公开(公告)号：EP3172527A1

公开(公告)日：2017-05-31

申请号：EP15748387.6

申请日：2015-07-27

Applicant: Axsun Technologies LLC ,  Johnson, Bartley C. ,  Larson, Noble G. ,  Goldberg, Brian ,  Kuznetsov, Mark E.

Inventor： JOHNSON, Bartley C. ,  LARSON, Noble G. ,  GOLDBERG, Brian ,  KUZNETSOV, Mark E.

IPC: G01B9/02 ,  A61B5/00

CPC classification number: G01B9/02067 ,  A61B5/0066 ,  G01B9/02004 ,  G01B9/02041 ,  G01B9/02069 ,  G01B9/02083 ,  G01B9/02091 ,  G01B2290/60

Abstract: Real-time swept source OCT data is most often sampled using a specially cut hardware k-clock. The present invention involves mathematically resampling signals within an FPGA-based data acquisition board based on data sampled from a wide free spectral range reference interferometer. The FPGA can then multiply up the reference clock rate to achieve greater imaging depth. The Nyquist fold-over depth can thus be programmed from a standard reference to an arbitrary depth, much as PLL frequency synthesizer can produce many frequencies from a standard stable reference. The system is also capable of real-time performance.

Abstract translation: 实时扫频源OCT数据通常采用特制的硬件k时钟进行采样。 本发明涉及基于从宽自由光谱范围参考干涉仪采样的数据在基于FPGA的数据采集板内对信号进行数学重采样。 然后，FPGA可以将参考时钟速率乘以实现更高的成像深度。 奈奎斯特折叠深度因此可以从标准参考编程到任意深度，就像PLL频率合成器可以从标准稳定参考产生许多频率一样。 该系统还具有实时性能。

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。

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。

公开(公告)号：WO0239803A3

公开(公告)日：2003-09-12

申请号：PCT/US0145747

申请日：2001-10-24

Applicant: AXSUN TECH INC ,  FLANDERS DALE C ,  KUZNETSOV MARK E

Inventor： FLANDERS DALE C ,  KUZNETSOV MARK E

IPC: H01S5/026 ,  H01S5/06 ,  H01S5/0687 ,  H01S5/14

CPC classification number: H01S5/141 ,  H01S5/02248 ,  H01S5/0264 ,  H01S5/0617 ,  H01S5/0687 ,  H01S5/142

Abstract: A semiconductor tunable laser system includes a tunable Fabry-Perot cavity and a cavity length modulator, which controls an optical length of the cavity at least over a distance corresponding to the spacings between the longitudinal modes of the laser cavity. Thus, the tunable Fabry-Perot cavity allows the laser cavity to have gain at the desired wavelength of operation while the cavity length modulator tunes the cavity length such that a longitudinal cavity mode exists at the desired wavelength of operation. Also, in one embodiment, a wavelength locker system is further provides that has a differential wavelength filter, e.g., stepped etalon, and a multi-element detector, e.g., a quad-detector. The controller then modulators the Fabry-Perot cavity to control the wavelength in response to the signal received from the multi-element detector.

Abstract translation: 半导体可调谐激光器系统包括可调谐的法布里 - 珀罗腔和空腔长度调制器，其控制空腔的光学长度至少在与激光腔的纵向模式之间的间隔相对应的距离上。 因此，可调谐法布里 - 珀罗腔允许激光腔在所需的操作波长下具有增益，而空腔长度调制器调节腔长度，使得纵向腔模式存在于所需的操作波长处。 而且，在一个实施例中，还提供波长锁定系统，其具有差分波长滤波器，例如阶梯式标准具，以及多元件检测器，例如四检测器。 然后，控制器调制法布里 - 珀罗腔，以响应于从多元件检测器接收到的信号来控制波长。

公开(公告)号：WO2006068815A1

公开(公告)日：2006-06-29

申请号：PCT/US2005/044045

申请日：2005-12-02

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

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

IPC: G01J3/447 ,  G01N21/39

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01N21/39 ,  G01N2021/399 ,  G01N2201/0612 ,  G01N2201/062 ,  G01N2201/08

Abstract: A semiconductor source spectroscopy system controls optical power variation of the tunable signal due to polarization dependent loss in the system and thus improves the noise performance of the system. It relies on using polarization control between the source and the sample and/or the sample and the detector.

Abstract translation: 半导体源光谱系统由于系统中偏振相关损耗而控制可调信号的光功率变化，从而提高了系统的噪声性能。 它依赖于使用源与样品和/或样品和检测器之间的偏振控制。

公开(公告)号：WO2002084830A2

公开(公告)日：2002-10-24

申请号：PCT/US2002/011539

申请日：2002-04-11

Applicant: AXSUN TECHNOLOGIES, INC. ,  KUZNETSOV, Mark, E.

Inventor： KUZNETSOV, Mark, E.

