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    Method and apparatus for optical beam alignment detection and control
    2.
    发明专利
    Method and apparatus for optical beam alignment detection and control 未知

    公开(公告)号：AU2002331063A1

    公开(公告)日：2003-03-03

    申请号：AU2002331063

    申请日：2002-08-09

    Applicant: GLIMMERGLASS NETWORKS INC

    Inventor： DICKSON WILLIAM C

    IPC: G01M11/02 ,  G02B6/32 ,  G02B6/35 ,  G02B6/42 ,  G02B26/08 ,  G01J1/00

    Abstract: Methods and apparatus are provided for detection and control of multiple-axis active alignment for a free-space-coupled single-mode fiber-optic transmission system that automatically optimizes the coupling through the system. In a specific embodiment, a measurement of coupled power is made and error signals are used to control actuation via four axes of beam steering elements to null four generally orthogonal alignment errors (combinations of two lateral errors and two angular errors) of the beam between the input and output fibers. The four alignment errors are detected using a synchronous-detection approach. A feedback control system nulls the four errors.

    METHOD AND APPARATUS FOR OPTICAL BEAM ALIGNMENT DETECTION AND CONTROL
    4.
    发明专利
    METHOD AND APPARATUS FOR OPTICAL BEAM ALIGNMENT DETECTION AND CONTROL 未知

    公开(公告)号：CA2457934A1

    公开(公告)日：2003-02-27

    申请号：CA2457934

    申请日：2002-08-09

    Applicant: GLIMMERGLASS NETWORKS INC

    Inventor： DICKSON WILLIAM C

    IPC: G01M11/02 ,  G02B6/32 ,  G02B6/35 ,  G02B6/42 ,  G02B26/08 ,  G01J1/00

    Abstract: Methods and apparatus are provided for detection and control of multiple-axi s active alignment for a free-space-coupled single-mode fiber-optic transmissi on system that automatically optimizes the coupling through the system. In a specific embodiment, a measurement of coupled power is made and error signal s are used to control actuation via four axes of beam steering element to null four generally orthogonal alignment errors of the beam between the input (12 ) and output fibers (14). The four alignment errors are detected using a synchronous-detection approach. A feedback control system (100) nulls the fo ur errors.

    Method for calibrating a free-space-coupled fiber-optic transmission system
    5.
    发明专利
    Method for calibrating a free-space-coupled fiber-optic transmission system 未知

    公开(公告)号：AU2002329734A1

    公开(公告)日：2003-03-03

    申请号：AU2002329734

    申请日：2002-08-09

    Applicant: GLIMMERGLASS NETWORKS INC

    Inventor： DICKSON WILLIAM C

    IPC: G02B6/35 ,  H04B10/10 ,  G06F19/00

    Abstract: A method is provided for calibrating a free-space-coupled fiber-optic transmission system. The method uses signal content in the measured coupled power at frequencies equal to the sum, difference, and first harmonics of the frequencies of control-related dither signals to infer and correct errors in the kinematical model used to apply the dithers. The technique can operate independently or simultaneously with dither-based functions such as alignment control and power attenuation to provide continuous tracking of model terms. The calibration method does not require that any calibration-specific signals be injected into the system, or that the operation of primary functions be halted for the purpose of calibration.

    METHOD AND APPARATUS FOR OPTICAL BEAM ALIGNMENT DETECTION AND CONTROL
    6.
    发明专利
    METHOD AND APPARATUS FOR OPTICAL BEAM ALIGNMENT DETECTION AND CONTROL 未知

    公开(公告)号：CA2457934C

    公开(公告)日：2011-09-20

    申请号：CA2457934

    申请日：2002-08-09

    Applicant: GLIMMERGLASS NETWORKS INC

    Inventor： DICKSON WILLIAM C

    IPC: G01J1/00 ,  G01M11/02 ,  G02B6/32 ,  G02B6/35 ,  G02B6/42 ,  G02B26/08

    Abstract: Methods and apparatus are provided for detection and control of multiple-axis active alignment for a free-space-coupled single-mode fiber-optic transmission system that automatically optimizes the coupling through the system. In a specific embodiment, a measurement of coupled power is made and error signals are used to control actuation via four axes of beam steering element to null four generally orthogonal alignment errors of the beam between the input (12) and output fibers (14). The four alignment errors are detected using a synchronous-detection approach. A feedback control system (100) nulls the four errors.

