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    Integrated dual swept source for OCT medical imaging
    21.
    发明授权
    Integrated dual swept source for OCT medical imaging 有权
    用于OCT医疗成像的集成双扫扫源

    公开(公告)号：US09593934B2

    公开(公告)日：2017-03-14

    申请号：US14175158

    申请日：2014-02-07

    Applicant: Axsun Technologies, Inc.

    Inventor： Brian Goldberg ,  Dale C. Flanders ,  Walid A. Atia ,  Bartley C. Johnson ,  Mark E. Kuznetsov

    IPC: G01B9/02 ,  G01N21/47 ,  H01S5/14 ,  A61B5/00 ,  H01S5/022 ,  H01S5/40

    CPC classification number: G01B9/02091 ,  A61B5/0066 ,  A61B5/0075 ,  G01N21/4795 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4068

    Abstract: 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.

    Abstract translation: 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。

    Integrated Dual Swept Source for OCT Medical Imaging
    22.
    发明申请
    Integrated Dual Swept Source for OCT Medical Imaging 有权
    用于OCT医疗成像的集成双扫描源

    公开(公告)号：US20140152997A1

    公开(公告)日：2014-06-05

    申请号：US14175158

    申请日：2014-02-07

    Applicant: Axsun Technologies, Inc.

    Inventor： Brian Goldberg ,  Dale C. Flanders ,  Walid A. Atia ,  Bartley C. Johnson ,  Mark E. Kuznetsov

    IPC: G01B9/02

    CPC classification number: G01B9/02091 ,  A61B5/0066 ,  A61B5/0075 ,  G01N21/4795 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4068

    Abstract: 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.

    Abstract translation: 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。

    OCT system with tunable clock system for flexible data acquisition
    23.
    发明申请
    OCT system with tunable clock system for flexible data acquisition 有权
    OCT系统具有可调谐时钟系统，用于灵活的数据采集

    公开(公告)号：US20140125986A1

    公开(公告)日：2014-05-08

    申请号：US13670935

    申请日：2012-11-07

    Applicant: Axsun Technologies, Inc.

    Inventor： Bartley C. Johnson ,  Dale C. Flanders

    IPC: G01B9/02

    CPC classification number: G01B9/02091 ,  G01B9/02004 ,  G01B9/02069

    Abstract: An OCT system and particularly its clock system generates a k-clock signal but also generates an optical frequency reference sweep signal that, for example, indicates the start of the sweep or an absolute frequency reference associated with the sweep at least for the purposes of sampling of the interference signal and/or processing of that interference signal into the OCT images. The clock system is also tunable to allow the control or flexibility over the relationship between the scanning of the swept optical signal and the sampling of the interference signal by the data acquisition system. Specifically, the absolute frequencies of the swept optical signal at which the k-clock signals are generated can be adjusted. Also, the absolute frequency of the swept optical signal at which sampling of the interference signal is initiated can also be changed or stabilized. Moreover, optical frequency sampling interval defined by the k-clock signal can be changed under user control or simply stabilized.

    Abstract translation: OCT系统，特别是其时钟系统产生k时钟信号，但是还产生光频参考扫描信号，其例如指示扫描的开始或与扫描相关联的绝对频率参考至少为了采样的目的 的干扰信号和/或将该干扰信号处理到OCT图像中。 时钟系统也是可调谐的，以允许对扫描光信号的扫描与数据采集系统对干扰信号的采样之间的关系的控制或灵活性。 具体地说，可以调整产生k时钟信号的扫描光信号的绝对频率。 此外，也可以改变或稳定干扰信号的采样开始的扫描光信号的绝对频率。 此外，由k时钟信号定义的光频采样间隔可以在用户控制下简单地稳定化。

    Method and System for Avoiding Package Induced Failure in Swept Semiconductor Source
    24.
    发明申请
    Method and System for Avoiding Package Induced Failure in Swept Semiconductor Source 有权
    扫描半导体源避免封装引发故障的方法和系统

    公开(公告)号：US20140119397A1

    公开(公告)日：2014-05-01

    申请号：US14150122

    申请日：2014-01-08

    Applicant: Axsun Technologies, Inc.

    Inventor： Peter S. Whitney ,  Dale C. Flanders

    IPC: H01S5/026 ,  G01B9/02

    CPC classification number: H01S5/026 ,  G01B9/02091 ,  H01S5/022 ,  H01S5/02216 ,  H01S5/0222 ,  H01S5/02224 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/068 ,  H01S5/06825 ,  H01S5/141 ,  H01S5/183

    Abstract: Dry oxygen, dry air, or other gases such as ozone are hermetically sealed within the package of the external cavity laser or ASE swept source to avoid packaging-induced failure or PLF. PIF due to hydrocarbon breakdown at optical interfaces with high power densities is believed to occur at the SLED and/or SOA facets as well as the tunable Fabry-Perot reflector/filter elements and/or output fiber. Because the laser is an external cavity tunable laser and the configuration of the ASE swept sources, the power output can be low while the internal power at surfaces can be high leading to PIF at output powers much lower than the 50 mW.