IPC: H01S5/00

CPC classification number: H01S5/18388 ,  H01S3/08045 ,  H01S3/08059 ,  H01S3/08072 ,  H01S5/141 ,  H01S2301/166

Abstract: An optical resonator including is designed is to degrade the ability of the resonator to supportsuppress higher order transverse spatial modes. The inventive optical resonator forces Higher higher order transverse modes to be fundamentally unstable in the inventive optical resonator, ultimately achievingultimately to achieving single transverse mode resonator operation. Specifically, the bounded phase deflection mirror shape or intracavity lens profile is tailored to confine the fundamental mode while rendering the higher order modes unstable. This has application in MEMS/MOEMS optical resonator devices by suppressing the side modes and increasing the side mode suppression ratio (SMSR), as well as improving SMSR tolerance to device external alignment, for example. This also has application to achieving single transverse mode operation in laser resonators, such as in semiconductor vertical-cavity surface-emitting lasers (VCSEL).

Abstract translation: 包括设计的光谐振器是降低谐振器支持更高阶横向空间模式的能力。 本发明的光学谐振器迫使更高阶的横向模式在本发明的光学谐振器中基本上不稳定，最终实现了最终实现单个横向模式谐振器操作。 具体来说，限定相位偏转镜形状或腔内透镜轮廓被定制以限制基本模式，同时使较高阶模态不稳定。 例如，通过抑制侧模式和增加侧模抑制比（SMSR）以及改善对设备外部对准的SMSR容限，可以在MEMS / MOEMS光谐振器中应用。 这也适用于在半导体垂直腔表面发射激光器（VCSEL）中实现激光谐振器中的单横模操作。

公开(公告)号：WO2002059550A3

公开(公告)日：2002-08-01

申请号：PCT/US2002/001815

申请日：2002-01-22

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

Inventor： KUZNETSOV, Mark E. ,  WHITNEY, Peter S. ,  FLANDERS, Dale C.

IPC: G01J9/02

Abstract: A wavelength measurement system uses birefringent material waveplate, thereby producing a substantially sinusoidal spectral response. As a result, the responses of multiple birefringent filters can be combined to yield a filter system with a periodic frequency response that has an additive wavelength resolution that is spectrally stable. That is, the wavelength measurement system (100) does not have regions where wavelength resolution is degraded. In one implementation, a waveplate system (112) is used, placed between two blocks of birefringent material (110) and (114). A quadrant detector (116) is used to detect the intensities of the resulting four beams.

公开(公告)号：WO2016015046A1

公开(公告)日：2016-01-28

申请号：PCT/US2015/042236

申请日：2015-07-27

Applicant: AXSUN TECHNOLOGIES LLC ,  JOHNSON, Bartley, C. ,  LARSON, Noble, G. ,  GOLDBERG, Brian ,  KUZNETSOV, Mark, E.

Inventor： JOHNSON, Bartley, C. ,  LARSON, Noble, G. ,  GOLDBERG, Brian ,  KUZNETSOV, Mark, E.

IPC: G01B9/02 ,  A61B5/00

CPC classification number: G01B9/02067 ,  A61B5/0066 ,  G01B9/02004 ,  G01B9/02041 ,  G01B9/02069 ,  G01B9/02083 ,  G01B9/02091 ,  G01B2290/60

Abstract: Real-time swept source OCT data is most often sampled using a specially cut hardware k- clock. The present invention involves mathematically resampling signals within an FPGA-based data acquisition board based on data sampled from a wide free spectral range reference interferometer. The FPGA can then multiply up the reference clock rate to achieve greater imaging depth. The Nyquist fold-over depth can thus be programmed from a standard reference to an arbitrary depth, much as PLL frequency synthesizer can produce many frequencies from a standard stable reference. The system is also capable of real-time performance.

Abstract translation: 实时扫频源OCT数据通常采用特制硬件k时钟采样。 本发明涉及在基于FPGA的数据采集板中基于从宽自由光谱范围参考干涉仪采样的数据对数字重采样信号。 然后，FPGA可以乘以参考时钟速率，以实现更大的成像深度。 因此，奈奎斯特折叠深度可以从标准参考编程到任意深度，就像PLL频率合成器可以从标准稳定参考产生许多频率。 该系统还具有实时性能。

公开(公告)号：WO2012092190A1

公开(公告)日：2012-07-05

申请号：PCT/US2011/067164

申请日：2011-12-23

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

Inventor： GOLDBERG, Brian ,  FLANDERS, Dale, C. ,  ATIA, Walid, A. ,  JOHNSON, Bartley, C. ,  KUZNETSOV, Mark, E.

IPC: A61B5/00 ,  H01S5/40 ,  H01S5/14

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。

公开(公告)号：WO2009140614A3

公开(公告)日：2010-03-18

申请号：PCT/US2009044173

申请日：2009-05-15

Applicant: AXSUN TECH INC ,  MELENDEZ CARLOS R ,  FLANDERS DALE C ,  ATIA WALID A ,  JOHNSON BART LEY C ,  KUZNETSOV MARK E

Inventor： MELENDEZ CARLOS R ,  FLANDERS DALE C ,  ATIA WALID A ,  JOHNSON BART LEY C ,  KUZNETSOV MARK E

IPC: G01B9/02 ,  G01J3/10 ,  G01N21/47 ,  H01S3/105 ,  H01S5/14

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 include 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。