）安装在外壳中的棱镜，使得棱镜的表面通过该孔露出; （c）包含在所述外壳内的光学组件，所述光学组件包括辐射源和辐射探测器，所述源被配置成将辐射引向所述棱镜，并且所述检测器被配置为检测来自所述源的反射的来自所述源的辐射， 棱镜; 以及（d）包含在所述外壳内的电子处理器，所述电子处理器与所述检测器通信。 该装置可以被配置为使得在操作期间，电子处理器在与样品接触的同时基于从暴露的棱镜表面反射的辐射来确定关于与棱镜的暴露表面接触的样品的信息。