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    OPTICALLY PUMPED TUNABLE VCSEL EMPLOYING GEOMETRIC ISOLATION
    31.
    发明申请
    OPTICALLY PUMPED TUNABLE VCSEL EMPLOYING GEOMETRIC ISOLATION 审中-公开

    公开(公告)号：WO2019217868A1

    公开(公告)日：2019-11-14

    申请号：PCT/US2019/031795

    申请日：2019-05-10

    Applicant: AXSUN TECHNOLOGIES, INC.

    Inventor： JOHNSON, Bartley C. ,  ATIA, Walid A. ,  WHITNEY, Peter S. ,  KUZNETSOV, Mark E. ,  MALLON, Edward J.

    IPC: H01S5/04 ,  H01S5/183 ,  H01S5/068

    Abstract: An optically pumped tunable VCSEL swept source module has a VCSEL and a pump, which produces light to pump the VSCEL, wherein the pump is geometrically isolated from the VCSEL. In different embodiments, the pump is geometrically isolated by defocusing light from the pump in front of the VCSEL, behind the VCSEL, and/or by coupling the light from the pump at an angle with respect to the VCSEL. In the last case, angle is usually less than 88 degrees. There are further strategies for attacking pump noise problems. Pump feedback can be reduced through (1) Faraday isolation and (2) geometric isolation. Single frequency pump lasers (Distributed feedback lasers (DFB), distributed Bragg reflector lasers (DBR), Fabry-Perot (FP) lasers, discrete mode lasers, volume Bragg grating (VBG) stabilized lasers can eliminate wavelength jitter and amplitude noise that accompanies mode hopping.

    LASER SWEPT SOURCE WITH CONTROLLED MODE LOCKING FOR OCT MEDICAL IMAGING
    32.
    发明申请
    LASER SWEPT SOURCE WITH CONTROLLED MODE LOCKING FOR OCT MEDICAL IMAGING 审中-公开
    激光切割源与控制模式锁定用于OCT医学成像

    公开(公告)号：WO2012092290A1

    公开(公告)日：2012-07-05

    申请号：PCT/US2011/067413

    申请日：2011-12-27

    Applicant: AXSUN TECHNOLOGIES, INC. ,  JOHNSON, Bartley C. ,  FLANDERS, Dale C.

    Inventor： JOHNSON, Bartley C. ,  FLANDERS, Dale C.

    IPC: H01S5/062 ,  H01S5/14 ,  H01S5/065 ,  H01S3/067 ,  H01S3/094 ,  H01S3/106 ,  H01S5/026 ,  H01S3/098

    CPC classification number: H01S5/141 ,  A61B5/0066 ,  A61B5/6852 ,  G01B9/02004 ,  G01B9/02091 ,  G01N21/4795 ,  H01S3/06791 ,  H01S3/083 ,  H01S3/094026 ,  H01S3/1062 ,  H01S3/1109 ,  H01S3/1118 ,  H01S5/02284 ,  H01S5/0265 ,  H01S5/041 ,  H01S5/06216 ,  H01S5/0622 ,  H01S5/0657 ,  H01S5/146

    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 lenght.

    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和稳定在低时钟抖动和RIN状态，并且在特定情况下，除了通常的短到长（红色）之外还允许长波长到短波长的调谐 移）。 激光器可以包括SOA（410），作为一个反射器的可调谐法布里 - 珀罗滤光片（412）和用于调节空腔长度的光纤（406）中的输出耦合器（405）。

    FILTERED ASE SWEPT SOURCE FOR OCT MEDICAL IMAGING
    33.
    发明申请
    FILTERED ASE SWEPT SOURCE FOR OCT MEDICAL IMAGING 审中-公开
    过滤的ASE SWEPT来源用于OCT医学成像

    公开(公告)号：WO2011028999A2

    公开(公告)日：2011-03-10

    申请号：PCT/US2010/047813

    申请日：2010-09-03

    Applicant: AXSUN TECHNOLOGIES, INC. ,  FLANDERS, Dale, C. ,  ATIA, Walid A. ,  KUZNETSOV, Mark E.

    Inventor： FLANDERS, Dale, C. ,  ATIA, Walid A. ,  KUZNETSOV, Mark E.

    IPC: G01N21/47

    CPC classification number: 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

    Abstract: An integrated swept wavelength optical source uses a narrowband filtered broadband signal, such as a filtered amplified spontaneous emission (ASE) signal, with an optical amplifier and tracking filter and/or self-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 possibly a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. In a self-tracking arrangement, 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.

    Abstract translation: 集成扫描波长光源使用窄带滤波的宽带信号，例如经滤波放大的自发发射（ASE）信号，具有光放大器和跟踪滤波器和/或自跟踪滤波器。 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，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信号，放大器，安装在 用于放大可调信号，以及可能的第二可调法布里珀罗滤波器，安装在工作台上，用于对来自放大器的放大的可调谐信号进行频谱滤波。 在自跟踪装置中，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。

    INTEGRATED SPECTROSCOPY SYSTEM
    34.
    发明申请
    INTEGRATED SPECTROSCOPY SYSTEM 审中-公开
    集成光谱系统

    公开(公告)号：WO2005038418A2

    公开(公告)日：2005-04-28

    申请号：PCT/US2004/034691

    申请日：2004-10-13

    Applicant: AXSUN TECHNOLOGIES, INC. ,  ATIA, Walid A. ,  FLANDERS, Dale C. ,  KOTIDIS, Petros ,  KUZNETSOV, Mark E.

