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公开(公告)号：US07671981B1
公开(公告)日：2010-03-02
申请号：US11769488
申请日：2007-06-27
申请人： Walid A. Atia , Dale C. Flanders , Robert K. Jenner , Lawrence P. McDermott , Bartley C. Johnson
发明人： Walid A. Atia , Dale C. Flanders , Robert K. Jenner , Lawrence P. McDermott , Bartley C. Johnson
IPC分类号： G01N21/00
CPC分类号： G01N21/39 , G01J3/10 , G01J3/26 , G01J3/4338 , G01J9/00 , G01N21/3554 , G01N21/3559
摘要： A tunable laser spectroscopic carpet identification system comprises a tunable laser spectroscopy system for generating a tunable signal that is transmitted to a carpet sample. The system detects the tunable signal after interaction with the carpet sample so that an analyzer is able to relate a spectral response of the carpet sample to a chemical composition of the carpet sample. In one example, the spectroscopy system comprises a laser cavity in which the tunable signal is generated, a semiconductor gain medium in the laser cavity, and a tunable element for controlling a wavelength of tunable signal generated in the laser cavity. To deal with variations in water content, the analyzer estimates a water content of the carpet sample using the spectral response of the carpet sample and then determines the chemical composition of the carpet sample in part based on the estimate of the water content.
摘要翻译： 可调激光光谱地毯识别系统包括可调谐激光光谱系统，用于产生传输到地毯样品的可调信号。 该系统在与地毯样品相互作用后检测可调信号，使得分析仪能够将地毯样品的光谱响应与地毯样品的化学成分相关联。 在一个示例中，光谱系统包括其中产生可调信号的激光腔，激光腔中的半导体增益介质和用于控制在激光腔中产生的可调信号的波长的可调元件。 为了处理含水量的变化，分析器使用地毯样品的光谱响应估计地毯样品的含水量，然后基于含水量的估计部分地确定地毯样品的化学成分。
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公开(公告)号：US08564783B2
公开(公告)日：2013-10-22
申请号：US12396099
申请日：2009-03-02
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , G01B9/02004 , G01B9/02044 , G01B9/02059 , G01B9/02069 , G01B2290/25 , H01S3/08013 , H01S3/08054 , H01S3/1067 , H01S5/02248 , H01S5/02415 , H01S5/068 , H01S5/141 , H01S5/146
摘要： A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also includes a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
摘要翻译： 用于TEFD-OCT成像的频率扫描激光源包括具有激光源的光学台上的集成时钟子系统。 当光信号在扫描带上调谐时，时钟子系统产生频率时钟信号。 优选地，激光源还包括在可调谐滤波器和增益介质之间的光腔中的腔体延长器，以增加可调谐滤波器和增益介质之间的光学距离，以便控制激光强度图案噪声的位置。 该激光器还包括一个纤维短截线，其允许控制腔体长度，同时还控制空腔中的双折射。
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公开(公告)号：US20120162659A1
公开(公告)日：2012-06-28
申请号：US12980144
申请日：2010-12-28
CPC分类号： G01B9/02091 , A61B5/0066 , A61B5/0075 , G01N21/4795 , H01S5/02216 , H01S5/02248 , H01S5/02284 , H01S5/141 , H01S5/4012 , H01S5/4062 , H01S5/4068
摘要： An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal for form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm. In embodiments, the swept sources are tunable lasers that have shared laser cavities.
摘要翻译： 一种光学相干分析系统，包括：第一扫描光源，其产生在第一光谱扫描带上调谐的第一光信号，产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源， 组合第一光信号和第二光信号以形成组合的光信号，用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开的干涉仪，以及用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。 在实施例中，扫描光源是具有共享激光腔的可调激光器。
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公开(公告)号：US08687666B2
公开(公告)日：2014-04-01
申请号：US12980144
申请日：2010-12-28
IPC分类号： H01S3/08
CPC分类号： G01B9/02091 , A61B5/0066 , A61B5/0075 , G01N21/4795 , H01S5/02216 , H01S5/02248 , H01S5/02284 , H01S5/141 , H01S5/4012 , H01S5/4062 , H01S5/4068
摘要： An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal for form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm. In embodiments, the swept sources are tunable lasers that have shared laser cavities.
摘要翻译： 一种光学相干分析系统，包括：第一扫描光源，其产生在第一光谱扫描带上调谐的第一光信号，产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源， 组合第一光信号和第二光信号以形成组合的光信号，用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开的干涉仪，以及用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。 在实施例中，扫描光源是具有共享激光腔的可调激光器。
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公开(公告)号：US20110080591A1
公开(公告)日：2011-04-07
申请号：US12572925
申请日：2009-10-02
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , G01B9/02004 , G01B9/02007 , G01B9/02069 , H01S3/1062 , H01S3/2383 , H01S5/141
摘要： An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal for form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm.
摘要翻译： 一种光学相干分析系统，包括：第一扫描光源，其产生在第一光谱扫描带上调谐的第一光信号，产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源， 组合第一光信号和第二光信号以形成组合的光信号，用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开的干涉仪，以及用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。
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公开(公告)号：US08665450B2
公开(公告)日：2014-03-04
申请号：US12572925
申请日：2009-10-02
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , G01B9/02004 , G01B9/02007 , G01B9/02069 , H01S3/1062 , H01S3/2383 , H01S5/141
摘要： An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal to form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm.