    Abstract translation: 干氧，干燥空气或其他气体如臭氧气密封在外腔激光器或ASE扫频源的封装内，以避免包装引起的故障或PLF。 相信在SLED和/或SOA面以及可调谐法布里 - 珀罗反射器/滤波器元件和/或输出光纤处发生由于在具有高功率密度的光学接口处的烃破坏引起的PIF。 因为激光器是外部可调谐激光器和ASE扫频源的配置，所以功率输出可能很低，而表面的内部功率可能很高，导致PIF的输出功率远低于50 mW。

    Optical Coherence Tomography Laser with Integrated Clock
    25.
    发明申请
    Optical Coherence Tomography Laser with Integrated Clock 有权
    光学相干层析成像激光器与集成时钟

    公开(公告)号：US20140016135A1

    公开(公告)日：2014-01-16

    申请号：US14028873

    申请日：2013-09-17

    Applicant: Axsun Technologies, Inc.

    Inventor： Dale C. Flanders ,  Walid A. Atia ,  Bartley C. Johnson ,  Mark E. Kuznetsov ,  Carlos R. Melendez

    IPC: G01B9/02

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

    System and process for side mode suppression by tunable filter train alignment in fiber optic system
    26.
    发明申请
    System and process for side mode suppression by tunable filter train alignment in fiber optic system 有权
    在光纤系统中通过可调谐滤波器排列进行侧面模式抑制的系统和过程

    公开(公告)号：US20030202190A1

    公开(公告)日：2003-10-30

    申请号：US10440838

    申请日：2003-05-16

    Applicant: Axsun Technologies, Inc.

    Inventor： Walid A. Atia ,  Randal A. Murdza

    IPC: G01B009/02

    CPC classification number: G02B6/4246 ,  G02B6/29358 ,  G02B6/29395 ,  G02B6/4222

    Abstract: A process for tunable filter train alignment comprises detecting a spectral response of the filter train and aligning an optical fiber that transmits an input optical signal to the filter train during operation. Further, the tunable filter is moved relative to the filter train in response to a spectral response of the filter train. As a result, the alignment and spectral response of the tunable filter train are optimized. In the preferred embodiment, the alignment and SMSR optimization occur simultaneously with respect to each other.

    Abstract translation: 可调谐过滤器排列的过程包括检测过滤器系列的光谱响应并使在操作期间将输入光信号传输到过滤器列的光纤对准。 此外，响应于过滤器列的频谱响应，可调谐滤波器相对于滤波器序列移动。 结果，优化了可调滤波器串的对准和光谱响应。 在优选实施例中，对齐和SMSR优化相对于彼此同时发生。

    Method for fabricating micro optical elements using CMP
    27.
    发明申请
    Method for fabricating micro optical elements using CMP 有权
    使用CMP制造微型光学元件的方法

    公开(公告)号：US20030085196A1

    公开(公告)日：2003-05-08

    申请号：US10007502

    申请日：2001-11-08

    Applicant: AXSUN Technologies, Inc.

    Inventor： Jonathan R. Coppeta

    IPC: B29D011/00 ,  C03C015/00

    CPC classification number: C03C19/00 ,  C03C15/00

    Abstract: A technique for fabricating the required surface shapes for micro optical elements, such as curved micro mirrors and lenses, starts with a simple, binary for example, approximation to the desired surface shape. Then polishing, e.g., chemical mechanical polishing (CMP), is used to form the smooth optical surface. Specifically, starting with a mesa or blind hole, with a mesa profile, a smooth mirror or lens structure is fabricated.

    Abstract translation: 用于制造微型光学元件（例如弯曲微型反射镜和透镜）的所需表面形状的技术从简单的二进制开始，例如近似于所需的表面形状。 然后使用抛光，例如化学机械抛光（CMP）来形成光滑的光学表面。 具体来说，从台面形状的台面或盲孔开始，制造平滑的镜面或透镜结构。

    PROCESS FOR FABRY-PEROT FILTER TRAIN CONFIGURATION USING DERIVED MODE FIELD SIZE
    28.
    发明申请
    PROCESS FOR FABRY-PEROT FILTER TRAIN CONFIGURATION USING DERIVED MODE FIELD SIZE 有权
    使用衍射模式现场尺寸的制造过滤器火车配置的过程

    公开(公告)号：US20020191269A1

    公开(公告)日：2002-12-19

    申请号：US10068258

    申请日：2002-02-06

    Applicant: Axsun Technologies, Inc.

    Inventor： Jeffrey A. Korn

    IPC: G02F001/03 ,  G02F001/07 ,  G02F001/33

    CPC classification number: G02B6/29359 ,  G02B6/29395 ,  G02B26/001 ,  G02B26/02 ,  H01S3/0078

    Abstract: A process for configuring a tunable MOEMS filter train comprises determining a spectral response of a MOEMS tunable filter. A spectral separation between different order modes, or free spectral range, is then determined for the filter. This information is then related to a mode size of a desired mode of the tunable filter. With this information, lenses for the optical train are provisioned, and then installed so that light is launched into the optical filter at the desired mode size to thereby maximize the SMSR of the filter train.

    Abstract translation: 用于配置可调谐MOEMS滤波器序列的过程包括确定MOEMS可调谐滤波器的频谱响应。 然后，为滤波器确定不同阶模之间的光谱间隔或自由光谱范围。 然后，该信息与可调滤波器的期望模式的模式大小相关。 利用该信息，设置用于光学列车的透镜，然后安装以使光以期望的模式尺寸发射到滤光器中，从而使滤波器列的SMSR最大化。

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