公开(公告)号：US09696471B2

公开(公告)日：2017-07-04

申请号：US13847616

申请日：2013-03-20

Applicant: Axsun Technologies, Inc.

Inventor： Dale C. Flanders ,  Walid A. Atia ,  Mark E. Kuznetsov

IPC: G01B9/02 ,  G02B5/22 ,  G01J3/10 ,  G01J3/26 ,  G01N21/47 ,  G01J3/433

CPC classification number: G02B5/22 ,  G01B9/02004 ,  G01B9/02091 ,  G01J3/10 ,  G01J3/26 ,  G01J3/4338 ,  G01N21/4795

Abstract: An integrated swept wavelength optical source uses a filtered ASE signal with an optical amplifier and 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 a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. A self-tracking arrangement is also possible where 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. For example, polarization control between components is no longer necessary.

公开(公告)号：US20140268166A1

公开(公告)日：2014-09-18

申请号：US13837425

申请日：2013-03-15

Applicant: AXSUN TECHNOLOGIES, INC.

Inventor： Dale C. Flanders

IPC: G01B9/02

CPC classification number: G01B9/02 ,  G01B9/02004 ,  G01B9/02044 ,  G01B9/02091

Abstract: An optical coherence tomography system uses an optical source that comprises a series of gain waveguides that generate light at the frequencies at which the interference signal is to be sampled. In this way, the optical source generates a discretely tuned optical signal. This has the advantage that the tuning can be directly controlled by a controller that is also used to synchronize the sampling of the interference signal. This avoids the need for separate frequency clock synchronization. In embodiments, the gain waveguides are fabricated from one or more semiconductor edge emitting bars. In some implementations, the gain waveguides comprise periodic structures that define the frequency of operation of the waveguide. However in other implementations, the combiner comprises a dispersive element, such as a diffractive grating, that provides frequency specific feedback to each waveguide.

Abstract translation: 光学相干断层摄影系统使用包括一系列增益波导的光源，该增益波导在干扰信号被采样的频率处产生光。 以这种方式，光源产生离散调谐的光信号。 这具有的优点是调谐可以由也用于同步干扰信号的采样的控制器直接控制。 这避免了单独的频率时钟同步的需要。 在实施例中，增益波导由一个或多个半导体边缘发射棒制成。 在一些实施方案中，增益波导包括限定波导的操作频率的周期性结构。 然而，在其他实现中，组合器包括向每个波导提供频率特定反馈的色散元件，例如衍射光栅。

公开(公告)号：US20140218741A1

公开(公告)日：2014-08-07

申请号：US14144636

申请日：2013-12-31

Applicant: Axsun Technologies, Inc.

Inventor： Bartley C. Johnson ,  Dale C. Flanders

IPC: H01S5/10 ,  G01B9/02

CPC classification number: G01B9/02091 ,  H01S3/08009 ,  H01S3/08013 ,  H01S3/083 ,  H01S3/105 ,  H01S3/1062 ,  H01S5/02284 ,  H01S5/141 ,  H01S5/146

Abstract: An optical coherence tomography system utilizes an optical swept laser that has cavity length compensator that changes an optical length of the laser cavity for different optical frequencies to increase the length of the laser cavity for lower optical frequencies. Specifically, a spectral separation between longitudinal cavity modes of the laser cavity is shortened or alternatively lengthened as a passband of a cavity tuning element sweeps through a scanband of the swept optical signal. In some examples, the compensator is implemented as two gratings. In others, it is implemented as a chirped grating device.

Abstract translation: 光学相干断层扫描系统利用具有腔长补偿器的光扫描激光器，其改变不同光频率的激光腔的光学长度，以增加用于较低光频率的激光腔的长度。 具体地说，当空腔调谐元件的通带扫过扫描光信号的扫描带时，激光腔的纵向腔模之间的光谱间隔被缩短或者可选地延长。 在一些示例中，补偿器被实现为两个光栅。 在其他方面，它被实现为啁啾光栅装置。

公开(公告)号：US20140185054A1

公开(公告)日：2014-07-03

申请号：US13729587

申请日：2012-12-28

Applicant: AXSUN TECHNOLOGIES, INC.

