公开(公告)号：US5301201A

公开(公告)日：1994-04-05

申请号：US26364

申请日：1993-03-01

申请人： Niloy K. Dutta ,  Daryoosh Vakhshoori

发明人： Niloy K. Dutta ,  Daryoosh Vakhshoori

IPC分类号： H01S3/10 ,  G02F1/29 ,  H01S3/00 ,  H01S3/106 ,  H01S5/00 ,  H01S5/026 ,  H01S5/062 ,  H01S5/183 ,  H01S3/107 ,  H01S3/101 ,  H01S3/19

CPC分类号： H01S5/18302 ,  G02F1/29 ,  G02F2203/28 ,  H01S5/0614 ,  H01S5/0622 ,  H01S5/18308 ,  H01S5/18358 ,  H01S5/1838 ,  H01S5/18388 ,  H01S5/2063

摘要： The disclosed tunable (wavelength and/or focal length) laser typically is a surface emitting laser that comprises a multilayer structure that comprises the lower Bragg reflector and the active region. A layer of electro-optic material (typically liquid crystal material) is in contact with the top surface of the multilayer structure, and means are provided for applying a voltage across the layer of electro-optic material. In one exemplary embodiment, the layer is inside the laser cavity, making the laser wavelength tunable. In another exemplary embodiment the laser is a Z-laser that focuses the output radiation, with the multilayer structure comprising also the upper Bragg reflector. In this embodiment the layer of electro-optic material is outside the laser cavity, and the laser has tunable focal length. A still further embodiment is both wavelength- and focal length-tunable. Lasers according to the invention can be advantageously used in a variety of applications, e.g., in a wavelength division multiplexed and/or optically amplified optical fiber communication system.

摘要翻译： 公开的可调谐（波长和/或焦距）激光器通常是表面发射激光器，其包括包括下布拉格反射器和有源区域的多层结构。 一层电光材料（通常为液晶材料）与多层结构的顶表面接触，并提供用于在电光材料层上施加电压的装置。 在一个示例性实施例中，该层位于激光腔内，使激光波长可调。 在另一示例性实施例中，激光是聚焦输出辐射的Z激光，多层结构还包括上布拉格反射器。 在该实施例中，电光材料层在激光腔外，并且激光器具有可调谐的焦距。 另一个实施例是波长和焦距可调谐的。 根据本发明的激光器可以有利地用于各种应用中，例如在波分复用和/或光放大光纤通信系统中。

公开(公告)号：US10527495B2

公开(公告)日：2020-01-07

申请号：US16351129

申请日：2019-03-12

申请人： Daryoosh Vakhshoori ,  Romain Blanchard ,  Peili Chen ,  Masud Azimi ,  Tobias Mansuripur ,  Kalyani Krishnamurthy ,  Arran M. Bibby ,  Fred R. Huettig, III ,  Gokhan Ulu ,  Greg Vander Rhodes

发明人： Daryoosh Vakhshoori ,  Romain Blanchard ,  Peili Chen ,  Masud Azimi ,  Tobias Mansuripur ,  Kalyani Krishnamurthy ,  Arran M. Bibby ,  Fred R. Huettig, III ,  Gokhan Ulu ,  Greg Vander Rhodes

IPC分类号： G01J3/44 ,  G01K11/32 ,  G01J3/02 ,  G01J3/06

摘要： A compact, portable Raman spectrometer makes fast, sensitive standoff measurements at little to no risk of eye injury or igniting the materials being probed. This spectrometer uses differential Raman spectroscopy and ambient light measurements to measure point-and-shoot Raman signatures of dark or highly fluorescent materials at distances of 1 cm to 10 m or more. It scans the Raman pump beam(s) across the sample to reduce the risk of unduly heating or igniting the sample. Beam scanning also transforms the spectrometer into an instrument with a lower effective safety classification, reducing the risk of eye injury. The spectrometer's long standoff range automatic focusing make it easier to identify chemicals through clear and translucent obstacles, such as flow tubes, windows, and containers. And the spectrometer's components are light and small enough to be packaged in a handheld housing or housing suitable for a small robot to carry.

公开(公告)号：US20120223130A1

公开(公告)日：2012-09-06

申请号：US11837284

申请日：2007-08-10

申请人： Kevin J. Knopp ,  Daryoosh Vakhshoori ,  Christopher Brown ,  Gregory Vander Rhodes

发明人： Kevin J. Knopp ,  Daryoosh Vakhshoori ,  Christopher Brown ,  Gregory Vander Rhodes

IPC分类号： G06F17/30 ,  G01J3/44 ,  G01N21/64 ,  G01J1/42 ,  G01J3/42

CPC分类号： G01N21/3586 ,  G01J3/0272 ,  G01J3/42 ,  G01J3/44 ,  G01N21/3563 ,  G01N21/64 ,  G01N21/65

摘要： Disclosed herein are methods and systems for scanning objects and associated substances, where the methods include: (a) using a first electronic device to scan a feature of an object and provide reference information about the object based on the scanned feature, where the feature identifies the object or a substance associated with the object; (b) using a second electronic device to measure electromagnetic radiation emitted from the object and provide sample information about the object based on the measured electromagnetic radiation; and (c) comparing the sample information and the reference information to determine whether the object includes the substance associated with the object.

