公开(公告)号：US20140168658A1

公开(公告)日：2014-06-19

申请号：US14159748

申请日：2014-01-21

Applicant: Axsun Technologies, Inc.

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

IPC: G01B9/02

CPC classification number: G01B9/02091 ,  G01B9/02004 ,  G01B9/02007 ,  G01B9/02069 ,  H01S3/1062 ,  H01S3/2383 ,  H01S5/141

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 to 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.

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;干涉仪，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;以及检测器系统，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。

公开(公告)号：US20130215432A1

公开(公告)日：2013-08-22

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: G02B5/22 ,  G01B9/02

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.

Abstract translation: 集成扫描波长光源使用经滤波的ASE信号与光放大器和跟踪滤波器。 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谐信号，放大器，安装在 用于放大可调信号的工作台，以及安装在工作台上的第二个可调谐法布里珀罗滤波器，用于对来自放大器的放大的可调谐信号进行频谱滤波。 单个可调谐滤波器既可以生成窄带信号又对放大的信号进行频谱滤波，则自我跟踪装置也是可能的。 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。 例如，不再需要组件之间的极化控制。

公开(公告)号：US20040227946A1

公开(公告)日：2004-11-18

申请号：US10868319

申请日：2004-06-15

Applicant: Axsun Technologies, Inc.

Inventor： Yu Li ,  Peter S. Whitney ,  Jeffrey A. Korn

IPC: G01J003/51 ,  G01N021/25

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.

公开(公告)号：US20030108306A1

公开(公告)日：2003-06-12

申请号：US10021765

申请日：2001-12-12

Applicant: AXSUN Technologies, Inc.

Inventor： Peter S. Whitney ,  Jeffrey A. Korn ,  Michael F. Miller ,  Raymond V. Pourmand

IPC: G02B006/42

CPC classification number: G02B6/29362 ,  G02B6/29395 ,  G02B6/4215 ,  G02B6/4251 ,  G02B6/4265 ,  G02B6/4271 ,  G02B6/4285 ,  G02B6/4286

Abstract: In optoelectronic systems, package moisture can affect stress levels in dielectric coatings on MEMS devices. Specifically, as the moisture content in these dielectric coatings changes, there are concomitant changes in the material stress. These changes in material stress can affect the operation of the overall MEMS device. Specifically, in the context of tunable filters, moisture can lead to a drift in the size of the optical resonant cavity over time as changes in material stress affect the MEMS structures. According to the invention, a getter is added to the package to absorb moisture, and thereby stabilize the operation of the optical filter, and specifically prevent uncontrolled drift in the size of its optical cavity.

Abstract translation: 在光电子系统中，封装湿度可以影响MEMS器件上的介电涂层中的应力水平。 具体来说，随着这些电介质涂层中的水分含量发生变化，材料应力随之发生变化。 材料应力的这些变化可能会影响整个MEMS器件的运行。 具体地说，在可调滤波器的上下文中，随着材料应力的变化影响MEMS结构，水分会随着时间的推移导致光学谐振腔的尺寸的漂移。 根据本发明，将吸气剂添加到包装中以吸收水分，从而稳定滤光器的操作，并且特别地防止其光腔的尺寸的不受控制的漂移。

公开(公告)号：US20020176688A1

公开(公告)日：2002-11-28

申请号：US09864659

申请日：2001-05-24

Applicant: Axsun Technologies, Inc.

Inventor： Xiaomei Wang

IPC: G02B006/00

CPC classification number: G02B6/4231 ,  G02B6/3636 ,  G02B6/3652 ,  G02B6/423 ,  G02B6/4249

Abstract: An bench assembly alignment apparatus and method provides for precision alignment of the assembly with an alignment feature on a substrate. The bench assembly may comprise, for example, a fiber array to be mounted to, and aligned with, an opto-electronic device within a device package. Passive alignment of the bench position and orientation is achieved in a manner that affords improved device yield and increased precision in an economical process that eliminates the need to fabricate an additional alignment surface on the side wall of the bench.

Abstract translation: 台式组件对准装置和方法提供了组件与衬底上的对准特征的精确对准。 台架组件可以包括例如要安装到设备封装内的光电器件并与其对准的光纤阵列。 实现了台座位置和取向的被动对准，其方式是提供了改进的装置产量并且在经济过程中提高了精度，从而消除了在工作台的侧壁上制造附加对准表面的需要。

公开(公告)号：US20020048446A1

公开(公告)日：2002-04-25

申请号：US09935156

申请日：2001-08-23

Applicant: AXSUN Technologies, Inc.

