公开(公告)号：WO2003050488A1

公开(公告)日：2003-06-19

申请号：PCT/US2002/037684

申请日：2002-11-22

Applicant: CAPELLA PHOTONICS, INC.

Inventor： WILDE, Jeffrey, P. ,  POLYNKIN, Pavel

IPC: G01J3/28

CPC classification number: G01J3/433 ,  G01J3/02 ,  G01J3/021 ,  G01J3/26 ,  G01J3/2846 ,  G01J2001/4242 ,  G01J2003/2866 ,  G02B6/12004 ,  G02B6/272 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29391 ,  G02B6/4215 ,  G02B6/4249

Abstract: The present invention provides a method and apparatus (100) for optical spectral power monitoring employing novel frequency-division-multiplexing detection schemes. The optical spectral power monitoring apparatus (100) of the present invention uses a wavelength-dispersing means (e.g., a diffraction grating) (120) to separate a multi-wavelength optical signal into multiple spectral channels, and an array of beam-modulating elements (e.g., micromirrors) (140) 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 (110-2) 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.

Abstract translation: 本发明提供一种使用新的频分复用检测方案的光谱功率监测方法和装置（100）。 本发明的光谱功率监测装置（100）使用波长分散装置（例如，衍射光栅）（120）将多波长光信号分离成多个光谱通道，并且将光束调制元件阵列 （例如，微镜）（140），使得每个光束调制元件接收唯一的光谱通道之一。 波束调制元件是可单独控制的，使得耦合到输出端口（110-2）中的频谱通道的光功率电平携带不同的抖动调制信号。 通过执行抖动调制信号的同步检测，结合预定的校准表，可以导出多波长光信号的光功率谱。 这种抖动调制信号也可以用作用于识别光学网络应用中的各个频谱信道的“识别标记”（或频率标签）。

公开(公告)号：WO2003058183A1

公开(公告)日：2003-07-17

申请号：PCT/US2002/039137

申请日：2002-12-09

Applicant: CAPELLA PHOTONICS, INC.

Inventor： POLYNKIN, Pavel ,  WILDE, Jeffrey, P. ,  GARRETT, Mark, H.

IPC: G01J3/32

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.

Abstract translation: 一种使用时分复用检测方案进行光谱功率监测的方法和装置。 该装置使用诸如衍射光栅的波长分散装置（120）将光信号分离成多个光谱通道，以及定位成对应于光谱通道的光束操纵元件阵列（140）。 光束操纵元件是可单独控制的，以便以时分复用顺序将光谱通道引导到光学检测器（150）中。 该装置还可以采用极化分集方案来进行极化不敏感的操作。 这提高了设备​​的光谱分辨率，同时提供了光谱功率检测的改进的精度。 根据本公开构造的光谱功率监视器非常适合于WDM光网络应用。

公开(公告)号：WO2003025630A2

公开(公告)日：2003-03-27

申请号：PCT/US2002/030013

申请日：2002-09-19

Applicant: CAPELLA PHOTONICS, INC.

Inventor： WILDE, Jeffrey, P. ,  POLYNKIN, Pavel ,  TIMMONS, Michael, J. ,  GARRETT, Mark, H.

IPC: G02B

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.

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光谱通道和光谱阵列中的参考光谱分量， 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。

公开(公告)号：EP1459041A1

公开(公告)日：2004-09-22

申请号：EP02790048.9

申请日：2002-12-09

Applicant: Capella Photonics Inc.

Inventor： POLYNKIN, Pavel ,  WILDE, Jeffrey, P. ,  GARRETT, Mark, H.

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

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.

公开(公告)号：EP1428052A2

公开(公告)日：2004-06-16

申请号：EP02766333.5

申请日：2002-09-19

Applicant: Capella Photonics Inc.

Inventor： WILDE, Jeffrey, P. ,  POLYNKIN, Pavel ,  TIMMONS, Michael, J. ,  GARRETT, Mark, H.

IPC: G02B6/28 ,  G02B6/34 ,  G02B6/26 ,  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设备，它使用诸如衍射光栅（220）之类的波长色散装置，将多波长光信号连同参考信号一起按波长在空间上分成多个光谱通道和一个参考光谱分量 光谱阵列具有预定的相对对齐。 通过在预定位置对齐参考光谱分量，光谱通道同时入射到指定位置，例如在根据光谱阵列定位的光束接收元件阵列上。 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，从而确保频谱通道在指定位置保持对准。 本发明可用于构建用于WDM光网络应用的新系列基于伺服的光学系统，包括光谱功率监视器和光复用器/解复用器。