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    Apparatus and methods for light beam routing in telecommunication
    5.
    发明授权
    Apparatus and methods for light beam routing in telecommunication 有权
    电信中光束路由的设备和方法

    公开(公告)号：US09547276B2

    公开(公告)日：2017-01-17

    申请号：US14000203

    申请日：2012-02-15

    申请人： Neil Collings ,  Andreas Georgiou ,  Marua Michelle Redmond ,  Brian Robertson ,  Jinsong Liu ,  William Crossland ,  John Richard Moore ,  Daping Chu

    发明人： Neil Collings ,  Andreas Georgiou ,  Marua Michelle Redmond ,  Brian Robertson ,  Jinsong Liu ,  William Crossland ,  John Richard Moore ,  Daping Chu

    IPC分类号： H04Q11/00 ,  G03H1/08 ,  G03H1/22 ,  G02B5/32 ,  G02B6/35 ,  G02F1/1362

    CPC分类号： G03H1/0841 ,  G02B5/32 ,  G02B6/3558 ,  G02B6/3588 ,  G02F1/136277 ,  G03H1/0808 ,  G03H1/2294 ,  G03H2001/0816 ,  G03H2001/085 ,  G03H2210/44 ,  G03H2222/31 ,  G03H2225/32 ,  G03H2225/60 ,  G03H2226/02 ,  H04Q11/0005

    摘要： We describe a LCOS (liquid crystal on silicon) telecommunications light beam routing device, the device comprising: an optical input; a plurality of optical outputs; a LCOS spatial light modulator (SLM) in an optical path between said input and said output, for displaying a kinoform; a data processor, coupled to said SLM, configured to provide kinoform data for displaying said kinoform on said SLM; wherein said kinoform data defines a kinoform which routes a beam from said optical input to a selected said optical output; wherein said data processor is configured to input routing data defining said selected optical output and to calculate said kinoform data for routing said beam responsive to said routing data; and wherein said data processor is configured to calculate said kinoform data by: determining an initial phase pattern for said kinoform; calculating a replay field of said phase pattern; modifying an amplitude component of said replay field to represent a target replay field for said beam routing, retaining a phase component of said replay field to provide an updated replay field; performing a space-frequency transform on said updated replay field to determine an updated phase pattern for said kinoform; and repeating said calculating and updating of said replay field and said performing of said space-frequency transform until said kinoform for display is determined; and outputting said kinoform data for display on said LCOS SLM.

    摘要翻译： 我们描述了LCOS（硅上液晶）通信光束路由设备，该设备包括：光输入; 多个光输出; 在所述输入和所述输出之间的光路中的LCOS空间光调制器（SLM），用于显示kinoform; 耦合到所述SLM的数据处理器，被配置为提供用于在所述SLM上显示所述kinoform的kinoform数据; 其中所述kinoform数据定义将来自所述光输入的光束路由到所选择的所述光输出的kinoform; 其中所述数据处理器被配置为输入定义所述选择的光输出的路由数据并且计算所述kinoform数据以响应所述路由数据路由所述波束; 并且其中所述数据处理器被配置为通过以下步骤来计算所述kinoform数据：确定所述kinoform的初始相位模式; 计算所述相位图案的重放场; 修改所述重放场的幅度分量以表示所述波束路由的目标重播域，保留所述重播域的相位分量以提供更新的重播域; 对所述更新的重放字段执行空间频率变换以确定所述kinoform的更新的相位模式; 并且重复所述重放场的计算和更新以及所述执行所述空间 - 频率变换直到确定显示的所述kinoform为止; 并输出所述kinoform数据以便显示在所述LCOS SLM上。

    Optical beam routing apparatus and methods
    6.
    发明授权
    Optical beam routing apparatus and methods 有权
    光束路由设备及方法

    公开(公告)号：US09363582B2

    公开(公告)日：2016-06-07

    申请号：US14005257

    申请日：2012-03-07

    申请人： Daping Chu ,  Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  Brian Robertson

    发明人： Daping Chu ,  Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  Brian Robertson