    Inventor： ATIA, Walid A. ,  FLANDERS, Dale C. ,  KOTIDIS, Petros ,  KUZNETSOV, Mark E.

    IPC: G01J3/10

    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，提供了使用一个或多个法布里 - 珀罗可调谐滤波器的集成可调谐检测器。 其他示例使用集成的可调源。 可调光源结合了一个或多个二极管，例如超发光发光二极管（SLED）以及法布里珀罗可调谐滤波器或标准具。 与可调式标准具的使用相关的优点是它可以是小型的，功耗相对较低的设备。 例如，这些器件的新型微电子机械系统（MEMS）实现使它们成为芯片的尺寸。 这增加了他们的健壮性和他们的表现。 在一些示例中，进一步提供集成的隔离器，放大器和/或参考系统。

    CONTROLLED STRESS OPTICAL COATINGS FOR MEMBRANES
    35.
    发明申请
    CONTROLLED STRESS OPTICAL COATINGS FOR MEMBRANES 审中-公开
    用于膜的受控应力光学涂层

    公开(公告)号：WO2002073248A2

    公开(公告)日：2002-09-19

    申请号：PCT/US2002/002732

    申请日：2002-01-30

    Applicant: AXSUN TECHNOLOGIES, INC. ,  COOK, Christopher, C.

    Inventor： COOK, Christopher, C.

    IPC: G02B1/10

    CPC classification number: C23C14/22 ,  C23C14/546 ,  Y10T428/24942

    Abstract: A thin membrane (24) having a thin film optical coating thereon is formed from multiple layers of different materials in which the overall stress of the thin film is not more than 15 MPa. Such films can be formed through thermal evaporation with ion assist, by directing an electron beam (14) on a source (16) and evaporating material from the source (16) onto a thin flexible membrane (24) while directing an ion stream (44) onto the membrane device (34). The current of the source of the ion stream should be sufficient to provide a thin film coating that has substantially no porosity. Successive applications at constant current can be deposited, while varying the voltage of the ion stream (44). The stress of the thin films deposited under each different voltage can be evaluated and the voltage at which the stress is acceptably low can be determined.

    Abstract translation: 其上具有薄膜光学涂层的薄膜（24）由多层不同材料形成，其中薄膜的总应力不超过15MPa。 通过将电子束（14）引导到源（16）上并将材料从源（16）引导到薄柔性膜（24）上，同时引导离子流（44），可以通过热离子辅助形成薄膜 ）到膜装置（34）上。 离子流源的电流应足以提供基本上没有孔隙率的薄膜涂层。 可以在改变离子流（44）的电压的同时沉积恒定电流的连续应用。 可以评估在每个不同电压下沉积的薄膜的应力，并且可以确定应力可接受的低电压。

    OPTICAL COMPONENT INSTALLATION PROCESS
    36.
    发明申请
    OPTICAL COMPONENT INSTALLATION PROCESS 审中-公开
    光学元件安装工艺

    公开(公告)号：WO2001037005A2

    公开(公告)日：2001-05-25

    申请号：PCT/US2000031392

    申请日：2000-11-15

    Applicant: AXSUN TECHNOLOGIES, INC. ,  FLANDERS, Dale, C. ,  WHITNEY, Peter, S.

    Inventor： AXSUN TECHNOLOGIES, INC.

    IPC: G02B

    CPC classification number: G02B6/3656 ,  G02B6/32 ,  G02B6/327 ,  G02B6/3586 ,  G02B6/3636 ,  G02B6/3644 ,  G02B6/3696 ,  G02B6/4201 ,  G02B6/4225 ,  G02B6/4226 ,  G02B6/4237 ,  G02B6/4238 ,  G02B6/4243 ,  G02B6/4249 ,  G02B6/4256 ,  G02B7/003 ,  G02B27/62

    Abstract: Mounting and alignment structures for optical components allow optical components to be connected to an optical bench and then subsequently aligned, i.e., either passively or actively, in a manufacturing or subsequent calibration or recalibration, alignment or realignment processes. The structures comprise quasi-extrusion portions. This portion is "e;quasi-extrusion"e; in the sense that it has a substantially constant cross section in a z-axis direction as would be yielded in an extrusion manufacturing process. The structures further comprise at least one base, having a laterally-extending base surface, and an optical component interface. At least one armature connects the optical component interface with the base. In the preferred embodiment, the base surface is securable to an optical bench.

    Abstract translation: 用于光学部件的安装和对准结构允许光学部件连接到光学平台，然后在制造或随后的校准或重新校准，对准或重新对准过程中随后对准，即被动地或主动地对准。 该结构包括准挤压部分。 在挤出制造过程中将产生在z轴方向上具有基本上恒定的横截面的意义上，该部分是“准挤压”。 所述结构还包括至少一个具有横向延伸的基面的基座和光学部件接口。 至少一个电枢将光学元件接口与基座连接。 在优选实施例中，基座表面可固定到光学平台。

    Integrated optical coherence analysis system
    37.
    发明授权
    Integrated optical coherence analysis system 有权

    公开(公告)号：US11092426B2

    公开(公告)日：2021-08-17

    申请号：US15714365

    申请日：2017-09-25

    Applicant: Axsun Technologies, Inc.

    Inventor： Bartley C. Johnson ,  Dale C. Flanders

    IPC: G01B9/02 ,  A61B5/00 ,  G01N21/47

    Abstract: 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.

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