    METHOD FOR CALIBRATING A FREE-SPACE-COUPLED FIBER-OPTIC TRANSMISSION SYSTEM
    9.
    发明申请
    METHOD FOR CALIBRATING A FREE-SPACE-COUPLED FIBER-OPTIC TRANSMISSION SYSTEM 审中-公开
    用于校准自由空间耦合光纤传输系统的方法

    公开(公告)号：WO03016959A3

    公开(公告)日：2003-04-10

    申请号：PCT/US0225562

    申请日：2002-08-09

    Applicant: GLIMMERGLASS NETWORKS INC

    Inventor： DICKSON WILLIAM C

    IPC: G02B6/35 ,  H04B10/10 ,  G06F19/00

    CPC classification number: G02B6/3586 ,  G02B6/3512 ,  G02B6/3556 ,  H04B10/112

    Abstract: A method is provided for calibrating a free-space-coupled fiber-optic transmission system 23, 30. The method uses signal content in the measured coupled power at frequencies equal to the sum, difference, and first harmonics of the frequencies of control-related dither signals to infer and correct errors in the kinematical model used to apply the dithers 109. The technique can operate independently or simultaneously with dither-based functions such as alignment control and power attenuation to provide continuous tracking of model terms 100. The calibration method does not require that any calibration-specific signals be injected into the system, or that the operation of primary functions be halted for the purpose of calibration 300.

    Abstract translation: 提供了用于校准自由空间耦合光纤传输系统23,30的方法。该方法使用测量的耦合功率中的信号内容，其频率等于控制相关频率的和，差和第一谐波 抖动信号来推断和校正用于施加抖动器109的运动模型中的误差。该技术可以独立或同时与基于抖动的函数（诸如对准控制和功率衰减）一起操作，以提供模型项100的连续跟踪。校准方法确实 不要求将任何校准特定的信号注入到系统中，或者为了校准300而停止主要功能的操作。

    METHOD AND APPARATUS FOR OPTICAL BEAM ALIGNMENT DETECTION AND CONTROL
    10.
    发明申请
    METHOD AND APPARATUS FOR OPTICAL BEAM ALIGNMENT DETECTION AND CONTROL 审中-公开
    用于光束对准检测和控制的方法和装置

    公开(公告)号：WO03016958A2

    公开(公告)日：2003-02-27

    申请号：PCT/US0225561

    申请日：2002-08-09

    Applicant: GLIMMERGLASS NETWORKS INC

    Inventor： DICKSON WILLIAM C

    IPC: G01M11/02 ,  G02B6/32 ,  G02B6/35 ,  G02B6/42 ,  G02B26/08 ,  G02B

    CPC classification number: G02B6/4227 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/3588 ,  G02B6/4225

    Abstract: Methods and apparatus are provided for detection and control of multiple-axis active alignment for a free-space-coupled single-mode fiber-optic transmission system that automatically optimizes the coupling through the system. In a specific embodiment, a measurement of coupled power is made and error signals are used to control actuation via four axes of beam steering elements to null four generally orthogonal alignment errors (combinations of two lateral errors and two angular errors) of the beam between the input and output fibers. The four alignment errors are detected using a synchronous-detection approach. A feedback control system nulls the four errors.

    Abstract translation: 提供了用于检测和控制用于自由空间耦合的单模光纤传输系统的多轴有源对准的方法和装置，其自动优化通过系统的耦合。 在具体实施例中，进行耦合功率的测量，并且使用误差信号来控制通过波束操纵元件的四个轴的致动，以将波束的四个大致正交对准误差（两个横向误差和两个角度误差的组合） 输入和输出光纤。 使用同步检测方法检测四个对准误差。 反馈控制系统将四个错误置零。

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