    IPC分类号： H04Q11/00 ,  G02F1/29 ,  G03H1/00 ,  G03H1/22 ,  H04J14/02 ,  H04L12/721

    CPC分类号： H04Q11/0005 ,  G02F1/292 ,  G02F2203/12 ,  G02F2203/18 ,  G03H1/0005 ,  G03H1/2294 ,  G03H2225/32 ,  H04J14/0212 ,  H04L45/62 ,  H04Q2011/0016

    摘要： This invention relates to methods and apparatus for routing light beams in telecommunications devices using holographic techniques, in particular by displaying kinoforms on LCOS (Liquid Crystal on Silicon) devices. Thus we describe optical beam routing apparatus comprising: at least one optical input to receive an input beam; a plurality of optical outputs; a spatial light modulator (SLM) on an optical path between said optical input and said optical outputs; and a driver for said SLM to display a kinoform on said SLM to diffract said input beam into an output beam comprising a plurality of diffraction orders, wherein a routed one of said diffraction orders is directed to at least one selected said optical output; wherein said apparatus is configured to modify a wavefront of said output beam to reduce a coupling of said output beam into said selected optical output; and wherein said kinoform is adapted to compensate for said wavefront modification to compensate for said reduced coupling and thereby to reduce a coupling of other diffracted light from said input beam into others of said optical outputs than said at least one selected optical output.

    摘要翻译： 本发明涉及使用全息技术在电信设备中布置光束的方法和装置，特别是通过在LCOS（硅晶体）器件上显示基诺型。 因此，我们描述光束路由设备，包括：至少一个光输入端，用于接收输入光束; 多个光输出; 在所述光输入和所述光输出之间的光路上的空间光调制器（SLM）; 以及用于所述SLM的驱动器，用于在所述SLM上显示kinoform，以将所述输入光束衍射成包括多个衍射级的输出光束，其中所述衍射级中的一个所述衍射级指向至少一个所选择的所述光学输出; 其中所述装置被配置为修改所述输出光束的波前以减少所述输出光束到所述选择的光输出中的耦合; 并且其中所述kinoform适于补偿所述波前修正以补偿所述减小的耦合，从而减少来自所述输入光束的其它衍射光与所述至少一个所选择的光输出的耦合。

    OPTICAL BEAM ROUTING APPARATUS AND METHODS
    7.
    发明申请
    OPTICAL BEAM ROUTING APPARATUS AND METHODS 审中-公开
    光束路由装置和方法

    公开(公告)号：US20160301994A1

    公开(公告)日：2016-10-13

    申请号：US15174954

    申请日：2016-06-06

    申请人： Daping Chu ,  Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  Brian Robertson

    发明人： Daping Chu ,  Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  Brian Robertson

    IPC分类号： H04Q11/00 ,  H04J14/02

    CPC分类号： H04Q11/0005 ,  G02F1/292 ,  G02F2203/12 ,  G02F2203/18 ,  G03H1/0005 ,  G03H1/2294 ,  G03H2225/32 ,  H04J14/0212 ,  H04L45/62 ,  H04Q2011/0016

    摘要： This invention relates to methods and apparatus for routing light beams in telecommunications devices using holographic techniques, in particular by displaying kinoforms on Liquid Crystal on Silicon devices. At least one optical input to receives an input beam. A plurality of optical outputs and a spatial light modulator (SLM) on an optical path between said optical input and said optical outputs are provided, and a driver for said SLM to display a kinoform on said SLM diffracts said input beam into an output beam comprising a plurality of diffraction orders, wherein a routed one of said diffraction orders is directed to at least one selected said optical output; said apparatus is configured to modify a wavefront of said output beam to reduce a coupling of said output beam into said selected optical output; and said kinoform is adapted to compensate for said wavefront modification to compensate for said reduced coupling.

