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公开(公告)号：US20120300215A1
公开(公告)日：2012-11-29
申请号：US13568507
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：US08259303B2
公开(公告)日：2012-09-04
申请号：US12466993
申请日：2009-05-15
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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73.发明申请Swept Frequency Laser for FD OCT with Intracavity Element and Method of Operation 有权扫描频率激光器用于具有腔内元件的FD OCT和操作方法公开(公告)号：US20120026505A1
公开(公告)日：2012-02-02
申请号：US13271388
申请日：2011-10-12
IPC分类号： G01B9/02
CPC分类号： H01S5/141 , G01N21/4795 , H01S5/02284 , H01S5/0683 , H01S5/0687
摘要： A frequency swept laser source that generates an optical signal that is tuned over a spectral scan band at single discrete wavelengths associated with longitudinal modes of the swept laser source. Laser hopping over discrete single cavity modes allows long laser coherence length even under dynamic very high speed tuning conditions. A ramp drive to the laser is used to linearize laser frequency tuning. A beam splitter is used to divide the optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample. A detector system detects the optical signal from the reference arm and the sample arm for generating depth profiles and images of the sample.
摘要翻译： 频率扫描激光源，其产生在与扫描的激光源的纵向模式相关联的单独离散波长下在光谱扫描带上调谐的光信号。 在离散单腔模式下的激光跳跃即使在动态非常高速的调谐条件下也能实现长激光相干长度。 激光器的斜坡驱动用于线性化激光频率调谐。 分束器用于将通向参考反射器的参考臂和通向样品的样品臂之间的光信号分开。 检测器系统检测来自参考臂和样品臂的光信号，用于产生样品的深度分布和图像。
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74.发明授权公开(公告)号：US08059277B2
公开(公告)日：2011-11-15
申请号：US12027709
申请日：2008-02-07
CPC分类号： H01S5/141 , G01N21/4795 , H01S5/02284 , H01S5/0683 , H01S5/0687
摘要： A frequency swept laser source that generates an optical signal that is tuned over a spectral scan band at single discrete wavelengths associated with longitudinal modes of the swept laser source. Laser hopping over discrete single cavity modes allows long laser coherence length even under dynamic very high speed tuning conditions. A ramp drive to the laser is used to linearize laser frequency tuning. A beam splitter is used to divide the optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample. A detector system detects the optical signal from the reference arm and the sample arm for generating depth profiles and images of the sample.
摘要翻译： 频率扫描激光源，其产生在与扫描的激光源的纵向模式相关联的单独离散波长下在光谱扫描带上调谐的光信号。 在离散单腔模式下的激光跳跃即使在动态非常高速的调谐条件下也能实现长激光相干长度。 激光器的斜坡驱动用于线性化激光频率调谐。 分束器用于将通向参考反射器的参考臂和通向样品的样品臂之间的光信号分开。 检测器系统检测来自参考臂和样品臂的光信号，用于产生样品的深度分布和图像。
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75.发明申请公开(公告)号：US20110051143A1
公开(公告)日：2011-03-03
申请号：US12776373
申请日：2010-05-08
CPC分类号： F21V9/00 , G01B9/02004 , G01B9/02091 , H01S5/005 , H01S5/0064 , H01S5/0078 , H01S5/02216 , H01S5/02248 , H01S5/02284 , H01S5/5018 , H01S5/5036 , H01S5/5063 , H01S2301/02
摘要： An integrated swept wavelength tunable optical source uses a narrowband filtered broadband signal with an optical amplifier and self-tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal. The self-tracking arrangement is used where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.
摘要翻译： 集成扫描波长可调光源使用窄带滤波宽带信号与光放大器和自跟踪滤波器。 该源包括安装在工作台上的用于产生宽带光源的微型光学平台，可调谐法布里珀罗滤波器，用于对来自宽带源的宽带光进行频谱滤波以产生窄带可调信号，安装在台架上的放大器 ，用于放大可调信号。 自我跟踪装置用于单个可调谐滤波器都产生窄带信号并对放大的信号进行频谱滤波。 在一些实例中，提供了两级放大。 使用单台实现产生低成本的高性能系统。 例如，不再需要组件之间的极化控制。
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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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77.发明申请公开(公告)号：US20090059970A1
公开(公告)日：2009-03-05
申请号：US12027709
申请日：2008-02-07
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , G01N21/4795 , H01S5/02284 , H01S5/0683 , H01S5/0687
摘要： A frequency swept laser source that generates an optical signal that is tuned over a spectral scan band at single discrete wavelengths associated with longitudinal modes of the swept laser source. Laser hopping over discrete single cavity modes allows long laser coherence length even under dynamic very high speed tuning conditions. A ramp drive to the laser is used to linearize laser frequency tuning. A beam splitter is used to divide the optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample. A detector system detects the optical signal from the reference arm and the sample arm for generating depth profiles and images of the sample.