Inventor： Walid A. Atia ,  Randal A. Murdza ,  Peter S. Whitney

IPC: H01S3/10 ,  G01B9/02

CPC classification number: H01S5/0657 ,  G01B9/02004 ,  G01B9/02067 ,  G01B9/02069 ,  G01B9/02091 ,  H01S3/105 ,  H01S5/1039 ,  H01S5/141 ,  H01S5/146 ,  H01S5/3013

Abstract: An optical coherence analysis system uses a laser swept source that is constrained to operate in a stable mode locked condition by modulating a drive current to the semiconductor optical amplifier as function of wavelength or synchronously with the drive voltage of the laser's tunable element based on stability map for the laser.

Abstract translation: 光学相干分析系统使用激光扫描源，其被限制为在稳定模式锁定状态下操作，通过调制作为波长的函数的半导体光放大器的驱动电流或与激光器的可调元件的驱动电压基于稳定性图同步 为激光。

公开(公告)号：US20140163392A1

公开(公告)日：2014-06-12

申请号：US13712368

申请日：2012-12-12

Applicant: AXSUN TECHNOLOGIES, INC.

Inventor： Dale C. Flanders

IPC: A61B5/0215 ,  A61B5/01

CPC classification number: A61B5/02154 ,  A61B1/04 ,  A61B5/0002 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/01 ,  A61B5/02156 ,  A61B5/02158 ,  A61B5/6852 ,  A61B2562/0247 ,  A61B2562/0271 ,  A61B2562/043 ,  A61B2562/12 ,  A61B2562/164

Abstract: An intravascular sensor system including an array of pressure and/or temperature sensors for detecting pressure and/temperature. In one example, the sensors are interrogated with an optical catheter. In this example, the swept source is able to acquire both image and pressure/temperature data of a patient's vessel or artery. In another example, the intravascular pressure sensor system has a sheath embedded with pressure sensors in the sheath wall. Other examples include the process of making and using the intravascular pressure sensor system.

Abstract translation: 包括用于检测压力和/温度的压力和/或温度传感器阵列的血管内传感器系统。 在一个示例中，用光学导管询问传感器。 在该示例中，扫掠源能够获取患者的血管或动脉的图像和压力/温度数据。 在另一个实例中，血管内压力传感器系统具有在护壁内嵌有压力传感器的护套。 其他实例包括制造和使用血管内压力传感器系统的过程。

公开(公告)号：US20130271772A1

公开(公告)日：2013-10-17

申请号：US13650665

申请日：2012-10-12

Applicant: AXSUN TECHNOLOGIES, INC.

Inventor： Bartley C. Johnson ,  Brian Goldberg ,  Dale C. Flanders

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：US20040218509A1

公开(公告)日：2004-11-04

申请号：US10840814

申请日：2004-05-08

Applicant: Axsun Technologies, Inc.

Inventor： Dale C. Flanders ,  Steven F. Nagle ,  Margaret B. Stern

IPC: G11B007/24

CPC classification number: G02B26/001 ,  G02B5/1828 ,  G02B26/02 ,  G02B26/0833 ,  G02B26/0875

Abstract: An optical membrane device and method for making such a device are described. This membrane is notable in that it comprises an optically curved surface. In some embodiments, this curved optical surface is optically concave and coated, for example, with a highly reflecting (HR) coating to create a curved mirror. In other embodiments, the optical surface is optically convex and coated with, preferably, an antireflective (AR) coating to function as a refractive or diffractive lens.