    摘要翻译： 本发明涉及用于使用全息技术在电信设备中布置光束的方法和装置，特别是通过在硅器件上显示液晶的方式和装置。 用于接收输入光束的至少一个光学输入。 提供了在所述光输入和所述光输出之间的光路上的多个光输出和空间光调制器（SLM），并且用于所述SLM的用于在所述SLM上显示kinoform的驱动器将所述输入波束衍射成包括 多个衍射级，其中所述衍射级中的一个所述衍射级指向至少一个所选择的所述光输出; 所述设备被配置为修改所述输出光束的波前以减少所述输出光束到所述选择的光输出中的耦合; 并且所述kinoform适于补偿所述波前修改以补偿所述减小的耦合。

    OPTICAL BEAM STEERING
    9.
    发明申请
    OPTICAL BEAM STEERING 有权
    光束转向

    公开(公告)号：US20110273657A1

    公开(公告)日：2011-11-10

    申请号：US13129029

    申请日：2009-11-13

    申请人： Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  John Richard Moore ,  David Nugent ,  Brian Robertson

    发明人： Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  John Richard Moore ,  David Nugent ,  Brian Robertson

    IPC分类号： G02F1/13

    CPC分类号： G02F1/31 ,  G02F1/136277 ,  G02F1/1393 ,  G02F1/292 ,  G02F2001/13355 ,  G02F2203/06 ,  G02F2203/585

    摘要： The invention relates to optical beam steering. There is described an optical beam steering apparatus, comprising: a splitter arranged to split an optical beam into at least a first part having a first polarisation and a second part having a second polarisation, said first and second polarisations being substantially mutually orthogonal; a first liquid crystal device region arranged to receive said first part and to have director orientation substantially aligned to said first polarisation; and a second liquid crystal device region arranged to receive said second part and to have director orientation substantially aligned to said second polarisation.

    摘要翻译： 本发明涉及光束转向。 描述了一种光束转向装置，包括：分离器，被布置成将光束分成至少具有第一偏振的第一部分和具有第二偏振的第二部分，所述第一和第二极化基本上相互正交; 布置成接收所述第一部分并且具有基本上与所述第一极化对准的导向器取向的第一液晶装置区域; 以及布置成接收所述第二部分并且具有基本上对准所述第二偏振的导向器取向的第二液晶装置区域。

    OPTICAL BEAM STEERING
    10.
    发明申请
    OPTICAL BEAM STEERING 审中-公开
    光束转向

    公开(公告)号：US20110280573A1

    公开(公告)日：2011-11-17

    申请号：US13129045

    申请日：2009-11-13

    申请人： Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  David Nugent ,  Brian Robertson

    发明人： Neil Collings ,  William Crossland ,  Maura Michelle Redmond ,  David Nugent ,  Brian Robertson

    IPC分类号： H04J14/02 ,  B23P17/04 ,  H04J14/00 ,  G02B27/00 ,  G02B5/32

    CPC分类号： G02F1/295 ,  G02F1/136277 ,  G02F1/313 ,  G02F2203/585 ,  Y10T29/49826

    摘要： This invention generally relates to an optical beam steering apparatus and a method of manufacturing an optical beam steering apparatus, and more particularly to an optical add drop multiplexer (OADM) such as a reconfigurable OADM (ROADM) comprising the optical beam steering apparatus. In one embodiment, the apparatus comprises a slab and a plurality of optical elements in or on a first surface of said slab, the plurality of optical elements including at least one liquid crystal on silicon element, the apparatus being arranged such that at least one optical beam can propagate freely in the slab from one of said plurality of optical elements to another one of said plurality of optical elements via a reflection from a second surface of the optical beam steering apparatus.

    摘要翻译： 本发明一般涉及一种光束转向装置和一种制造光束转向装置的方法，更具体地说，涉及包括光束转向装置的诸如可重构OADM（ROADM）的光分插复用器（OADM）。 在一个实施例中，该设备包括在所述板的第一表面中或上的多个光学元件中的平板和多个光学元件，所述多个光学元件包括硅元件上的至少一个液晶，所述设备被布置成使得至少一个光学 光束可以通过来自光束转向装置的第二表面的反射，在所述板坯中自由地从所述多个光学元件之一自由地传播到所述多个光学元件中的另一个。