摘要翻译： 一种光学相干分析系统，包括：第一扫描光源，其产生在第一光谱扫描带上调谐的第一光信号，产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源， 组合第一光信号和第二光信号以形成组合的光信号;干涉仪，用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开;以及检测器系统，用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。
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公开(公告)号：US20090290167A1
公开(公告)日：2009-11-26
申请号：US12396099
申请日：2009-03-02
CPC分类号： G01B9/02091 , G01B9/02004 , G01B9/02044 , G01B9/02059 , G01B9/02069 , G01B2290/25 , H01S3/08013 , H01S3/08054 , H01S3/1067 , H01S5/02248 , H01S5/02415 , H01S5/068 , H01S5/141 , H01S5/146
摘要： A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also include a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
摘要翻译： 用于TEFD-OCT成像的频率扫描激光源包括具有激光源的光学台上的集成时钟子系统。 当光信号在扫描带上调谐时，时钟子系统产生频率时钟信号。 优选地，激光源还包括在可调谐滤波器和增益介质之间的光腔中的腔体延长器，以增加可调谐滤波器和增益介质之间的光学距离，以便控制激光强度图案噪声的位置。 该激光器还包括一个纤维短截线，其允许控制腔体长度，同时还控制空腔中的双折射。
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公开(公告)号：USRE44605E1
公开(公告)日：2013-11-19
申请号：US12613349
申请日：2009-11-05
CPC分类号： G01J3/36 , G01J3/0256 , G01J3/10 , G01J3/26 , G01N21/255
摘要： Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.
摘要翻译： 公开了集成光谱系统。 在一些示例中，提供使用一个或多个法布里 - 珀罗可调滤波器的集成可调谐检测器。 其他示例使用集成的可调源。 可调谐源组合了一个或多个二极管，例如超发光发光二极管（SLED）和法布里珀罗可调滤波器或标准具。 与可调谐标准具的使用相关的优点是它可以是小的，相对较低的功率消耗装置。 例如，这些器件的较新的微电机械系统（MEMS）实现使其成为芯片的尺寸。 这增加了它们的稳健性和性能。 在一些示例中，还集成了隔离器，放大器和/或参考系统。
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公开(公告)号：US08054466B1
公开(公告)日：2011-11-08
申请号：US11419993
申请日：2006-05-23
IPC分类号： G01B9/02
CPC分类号： G01J3/26 , G01J3/0218 , G01J3/0224 , G01J3/0256 , G01J3/0286 , G01J3/28 , G01J3/4338
摘要： A spectroscopy wavelength and amplitude referencing system comprises an optical bench receiving a tunable optical signal from a tunable signal source, a wavelength reference detector on the bench for determining a wavelength of the tunable optical signal, an amplitude reference detector on the bench for determining an amplitude of the tunable optical signal and an output optical signal fiber for transmitting the tunable optical signal to a sample. Also, spectroscopy system controller determines a spectral response of the sample to the tunable optical signal by determining an instantaneous wavelength of the tunable optical signal by reference to the wavelength reference detector.
摘要翻译： 光谱波长和幅度参考系统包括从可调信号源接收可调谐光信号的光学台，用于确定可调谐光信号的波长的工作台上的波长参考检测器，用于确定振幅的台上的幅度参考检测器 的可调光信号和用于将可调光信号传输到样品的输出光信号光纤。 此外，光谱系统控制器通过参考波长参考检测器确定可调谐光信号的瞬时波长来确定样品对可调光信号的光谱响应。
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公开(公告)号：US07415049B2
公开(公告)日：2008-08-19
申请号：US11158617
申请日：2005-06-22
IPC分类号： H01S3/10
CPC分类号： H01S3/08059 , H01S3/105 , H01S5/06 , H01S5/141 , H01S5/146
摘要： An external cavity laser has a mirror-based resonant tunable filter, such as a Fabry Perot tunable filter or Gires-Tournois interferometer tuning element, with the tunable filter being preferably used as a laser cavity mirror. A mirror-based resonant tunable filter is selected in which the spectral response in reflection has an angular dependence. A tilt scheme is used whereby by selecting an appropriate angle between the filter's nominal optical axis and the cavity optical axis, a narrowband peak spectral reflection is provided to the laser cavity. This tunable narrowband spectral reflection from the filter is used to lock and tune the laser output wavelength.
摘要翻译： 外腔激光器具有基于镜子的共振可调谐滤波器，例如法布里·珀罗可调谐滤波器或Gires-Tournois干涉仪调谐元件，其中可调谐滤波器优选用作激光腔镜。 选择基于镜像的谐振可调谐滤波器，其中反射中的光谱响应具有角度依赖性。 使用倾斜方案，由此通过选择滤光器的标称光轴和腔光轴之间的适当角度，向激光腔提供窄带峰值光谱反射。 来自滤波器的可调窄带光谱反射用于锁定和调谐激光输出波长。
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