Abstract translation: 对光学膜装置及其制造方法进行说明。 该膜是显着的，因为它包括光学曲面。 在一些实施例中，该弯曲的光学表面是光学凹入的并且例如用高反射（HR）涂层涂覆以形成弯曲的镜。 在其它实施例中，光学表面是光学凸起的并且涂覆有优选抗反射（AR）涂层，用作折射或衍射透镜。

公开(公告)号：US20040042005A1

公开(公告)日：2004-03-04

申请号：US10644498

申请日：2003-08-20

Applicant: Axsun Technologies, Inc.

Inventor： Yu Li

IPC: G01J003/00

CPC classification number: G01J3/26 ,  G01J3/02 ,  G01J3/0264 ,  G01J3/28

Abstract: A system and method for fast peak finding in an optical spectrum prioritizes the information it first generates and how the information is then forwarded from the system to a host computer, for example. A spectrum detection subsystem generates a spectrum of an optical signal. An analog-to-digital converter converts the spectrum into sample data. Finally, a data processing subsystem first detects the spectral locations of peaks in the spectrum using the sample data and then uploads the peak information to a host computer before performing processing to determine the shapes of the peaks and/or noise information for the optical signal, for example. The system is thus able to quickly find some information, such as whether or not channels or carriers are present, at what frequency the carriers are operating, and the carriers' power level, and send this information to the host computer. In contrast, information concerning spectral shape or the noise floor sent later in time.

Abstract translation: 用于光谱中快速峰值发现的系统和方法优先考虑其首先生成的信息，以及如何将信息从系统转发到主计算机。 频谱检测子系统产生光信号的频谱。 模数转换器将频谱转换为采样数据。 最后，数据处理子系统首先使用采样数据检测频谱中的峰值的频谱位置，然后在执行处理之前将峰值信息上传到主计算机，以确定光信号的峰值和/或噪声信息的形状， 例如。 因此，该系统能够快速地找到一些信息，例如信道或载波是否存在，载波运行的频率以及运营商的功率级别，并将该信息发送到主计算机。 相比之下，有关频谱形状或噪声底层的信息在时间上稍后发送。

公开(公告)号：US20040022283A1

公开(公告)日：2004-02-05

申请号：US10392357

申请日：2003-03-19

Applicant: Axsun Technologies, Inc.

Inventor： Mark E. Kuznetsov ,  Peter S. Whitney ,  Dale C. Flanders

IPC: H01S003/13

CPC classification number: H01S5/0687 ,  G01J9/0246 ,  H01S5/0617 ,  H01S5/141

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 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.

Abstract translation: 波长测量系统使用双折射材料波片，从而产生基本上正弦的光谱响应。 结果，可以组合多个双折射滤波器的响应以产生具有频谱稳定的附加波长分辨率的周期性频率响应的滤波器系统。 也就是说，波长测量系统不具有波长分辨率降低的区域。 在一个实现中，使用波片系统112，放置在双折射材料110和114的两个块之间。象限检测器116用于检测所得到的四个光束的强度。

公开(公告)号：US20030162003A1

公开(公告)日：2003-08-28

申请号：US10391835

申请日：2003-03-19

Applicant: Axsun Technologies, Inc.

Inventor： Walid A. Atia ,  Steven D. Conover ,  Eric E. Fitch ,  Sean P. O'Connor ,  Randal A. Murdza

IPC: B32B003/00

CPC classification number: G02B6/4226 ,  G02B6/4232 ,  G02B6/4238 ,  H05K3/303 ,  H05K2201/2036 ,  H05K2203/0186 ,  Y02P70/613 ,  Y10T29/49144 ,  Y10T29/49769 ,  Y10T29/49771 ,  Y10T29/49778 ,  Y10T29/49861 ,  Y10T29/53174 ,  Y10T428/24917

Abstract: A process for assembling micro-optical systems, such as optoelectronic and/or fiber optic components uses solder self-alignment to achieve a coarse, passive alignment of optical components relative to the optical bench. The fine, final alignment is performed using plastic deformation of the optical components to thereby improve the alignment of the optical components. As a result, the sub-micrometer alignment accuracies are attainable, if required.