Inventor： Mona Masghati ,  Livia M. Racz

IPC: G02B006/00 ,  G02B006/26

CPC classification number: G02B7/003 ,  G02B6/3636 ,  G02B6/3656 ,  G02B6/3692 ,  G02B6/4226 ,  G02B6/4237 ,  G02B6/4238 ,  G02B6/4239 ,  G02B27/62

Abstract: An optical component 100 adapted for attachment to an optical bench or submount has an alignment feature 310 that is used in the positioning of the optical component 100 relative to the optical bench. This alignment feature 310 is formed in an exterior wall 210 of the optical component. Further, according to the preferred embodiment, the alignment feature 310 has a re-entrant sidewall 320. This last characteristic facilitates the identification of precise location of the alignment by a vision system, for example, thus, allowing the accurate placement and installation of the optical component on the optical bench 10.

Abstract translation: 适于附接到光学台或基座的光学部件100具有对准特征310，该对准特征310用于光学部件100相对于光学台的定位。 该对准特征310形成在光学部件的外壁210中。 此外，根据优选实施例，对准特征310具有入口侧壁320.该最后特征有助于通过视觉系统识别对准的精确位置，从而允许准确地布置和安装 光学平台10上的光学部件。

公开(公告)号：US20020011201A1

公开(公告)日：2002-01-31

申请号：US09908237

申请日：2001-07-18

Applicant: AXSUN Technologies, Inc.

Inventor： Zong-Long Liau ,  Margaret B. Stern

IPC: C30B028/12 ,  C30B023/00 ,  C30B028/14 ,  C30B025/00

CPC classification number: C30B29/40 ,  C23C16/4481 ,  C30B23/002

Abstract: An apparatus and method for creating a supply of group V vapor required for various material processing applications such as crystal growth or the mass transport process, when applied to III-V materials (e.g., GaP) comprises a stable source of group V material (e.g., a GaP wafer), a process tube, and inner tube, a three-zone furnace incorporating a cold trap zone for the group III material, and a nullloosenull plug for the process tube. The phosphorus vapor is generated by using a source GaP wafer placed at a higher temperature than that of the main process wafer in the mass transport process. When high phosphorous vapor concentration is desired, other solid sources such as InP or red P can be used. To minimize vapor loss to the ambient, both wafers are enclosed in a quartz tube equipped with a quartz plug. However, the source wafer generates not only phosphorus but also gallium vapor. The latter interferes with mass transport and needs to be filtered out. This is conveniently accomplished by employing a larger (longer) process tube and by further placing the source in a smaller inner tube within the main process tube. The source inner tube first directs the vapor to a cooler region, where gallium is selectively condensed out before it reaches the process wafer.

Abstract translation: 当应用于III-V材料（例如GaP）时，用于产生各种材料处理应用如晶体生长或质量传输过程所需的V族蒸气的供应的装置和方法包括稳定的V族材料源（例如 ，GaP晶片），工艺管和内管，三区域炉，其中包含用于组III材料的冷阱区和用于处理管的“松散”塞。 通过在质量传输过程中使用放置在比主工艺晶片更高的温度的源GaP晶片来产生磷蒸汽。 当需要高磷蒸气浓度时，可以使用其它固体源，例如InP或红P。 为了最小化对环境的蒸汽损失，将两个晶片封装在配备有石英塞的石英管中。 然而，源晶片不仅产生磷而且还产生镓蒸气。 后者干扰群众运输，需要过滤掉。 这通过采用较大的（较长）的工艺管并且进一步将源放置在主工艺管内较小的内管中而方便地完成。 源内管首先将蒸气引导到较冷的区域，其中镓在其到达处理晶片之前选择性地冷凝出来。

公开(公告)号：US20200284572A1

公开(公告)日：2020-09-10

申请号：US16811882

申请日：2020-03-06

Applicant: Axsun Technologies, Inc.

Inventor： Timothy N. Ford ,  Brian Goldberg

IPC: G01B9/02

Abstract: A system and method for measuring and correcting phase errors in an OCT system.

公开(公告)号：US20190027895A1

公开(公告)日：2019-01-24

申请号：US16129856

申请日：2018-09-13

Applicant: Axsun Technologies, Inc.

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

IPC: H01S5/068 ,  H01S5/183 ,  G01B9/02 ,  H01L33/00 ,  H01S5/022 ,  H01S5/024 ,  H01S5/04 ,  H01S5/06

Abstract: A microelectromechanical systems (MEMS)-tunable vertical-cavity surface-emitting laser (VCSEL) in which the MEMS mirror is bonded to the active region. This allows for a separate electrostatic cavity that is outside the laser's optical resonant cavity. Moreover, the use of this cavity configuration allows the MEMS mirror to be tuned by pulling the mirror away from the active region. This reduces the risk of snap down. Moreover, since the MEMS mirror is now bonded to the active region, much wider latitude is available in the technologies that are used to fabricate the MEMS mirror. This is preferably deployed as a swept source in an optical coherence tomography (OCT) system.

公开(公告)号：US10184783B2

公开(公告)日：2019-01-22

申请号：US15785142

申请日：2017-10-16

Applicant: Axsun Technologies, Inc.

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

IPC: G01B9/02 ,  H01S3/08 ,  H01S5/14 ,  H01S3/106 ,  H01S5/068 ,  H01S5/022 ,  H01S5/024

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.