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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：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：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：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：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：US20120300216A1
公开(公告)日：2012-11-29
申请号：US13568717
申请日：2012-08-07
IPC分类号： G01B9/02
CPC分类号： G01B9/02057 , A61B5/0066 , A61B5/0073 , G01B9/02004 , G01B9/0205 , G01B9/02091 , G01B2290/70 , G01N21/4795
摘要： Optical coherence tomography (OCT) probe and system designs are disclosed that minimize the effects of mechanical movement and strain to the probe to the OCT analysis. It also concerns optical designs that are robust against noise from the OCT laser source. Also integrated OCT system-probes are included that yield compact and robust electro-opto-mechanical systems along with polarization sensitive OCT systems.
摘要翻译： 公开了光学相干断层扫描（OCT）探针和系统设计，其最小化机械移动和应变对OCT分析的探针的影响。 它还涉及对来自OCT激光源的噪声强大的光学设计。 还包括集成的OCT系统探针，可产生紧凑且坚固的电光机械系统以及偏振敏感OCT系统。
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公开(公告)号：US20090284749A1
公开(公告)日：2009-11-19
申请号：US12466993
申请日：2009-05-15
IPC分类号： G01B11/02
CPC分类号： G01B9/02057 , A61B5/0066 , A61B5/0073 , G01B9/02004 , G01B9/0205 , G01B9/02091 , G01B2290/70 , G01N21/4795
摘要： Optical coherence tomography (OCT) probe and system designs are disclosed that minimize the effects of mechanical movement and strain to the probe to the OCT analysis. It also concerns optical designs that are robust against noise from the OCT laser source. Also integrated OCT system-probes are included that yield compact and robust electro-opto-mechanical systems along with polarization sensitive OCT systems.
摘要翻译： 公开了光学相干断层扫描（OCT）探针和系统设计，其最小化机械移动和应变对OCT分析的探针的影响。 它还涉及对来自OCT激光源的噪声强大的光学设计。 还包括集成的OCT系统探针，可产生紧凑且坚固的电光机械系统以及偏振敏感OCT系统。
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公开(公告)号：US10371499B2
公开(公告)日：2019-08-06
申请号：US13976229
申请日：2011-12-27
IPC分类号： A61B5/00 , G01B9/02 , H01S3/11 , H01S5/04 , H01S5/14 , G01N21/47 , H01S3/067 , H01S3/083 , H01S3/094 , H01S3/106 , H01S5/022 , H01S5/026 , H01S5/062 , H01S5/065
摘要： An optical coherence analysis system uses a laser swept source that is constrained to operate in a mode locked condition. This is accomplished by synchronously changing the laser cavity's gain and/or phase based on the round trip travel time of light in the cavity. Many high-speed wavelength swept laser sources emit pulses synchronized with the round trip time of the cavity as part of a nonlinear optical frequency red shifting process. Stable pulsation is associated with smooth tuning and low relative intensity noise. Addition of mode-locking methods to this class of lasers can control and stabilize these lasers to a low clock jitter and RIN state, and in specific cases allow long-to-short wavelength tuning in addition to the usual short-to-long (red shifting). The laser may comprise a SOA (410), a tunable Fabry-Perot-Filter (412) as one reflector and an Output coupler (405) in an optical fiber (406) to adjust the cavity length.
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