公开(公告)号：WO2002062525A1

公开(公告)日：2002-08-15

申请号：PCT/US2001/051057

申请日：2001-10-07

Applicant: AXSUN TECHNOLOGIES, INC. ,  FLANDERS, Dale, C. ,  COPPETA, Jonathan, R. ,  FAWCETT, Steven, C. ,  KORN, Jeffrey, A.

Inventor： FLANDERS, Dale, C. ,  COPPETA, Jonathan, R. ,  FAWCETT, Steven, C. ,  KORN, Jeffrey, A.

IPC: B24B19/22

CPC classification number: B24B49/12 ,  B24B19/226 ,  G02B6/25

Abstract: An improved system and method for automated fiber polishing overcomes the limitations of conventional systems and methods. In particular, the present invention provides for continuous determination of the quality of the polish during a polishing procedure. An optical signal is transmitted to a fiber (28) tip, and any back-reflected signal is detected and monitored to determine polish quality. In this manner, automated polishing quality assurance is provided in real time.

Abstract translation: 用于自动纤维抛光的改进的系统和方法克服了常规系统和方法的局限性。 特别地，本发明提供了在抛光过程中连续确定抛光剂的质量。 光信号被传送到光纤（28）尖端，并且检测和监视任何反向反射的信号以确定抛光质量。 以这种方式，实时提供自动抛光质量保证。

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：WO2002035667A3

公开(公告)日：2002-05-02

申请号：PCT/US2001/045422

申请日：2001-10-24

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

Inventor： FLANDERS, Dale, C.

IPC: H01S5/14

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 provided that has a differential wavelength filter, e.g., stepped etalon, and a multi-element detector, e.g., a quad-detector. The controller then modulates the Fabry-Perot cavity to control the wavelength in response to the signal received from the multi-element detector.

公开(公告)号：WO2001037020A3

公开(公告)日：2001-05-25

申请号：PCT/US2000/031180

申请日：2000-11-14

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

Inventor： FLANDERS, Dale, C. ,  WHITNEY, Peter, S.

IPC: G02B6/42

Abstract: An alignment structure (100) maintains an optical fiber in a bore(113). The structure is fixed on a bench and is passively or actively aligned with a light source. Then the structure may be welded or soldered to the optical bench whereby the alignment may suffer due to heat transfer. To correct this, the alignment structure can be plastically deformed to correct the alignment after thecomponents have been fixed. The alignment structure has a substantially constant cross section in a z-axis direction as well as flexible links in order to allow displacements orthogonal to the optical axis. This mouvements will be initiated by seizing the component with a micro-positioner at a handle (136) and displacing it over the elastic limit to achieve permanent deformation.

公开(公告)号：WO2021030704A1

公开(公告)日：2021-02-18

申请号：PCT/US2020/046413

申请日：2020-08-14

Applicant: AXSUN TECHNOLOGIES, INC.

Inventor： JOHNSON, Bartley C. ,  KUZNETSOV, Mark E. ,  WHITNEY, Peter S.

IPC: H01S5/183

Abstract: A vertical cavity surface emitting laser (VCSEL) has a shortened overall laser cavity by combining the gain section with a distributed Bragg reflector (DBR). The overall cavity length can be contracted by placing gain structures inside the DBR. This generally applies to a number of semiconductor material systems and wavelength bands, but this scheme is very well suited to the AlGaAs/GaAs material system with strained InGaAs quantum wells as a gain medium, for example.

公开(公告)号：WO2020068824A1

公开(公告)日：2020-04-02

申请号：PCT/US2019/052690

申请日：2019-09-24

Applicant: AXSUN TECHNOLOGIES, INC.

Inventor： JOHNSON, Bartley C. ,  FORD, Timothy N. ,  WOO, Seungbum ,  ATIA, Walid A.

IPC: G01B9/02 ,  G06T7/50

Abstract: Methods and systems for increasing resolution and mitigating sidelobe artifacts on point spread functions in optical coherence tomography systems by addressing (1) the swept source's power variation across the scan band, (2) errors in sampling instances, and (3) window function selection.

公开(公告)号：WO2014074240A1

公开(公告)日：2014-05-15

申请号：PCT/US2013/061724

申请日：2013-09-25

Applicant: AXSUN TECHNOLOGIES, INC.

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

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.

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采样之间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。

公开(公告)号：WO2013154953A1

公开(公告)日：2013-10-17

申请号：PCT/US2013/035544

申请日：2013-04-08

Applicant: AXSUN TECHNOLOGIES, INC.

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

IPC: G01B9/02

CPC classification number: G01B9/02004 ,  G01B9/02007 ,  G01B9/02069 ,  G01B9/02091

Abstract: An optical coherence tomography system utilizes an optical swept source that frequency scans at least two different sweep rates. In this way, the system can perform large depth scans of the sample and then the same system can perform shorter depth high precision scans, in one specific example. In order to optimally use the analog to digital converter that samples the interference signal, the system further samples the interference signals at different optical frequency sampling intervals depending upon the selected sweep rates of the optical swept source. This allows the system to adapt to different sweep rates in an optimal fashion.

Abstract translation: 光学相干断层摄影系统利用光扫描源，其频率扫描至少两个不同的扫描速率。 这样，在一个具体的例子中，系统可以对样本执行大的深度扫描，然后相同的系统可以执行较短的深度高精度扫描。 为了最佳地使用对干扰信号进行采样的模数转换器，系统进一步根据所选择的扫频源的扫描速率，以不同的光频采样间隔采样干扰信号。 这允许系统以最佳方式适应不同的扫描速率。

公开(公告)号：WO2012091957A1

公开(公告)日：2012-07-05

申请号：PCT/US2011/065394

申请日：2011-12-16

Applicant: AXSUN TECHNOLOGIES, INC. ,  FLANDERS, Dale, C. ,  MURDZA, Randal

Inventor： FLANDERS, Dale, C. ,  MURDZA, Randal

IPC: G01B9/02

CPC classification number: G01B9/0203 ,  G01B9/02004 ,  G01B9/02051 ,  G01B9/02069 ,  G01B9/02091 ,  G01B2290/70

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。

公开(公告)号：WO2007112437A2

公开(公告)日：2007-10-04

申请号：PCT/US2007/065361

申请日：2007-03-28

Applicant: AXSUN TECHNOLOGIES, INC. ,  FLANDERS, Dale C. ,  KOTIDIS, Petros ,  WANG, Xiaomei

Inventor： FLANDERS, Dale C. ,  KOTIDIS, Petros ,  WANG, Xiaomei

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。