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21.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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22.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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23.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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24.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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公开(公告)号：US08526472B2
公开(公告)日：2013-09-03
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.
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公开(公告)号：US20110182550A1
公开(公告)日：2011-07-28
申请号：US12693181
申请日：2010-01-25
CPC分类号： G01Q60/22 , A61B5/0066 , A61B5/0084 , A61B5/02007 , A61B2562/12 , G02B23/2469
摘要： An optical probe for emitting and/or receiving light within a body comprises an optical fiber that transmits and/or receives an optical signal, a silicon optical bench including a fiber groove running longitudinally that holds an optical fiber termination of the optical fiber and a reflecting surface that optically couples an endface of the optical fiber termination to a lateral side of the optical bench. The fiber groove is fabricated using silicon anisotropic etching techniques. Some examples use a housing around the optical bench that is fabricated using LIGA or other electroforming technology. A method for forming lens structure is also described that comprises forming a refractive lens in a first layer of a composite wafer material, such as SOI (silicon on insulator) wafers and forming an optical port through a backside of the composite wafer material along an optical axis of the refractive lens. the refractive lens is preferably formed using grey-scale lithography and dry etching the first layer.
摘要翻译： 用于在体内发射和/或接收光的光学探针包括透射和/或接收光信号的光纤，包括纵向延伸的光纤槽的硅光学台，其保持光纤的光纤终端和反射 表面，其将光纤端接件的端面光学耦合到光学平台的侧面。 使用硅各向异性蚀刻技术制造纤维槽。 一些例子使用使用LIGA或其他电铸技术制造的光学平台周围的外壳。 还描述了一种用于形成透镜结构的方法，其包括在诸如SOI（绝缘体上硅）晶片的复合晶片材料的第一层中形成折射透镜，并沿着光学器件通过复合晶片材料的背面形成光学端口 折射透镜的轴线。 折射透镜优选使用灰度光刻形成并且对第一层进行干蚀刻。
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公开(公告)号：US20110051148A1
公开(公告)日：2011-03-03
申请号：US12553295
申请日：2009-09-03
CPC分类号： G02B5/22 , G01B9/02004 , G01B9/02091 , G01J3/10 , G01J3/26 , G01J3/4338 , G01N21/4795
摘要： An integrated swept wavelength optical source uses a filtered ASE signal with an optical amplifier and tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a first 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, and a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. A self-tracking arrangement is also possible 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： 集成扫描波长光源使用经滤波的ASE信号与光放大器和跟踪滤波器。 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，用于产生宽带光源的第一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谐信号，放大器，安装在 用于放大可调信号的工作台，以及安装在工作台上的第二个可调谐法布里珀罗滤波器，用于对来自放大器的放大的可调谐信号进行频谱滤波。 单个可调谐滤波器既可以生成窄带信号又对放大的信号进行频谱滤波，则自我跟踪装置也是可能的。 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：US07242509B2
公开(公告)日：2007-07-10
申请号：US11380686
申请日：2006-04-28
IPC分类号： G02F1/03
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：US08958666B2
公开(公告)日：2015-02-17
申请号：US11649337
申请日：2007-01-03
申请人： David O. Caplan , Walid A. Atia
发明人： David O. Caplan , Walid A. Atia
IPC分类号： G02B6/12 , H04B10/2513 , H04B10/50 , H04B10/508 , G02B6/36
CPC分类号： H04B10/25137 , H04B10/505 , H04B10/5051 , H04B10/508
摘要： A system includes an optical transmitter that outputs an optical signal having a substantially Gaussian waveform and an optical receiver that is optically coupled to the optical transmitter and has an impulse response essentially matching the waveform. The impulse response and waveform preferably match in the time domain. The transmitter and receiver may be average-power-limited, using, for example, an erbium-doped fiber amplifier. To achieve a high signal-to-noise ratio, the waveform may be designed to minimize jitter, sample duration, matching parasitics, and inter-symbol interference (ISI). Such a waveform may be a return-to-zero (RZ) Gaussian or Gaussian-like waveform and may be transmitted in a variety of modulation formats. Further, the system may be used in WDM or TDM systems. A method for characterizing the time domain impulse response of an optical element used in the optical receiver is provided, where the method is optionally optimized using deconvolution and/or cross-correlation techniques.
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