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.

公开(公告)号：CA2460975A1

公开(公告)日：2003-03-27

申请号：CA2460975

申请日：2002-09-19

Applicant: CAPELLA PHOTONICS INC

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

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

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, f or WDM optical networking applications.

公开(公告)号：CA2471553C

公开(公告)日：2012-05-22

申请号：CA2471553

申请日：2002-12-09

Applicant: CAPELLA PHOTONICS INC

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

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

Abstract: A method and apparatus for optical spectral power monitoring using a time-division-multiplexed detection scheme. The apparatus uses a wavelength-dispersing means (120) such as a diffraction grating to separate an optical signal into multiple spectral channels, and an array of beam-manipulating elements (140) 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 (150) in a time-division-multiplexed sequence. The apparatus may further employ a polarization diversity scheme for polarization-insensitive operation. This enhances the spectral resolution of the apparatus while providing improved accuracy in spectral power detection. Spectral power monitors constructed according to the present disclosure are well-suited for WDM optical networking applications.

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.

公开(公告)号：CA2471553A1

公开(公告)日：2003-07-17

申请号：CA2471553

申请日：2002-12-09

Applicant: CAPELLA PHOTONICS INC

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

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

Abstract: A method and apparatus for optical spectral power monitoring using a time- division-multiplexed detection scheme. The apparatus uses a wavelength- dispersing means (120) such as a diffraction grating to separate an optical signal into multiple spectral channels, and an array of beam-manipulating elements (140) 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 (150) in a time-division- multiplexed sequence. The apparatus may further employ a polarization diversity scheme for polarization-insensitive operation. This enhances the spectral resolution of the apparatus while providing improved accuracy in spectral power detection. Spectral power monitors constructed according to t he present disclosure are well-suited for WDM optical networking applications.

公开(公告)号：EP1428052A4

公开(公告)日：2004-12-08

申请号：EP02766333

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 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.

公开(公告)号：EP1459041A4

公开(公告)日：2007-02-21

申请号：EP02790048

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

CPC classification number: H04J14/02 ,  G01J3/021 ,  G01J3/0224 ,  G01J3/32 ,  G02B6/2706 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29397 ,  G02B6/4249 ,  G02B6/425 ,  H04J14/08

Abstract: A method and apparatus for optical spectral power monitoring using a time-division-multiplexed detection scheme. The apparatus uses a wavelength-dispersing means (120) such as a diffraction grating to separate an optical signal into multiple spectral channels, and an array of beam-manipulating elements (140) 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 (150) in a time-division-multiplexed sequence. The apparatus may further employ a polarization diversity scheme for polarization-insensitive operation. This enhances the spectral resolution of the apparatus while providing improved accuracy in spectral power detection. Spectral power monitors constructed according to the present disclosure are well-suited for WDM optical networking applications.