摘要翻译： 频率扫描激光源，其产生在与扫描的激光源的纵向模式相关联的单个离散波长下在光谱扫描带上调谐的光信号。 在离散单腔模式下的激光跳跃即使在动态非常高速的调谐条件下也能实现长激光相干长度。 激光器的斜坡驱动用于线性化激光频率调谐。 分束器用于将通向参考反射器的参考臂和通向样品的样品臂之间的光信号分开。 检测器系统检测来自参考臂和样品臂的光信号，用于产生样品的深度分布和图像。
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公开(公告)号：US07406107B2
公开(公告)日：2008-07-29
申请号：US10953048
申请日：2004-09-29
申请人： Dale C. Flanders , Xinfa Ma , Walid A. Atia
发明人： Dale C. Flanders , Xinfa Ma , Walid A. Atia
IPC分类号： H01S3/10
CPC分类号： G01N21/39 , G01J1/4257 , G01J3/02 , G01J3/0213 , G01J3/0256 , G01J3/10 , G01J3/26 , G01J3/433 , G01J2003/2866 , G01N2021/391 , G01N2021/399 , G01N2201/08 , H01S3/08013 , H01S3/083 , H01S5/005 , H01S5/0064 , H01S5/02252 , H01S5/141
摘要： An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.
摘要翻译： 用于半导体源光谱系统的光功率控制系统控制来自光谱系统的可调谐信号中的功率波动，从而改善系统的噪声性能。 该通用解决方案相对于在扫描期间简单地检测参考功率电平然后在与样品相互作用之后校正检测到的信号的其它系统具有优点，通过减少协调样品检测器和功率或参考检测器的操作的要求。 光谱系统包括半导体源和可调谐滤波器。 半导体源和可调信号的组合用可调信号照射样品，可在扫描带上调谐。 功率控制系统包括用于检测可调谐光信号的功率的振幅检测器系统和用于响应于其检测到的功率来调节可调谐光信号的幅度的功率控制系统。
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79.发明授权公开(公告)号：US07027472B2
公开(公告)日：2006-04-11
申请号：US09909330
申请日：2001-07-19
申请人： Dale C. Flanders
发明人： Dale C. Flanders
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , H01S3/105 , H01S3/1062 , H01S5/02248 , H01S5/02284 , H01S5/0687
摘要： A fixed wavelength, external cavity semiconductor laser comprises a semiconductor laser gain medium and an intra-cavity filter having a filter function specifying a frequency of operation of the laser. This distinguishes it from distributed feedback Bragg reflector systems in which the wavelength of operation is dictated by the semiconductor Bragg grating, drive current, and temperature. A cavity length modulation system is further provided that modulates an optical length of the cavity to change the spectral locations of longitudinal modes of the cavity relative to the filter function. One important advantage of the present invention is that it can be deployed without a thermoelectric (TE) cooler. Specifically, the intra-cavity filter material in combination with the cavity length controller, allow a mode of cavity to be located at the filter function. Thus, the temperature of the module can fluctuate with ambient temperature or other operating parameters, but the wavelength is held stable with single longitudinal mode operation of the module being guaranteed.
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公开(公告)号：US06671078B2
公开(公告)日：2003-12-30
申请号：US09863654
申请日：2001-05-23
IPC分类号： G02B2600
CPC分类号： B81B3/0021 , B81B2201/045 , G02B6/353 , G02B6/3552 , G02B6/3566 , G02B6/357 , G02B6/358 , G02B26/02
摘要： A zipper actuator for optical beam control has an optical port formed through the substrate. The cantilevered beam of the actuator preferably includes a paddle for switching the optical signal. Mirror structures can be provided on the paddle for beam switching. In some embodiments, MEMS or electrode latches are further provided.
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