公开(公告)号：CA2869750A1

公开(公告)日：2013-10-17

申请号：CA2869750

申请日：2013-04-08

Applicant: AXSUN TECH INC

Inventor： JOHNSON BARTLEY C ,  GOLDBERG BRIAN ,  FLANDERS DALE C

IPC: G01B9/02

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.

公开(公告)号：GB2427685A

公开(公告)日：2007-01-03

申请号：GB0619606

申请日：2005-05-12

Applicant: AXSUN TECH INC

Inventor： WANG XIAOMEI ,  FLANDERS DALE C ,  KOTIDIS PETER ,  COOK CHRISTOPHER C

IPC: G01N21/65 ,  B42D15/00 ,  G01N21/64 ,  G01N21/75 ,  G01N37/00 ,  G06K19/14 ,  G07D7/12

Abstract: To address counterfeit problems, for example, we propose a secure, flexible, and cost-effective authentication solution that can be integrated into conventional distribution logistic systems. The proposed solution for product authentication and distribution channel validation comprises three major components: 1) machine-readable Raman-active chemical taggant; 2) a taggant reader/eraser; and 3) erasable taggants. The proposed solution is to control and validate the distribution channel by authenticating the origin of products. Authentication is accomplished by verification of distinct taggants associated with the article, such as on its label, along with other product distribution information in optical, spatial-encoding indicia, such as a barcode. The taggant information is used to identify, validate, and distinguish the origin of the source of the articles, such as goods or products. The taggant material is thereafter rendered unreadable by modifying the taggants to make obtaining the encoded information unfeasible, thereby controlling the taggants' lifecycle.

公开(公告)号：AU2002236831A1

公开(公告)日：2002-08-06

申请号：AU2002236831

申请日：2002-01-22

Applicant: AXSUN TECH INC

Inventor： FLANDERS DALE C ,  WHITNEY PETER S ,  KUZNETSOV MARK E

IPC: G01J9/02 ,  H01S5/06 ,  H01S5/0687 ,  H01S5/14 ,  G02B27/28

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.

公开(公告)号：AU4155802A

公开(公告)日：2002-05-27

申请号：AU4155802

申请日：2001-10-24

Applicant: AXSUN TECH INC

Inventor： FLANDERS DALE C ,  KUZNETSOV MARK E

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

公开(公告)号：AU2442602A

公开(公告)日：2002-04-29

申请号：AU2442602

申请日：2001-10-17

Applicant: AXSUN TECH INC

Inventor： MILLER MICHAEL F ,  LE MINH VAN ,  COOK CHRISTOPHER C ,  FLANDERS DALE C ,  NAGLE STEVEN F

IPC: B81B3/00 ,  G02B26/00 ,  G02B6/00

公开(公告)号：AU4908201A

公开(公告)日：2001-09-17

申请号：AU4908201

申请日：2001-03-01

Applicant: AXSUN TECH INC

Inventor： FLANDERS DALE C ,  WHITNEY PETER S ,  MILLER MICHAEL F

IPC: G01J3/26 ,  G02B26/00 ,  G02B26/02

公开(公告)号：AU4335701A

公开(公告)日：2001-09-17

申请号：AU4335701

申请日：2001-03-01

Applicant: AXSUN TECH INC

Inventor： FLANDERS DALE C ,  WHITNEY PETER S ,  MILLER MICHAEL F

IPC: G01J3/26 ,  G02B7/188 ,  G02B26/00 ,  G02B26/02 ,  G02F1/21

Abstract: A tunable Fabry-Perot filter includes an optical cavity bounded by a stationary reflector and a deformable or movable membrane reflector. A second electrostatic cavity outside of the optical cavity includes a pair of electrodes, one of which is mechanically coupled to the movable membrane reflector. A voltage applied to the electrodes across the electrostatic cavity causes deflection of the membrane, thereby changing the length of the optical cavity and tuning the filter. The filter with the movable membrane can be formed by micro device photolithographic and fabrication processes from a semiconductor material in an integrated device structure. The membrane can include an inner movable membrane portion connected within an outer body portion by a pattern of tethers. The tether pattern can be such that straight or radial tethers connect the inner membrane with the outer body. Alternatively, a tether pattern with tethers arranged in a substantially spiral pattern can be used.

公开(公告)号：AU3634401A

公开(公告)日：2001-05-30

申请号：AU3634401

申请日：2000-11-14

Applicant: AXSUN TECH INC

Inventor： FLANDERS DALE C ,  WHITNEY PETER S

IPC: G02B6/32 ,  G02B6/35 ,  G02B6/36 ,  G02B6/38 ,  G02B6/42 ,  G02B7/00 ,  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 "quasi-extrusion" 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.