摘要翻译： 本文公开了用于扫描对象和相关物质的方法和系统，其中所述方法包括：（a）使用第一电子设备来扫描对象的特征并基于所扫描的特征提供关于对象的参考信息，其中特征识别 物体或与物体相关的物质; （b）使用第二电子设备来测量从物体发射的电磁辐射，并基于测量的电磁辐射提供关于物体的样品信息; 以及（c）比较样本信息和参考信息以确定对象是否包括与对象相关联的物质。

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。

公开(公告)号：US07595877B2

公开(公告)日：2009-09-29

申请号：US11926549

申请日：2007-10-29

申请人： Daryoosh Vakhshoori ,  Peili Chen ,  Peidong Wang ,  Masud Azimi

发明人： Daryoosh Vakhshoori ,  Peili Chen ,  Peidong Wang ,  Masud Azimi

IPC分类号： G01J3/28

CPC分类号： G01J3/44 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0286

摘要： A spectrometer comprising a collimating element for receiving input light and collimating the same, a dispersive optical element for receiving light from the collimating element and dispersing the same and a focusing element for receiving light from the dispersive optical element and focusing the same on a detector assembly wherein, where the wavelength dispersion of the dispersed light extends in the x-y direction, the collimating element and the focusing element are formed so as to maintain the desired optical parameters in the x-y plane while having a reduced size in the z direction.

摘要翻译： 一种光谱仪，包括用于接收输入光并准直其的准直元件，用于接收来自准直元件的光并将其分散的分散光学元件和用于从分散光学元件接收光并将其聚焦在检测器组件上的聚焦元件 其中，当分散光的波长色散沿xy方向延伸时，形成准直元件和聚焦元件，以便在xy平面上保持期望的光学参数，同时在z方向具有减小的尺寸。

公开(公告)号：US07180653B2

公开(公告)日：2007-02-20

申请号：US10799304

申请日：2004-03-12

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

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

IPC分类号： H01S3/00

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。

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.

公开(公告)号：US07110109B2

公开(公告)日：2006-09-19

申请号：US10826706

申请日：2004-04-16

申请人： Kevin J. Knopp ,  Daryoosh Vakhshoori

发明人： Kevin J. Knopp ,  Daryoosh Vakhshoori

IPC分类号： G01J3/44 ,  G01N21/03 ,  G01N21/65

CPC分类号： G01J3/44 ,  G01N21/65

摘要： A Raman spectroscopy system includes a laser source for providing a laser beam, and an optical probe assembly including a photonic crystal fiber light guide for receiving the laser beam from the laser source and for directing the laser beam toward a specimen of selected material, a lens for receiving the laser beam in the light guide and directing the beam onto the specimen and for receiving reflected light from the specimen and directing the reflected light back through the fiber light guide, and a dichroic beam splitter for directing a portion of the reflected beam out of the optical probe assembly. The system further includes an optical spectrum analyzer for receiving the portion of the reflected beam and for exhibiting a Raman signature of the specimen.

摘要翻译： 拉曼光谱系统包括用于提供激光束的激光源，以及光探头组件，其包括光子晶体光纤导向器，用于接收来自激光源的激光束并将激光束引向所选材料的样本，透镜 用于在光导中接收激光束并将光束引导到样本上并且用于接收来自样本的反射光并将反射光引导回穿过光纤导光体，以及二向色分束器，用于将一部分反射光束引出 的光学探头组件。 该系统还包括光谱分析仪，用于接收反射光束的一部分并且用于展示样品的拉曼特征。

公开(公告)号：US07047810B2

公开(公告)日：2006-05-23

申请号：US10758354

申请日：2004-01-15

申请人： Yakov Kogan ,  Daryoosh Vakhshoori ,  Peidong Wang

发明人： Yakov Kogan ,  Daryoosh Vakhshoori ,  Peidong Wang

IPC分类号： G01L11/00

CPC分类号： G01L21/22

摘要： A pressure sensor is disclosed for measuring fluid pressure comprising a pressure sensing structure comprising a mass target suspended on a spring mechanism, wherein the mass target and the spring mechanism together exhibit high Q mechanical resonance, wherein the mass target has an area which is presented in a plane perpendicular to the direction of the mechanical oscillation of the structure, and further wherein the mass target and the spring mechanism are in the form of a membrane, and transducer means for measuring the fluid pressure by characterizing the effects that the fluid molecules produce on the motion of the structure.

摘要翻译： 公开了一种用于测量流体压力的压力传感器，包括包括悬挂在弹簧机构上的质量目标的压力感测结构，其中质量目标和弹簧机构一起显示高Q机械共振，其中质量目标具有呈现在 垂直于结构的机械振荡方向的平面，其中质量目标和弹簧机构为膜的形式，以及用于通过表征流体分子产生的影响来测量流体压力的换能器装置 结构的运动。

公开(公告)号：US06804270B1

公开(公告)日：2004-10-12

申请号：US09910402

申请日：2001-07-20

申请人： Daryoosh Vakhshoori ,  Min Jiang

发明人： Daryoosh Vakhshoori ,  Min Jiang

IPC分类号： H01S310

CPC分类号： H01S5/18366 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094061 ,  H01S5/02284 ,  H01S5/041 ,  H01S5/18388

摘要： An efficient high power tunable laser source suitable for use in optical communications equipment and networks comprises an optically pumped VCSEL and a fiber amplifier for the laser output of said VCSEL, with VCSEL and the fiber amplifier being optically pumped by a common optical pump source.

摘要翻译： 适用于光通信设备和网络的有效的大功率可调谐激光源包括光泵浦VCSEL和用于所述VCSEL的激光输出的光纤放大器，其中VCSEL和光纤放大器被公共光泵源光学泵浦。