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    FREE-SPACE OPTICAL SYSTEMS FOR WAVELENGTH SWITCHING AND SPECTRAL MONITORING APPLICATIONS
    2.
    发明申请
    FREE-SPACE OPTICAL SYSTEMS FOR WAVELENGTH SWITCHING AND SPECTRAL MONITORING APPLICATIONS 审中-公开
    用于波长切换和光谱监测应用的自由空间光学系统

    公开(公告)号：WO03025630A3

    公开(公告)日：2003-07-31

    申请号：PCT/US0230013

    申请日：2002-09-19

    Applicant: CAPELLA PHOTONICS INC

    Inventor： WILDE JEFFREY P ,  POLYNKIN PAVEL ,  TIMMONS MICHAEL J ,  GARRETT MARK H

    IPC: G01J3/02 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36 ,  G01J3/433 ,  G01J3/447 ,  G02B5/18 ,  G02B5/30 ,  G02F1/13 ,  G02B6/28 ,  G02B6/26 ,  G02B6/34 ,  H04J14/02

    CPC classification number: G01J3/447 ,  G01J3/0224 ,  G01J3/2803 ,  G01J2003/2866

    Abstract: This invention provides a novel method and apparatus which use a wavelength-dispersing means such as a diffraction grating (220) to spatially separate a multi-wavelength optical signal along with a reference signal by wavelength into multiple spectral channels and a reference spectral component in a spectral array with a predetermined relative alignment. By aligning the reference spectral component at a predetermined location, the spectral channels simultaneously impinge onto designated locations, e.g., on an array of beam-receiving elements positioned in accordance with the spectral array. The reference spectral component may be further maintained at the predetermined location by way of servo-control (260), thereby ensuring that the spectral channels stay aligned at the designated locations. The present invention can be used to construct a new line of servo-based optical systems, including spectral power monitors and optical multiplexers/demultiplexers, for WDM optical networking applications.

    Abstract translation: 本发明提供了一种新颖的方法和装置，其使用诸如衍射光栅（220）的波长分散装置将多波长光信号与参考信号一起通过波长空间分离成多个频谱信道和参考频谱分量 光谱阵列具有预定的相对对准。 通过在预定位置对准参考光谱分量，光谱通道同时撞击到指定位置，例如在根据光谱阵列定位的波束接收元件的阵列上。 参考频谱分量可以通过伺服控制（260）进一步保持在预定位置，从而确保频谱信道在指定位置保持对准。 本发明可用于构建用于WDM光网络应用的基于伺服的光学系统的新系列，包括光功率监视器和光复用器/解复用器。

    Free-space optical systems for wavelength switching and spectral monitoring applications
    3.
    发明专利
    Free-space optical systems for wavelength switching and spectral monitoring applications 未知

    公开(公告)号：AU2002330075A1

    公开(公告)日：2003-04-01

    申请号：AU2002330075

    申请日：2002-09-19

    Applicant: CAPELLA PHOTONICS INC

    Inventor： WILDE JEFFREY P ,  TIMMONS MICHAEL J ,  GARRETT MARK H ,  POLYNKIN PAVEL

    IPC: G01J3/28 ,  G01J3/447 ,  G02B6/34 ,  G02B6/28 ,  H04J14/02 ,  G02B6/26

    Abstract: This invention provides a novel method and apparatus which use a wavelength-dispersing means such as a diffraction grating to spatially separate a multi-wavelength optical signal along with a reference signal by wavelength into multiple spectral channels and a reference spectral component in a spectral array with a predetermined relative alignment. By aligning the reference spectral component at a predetermined location, the spectral channels simultaneously impinge onto designated locations, e.g., on an array of beam-receiving elements positioned in accordance with the spectral array. The reference spectral component may be further maintained at the predetermined location by way of servo-control, thereby ensuring that the spectral channels stay aligned at the designated locations. The present invention can be used to construct a new line of servo-based optical systems, including spectral power monitors and optical multiplexers/demultiplexers, for WDM optical networking applications.

    OPTICAL SPECTRAL POWER MONITORS EMPLOYING FREQUENCY-DIVISION-MULTIPLEXING DETECTION SCHEMES
    4.
    发明专利
    OPTICAL SPECTRAL POWER MONITORS EMPLOYING FREQUENCY-DIVISION-MULTIPLEXING DETECTION SCHEMES 未知

    公开(公告)号：AU2002350252A1

    公开(公告)日：2003-06-23

    申请号：AU2002350252

    申请日：2002-11-22

    Applicant: CAPELLA PHOTONICS INC

    Inventor： POLYNKIN PAVEL ,  WILDE JEFFREY P

    IPC: G01J1/42 ,  G01J3/02 ,  G01J3/26 ,  G01J3/28 ,  G01J3/433 ,  G02B6/12 ,  G02B6/34 ,  G02B6/42

    Abstract: The present invention provides a method and apparatus for optical spectral power monitoring employing novel frequency-division-multiplexing detection schemes. The optical spectral power monitoring apparatus of the present invention uses a wavelength-dispersing means (e.g., a diffraction grating) to separate a multi-wavelength optical signal into multiple spectral channels, and an array of beam-modulating elements (e.g., micromirrors) positioned such that each beam-modulating element receives a unique one of the spectral channels. The beam-modulating elements are individually controllable such that the optical power levels of the spectral channels coupled into an output port carry distinct dither modulation signals. By performing a synchronous detection of the dither modulation signals, in conjunction with a predetermined calibration table, an optical power spectrum of the multi-wavelength optical signal can be derived. Such dither modulation signals may also be used as "identification markers" (or frequency tags) for identifying individual spectral channels in an optical networking application.

    OPTICAL SPECTRAL POWER MONITORS EMPLOYING TIME-DIVISION-MULTIPLEXING DETECTION SCHEMES
    5.
    发明专利
    OPTICAL SPECTRAL POWER MONITORS EMPLOYING TIME-DIVISION-MULTIPLEXING DETECTION SCHEMES 未知

    公开(公告)号：AU2002353073A1

    公开(公告)日：2003-07-24

    申请号：AU2002353073

    申请日：2002-12-09

    Applicant: CAPELLA PHOTONICS INC

    Inventor： POLYNKIN PAVEL ,  WILDE JEFFREY P ,  GARRETT MARK H

    IPC: G01J3/32 ,  G02B6/34 ,  G02B6/42 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  G02B6/293 ,  G02B6/35

    Abstract: The present invention provides a method and apparatus for optical spectral power monitoring that employ a time-division-multiplexed detection scheme. The optical spectral power monitoring apparatus of the present invention uses a wavelength-dispersing means such as a diffraction grating to separate a multi-wavelength optical signal into multiple spectral channels and an array of beam-manipulating elements positioned to correspond with the spectral channels. The beam-manipulating elements are individually controllable so as to direct the spectral channels into an optical detector in a time-division-multiplexed sequence. The optical spectral power monitoring apparatus may further employ a polarization diversity scheme, thereby becoming polarization insensitive. This enables the apparatus of the present invention to enhance spectral resolution, while providing improved accuracy in optical spectral power detection. Accordingly, a variety of novel optical spectral power monitors can be constructed according to the present invention, that are well suitable for WDM optical networking applications.

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