Laser Swept Source with Controlled Mode Locking for OCT Medical Imaging
    2.
    发明申请
    Laser Swept Source with Controlled Mode Locking for OCT Medical Imaging 审中-公开
    激光扫描源与控制模式锁定OCT医疗成像

    公开(公告)号:US20140085639A1

    公开(公告)日:2014-03-27

    申请号:US13976229

    申请日:2011-12-27

    Abstract: 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.

    Abstract translation: 光学相干分析系统使用被限制在模式锁定状态下操作的激光扫描源。 这是通过基于腔中光的往返行进时间同步改变激光腔的增益和/或相来实现的。 许多高速波长扫描激光源发射与腔的往返时间同步的脉冲,作为非线性光频红移方法的一部分。 稳定的脉动与平滑调谐和低相对强度噪声相关。 将这种类型的激光器添加锁模方法可以将这些激光器控制并稳定在低时钟抖动和RIN状态,并且在特定的情况下,除了通常的短到长(红色)之外还允许长时间到短波长的调谐 转移)。 激光器可以包括SOA(410),作为一个反射器的可调谐法布里 - 珀罗过滤器(412)和在光纤(406)中的输出耦合器(405),以调节腔体长度。

    Silicon optical bench OCT probe for medical imaging
    3.
    发明授权
    Silicon optical bench OCT probe for medical imaging 有权
    硅光学台用于医学成像的OCT探针

    公开(公告)号:US08515221B2

    公开(公告)日:2013-08-20

    申请号:US12693181

    申请日:2010-01-25

    Abstract: 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.

    Abstract translation: 用于在体内发射和/或接收光的光学探针包括传输和/或接收光信号的光纤,包括纵向延伸的光纤槽的硅光学台,其保持光纤的光纤端接和反射 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,并且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。

    Integrated optical coherence tomography system
    4.
    发明授权
    Integrated optical coherence tomography system 有权
    综合光学相干断层扫描系统

    公开(公告)号:US08437007B2

    公开(公告)日:2013-05-07

    申请号:US12981783

    申请日:2010-12-30

    Inventor: Dale C. Flanders

    Abstract: An optical detector system comprises a hermetic optoelectronic package, an optical bench installed within the optoelectronic package, a balanced detector system installed on the optical bench. The balanced detector system includes at least two optical detectors that receive interference signals. An electronic amplifier system installed within the optoelectronic package amplifies an output of at least two optical detectors. Also disclosed is an integrated optical coherence tomography system. Embodiments are provided in which the amplifiers, typically transimpedance amplifiers, are closely integrated with the optical detectors that detect the interference signals from the interferometer. Further embodiments are provided in which the interferometer but also preferably its detectors are integrated together on a common optical bench. Systems that have little or no optical fiber can thus be implemented.

    Abstract translation: 光学检测器系统包括密封光电子封装,安装在光电封装内的光学平台,安装在光学平台上的平衡检测器系统。 平衡检测器系统包括至少两个接收干扰信号的光学检测器。 安装在光电封装内的电子放大器系统放大至少两个光学检测器的输出。 还公开了一种集成的光学相干断层摄影系统。 提供了实施例,其中放大器,通常是跨阻放大器,与检测来自干涉仪的干扰信号的光学检测器紧密集成。 提供了其它实施例,其中干涉仪还优选地其检测器在公共光学台上集成在一起。 因此可以实现具有很少或不具有光纤的系统。

    Integrated OCT Detector System with Transimpedance Amplifier
    5.
    发明申请
    Integrated OCT Detector System with Transimpedance Amplifier 有权
    具有跨阻放大器的集成OCT检测器系统

    公开(公告)号:US20120168650A1

    公开(公告)日:2012-07-05

    申请号:US12981770

    申请日:2010-12-30

    Abstract: An optical detector system comprises a hermetic optoelectronic package, an optical bench installed within the optoelectronic package, a balanced detector system installed on the optical bench. The balanced detector system includes at least two optical detectors that receive interference signals. An electronic amplifier system installed within the optoelectronic package amplifies an output of at least two optical detectors. Also disclosed is an integrated optical coherence tomography system. Embodiments are provided in which the amplifiers, typically transimpedance amplifiers, are closely integrated with the optical detectors that detect the interference signals from the interferometer. Further embodiments are provided in which the interferometer but also preferably its detectors are integrated together on a common optical bench. Systems that have little or no optical fiber can thus be implemented.

    Abstract translation: 光学检测器系统包括密封光电子封装,安装在光电封装内的光学平台,安装在光学平台上的平衡检测器系统。 平衡检测器系统包括至少两个接收干扰信号的光学检测器。 安装在光电封装内的电子放大器系统放大至少两个光学检测器的输出。 还公开了一种集成的光学相干断层摄影系统。 提供了实施例,其中放大器,通常是跨阻放大器,与检测来自干涉仪的干扰信号的光学检测器紧密集成。 提供了其它实施例,其中干涉仪还优选地其检测器在公共光学台上集成在一起。 因此可以实现具有很少或不具有光纤的系统。

    Low pixel count tunable laser raman spectroscopy system and method
    7.
    发明授权
    Low pixel count tunable laser raman spectroscopy system and method 有权
    低像素数可调激光拉曼光谱系统和方法

    公开(公告)号:US07564548B2

    公开(公告)日:2009-07-21

    申请号:US11692625

    申请日:2007-03-28

    CPC classification number: G01N21/65 G01N21/658

    Abstract: A Raman system uses a semiconductor tunable laser subsystem to generate a tunable signal that is tuned over a scan band of greater than 50 nanometers. A probe system transmits the tunable signal to a sample. Finally a detector system comprises a bandpass filter for filtering a Raman signal from the sample generated by the tunable signal, and a detector for detecting the filtered Raman signal.

    Abstract translation: 拉曼系统使用半导体可调谐激光子系统来产生在超过50纳米的扫描带上调谐的可调谐信号。 探头系统将可调信号发送到样品。 最后,检测器系统包括用于从由可调信号产生的样本中滤波拉曼信号的带通滤波器和用于检测滤波的拉曼信号的检测器。

    Linearized Swept Laser Source for Optical Coherence Analysis System
    8.
    发明申请
    Linearized Swept Laser Source for Optical Coherence Analysis System 审中-公开
    用于光学相干分析系统的线性扫描激光源

    公开(公告)号:US20090059971A1

    公开(公告)日:2009-03-05

    申请号:US12027710

    申请日:2008-02-07

    Abstract: 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.

    Abstract translation: 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。

    Method and system for noise control in semiconductor spectroscopy system
    9.
    发明授权
    Method and system for noise control in semiconductor spectroscopy system 有权
    半导体光谱系统噪声控制方法与系统

    公开(公告)号:US07482589B2

    公开(公告)日:2009-01-27

    申请号:US11550503

    申请日:2006-10-18

    Abstract: 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.

    Abstract translation: 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。

    Integrated spectroscopy system
    10.
    发明授权
    Integrated spectroscopy system 有权
    综合光谱系统

    公开(公告)号:US07292344B2

    公开(公告)日:2007-11-06

    申请号:US11380684

    申请日:2006-04-28

    CPC classification number: G01J3/36 G01J3/0256 G01J3/10 G01J3/26 G01N21/255

    Abstract: 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.

    Abstract translation: 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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