Hybrid optical isolator, circulator or switch, and systems utilizing same
    2.
    发明公开
    Hybrid optical isolator, circulator or switch, and systems utilizing same 失效
    混合光隔离器,循环器或开关,以及使用它们的系统

    公开(公告)号:EP0429216A3

    公开(公告)日:1992-03-11

    申请号:EP90312186.1

    申请日:1990-11-07

    申请人: AT&T Corp.

    IPC分类号: G02F1/095 G02B6/26

    摘要: An optical circulator/isolator (10) is implemented in a semiconductor package formed by a semiconductor substrate (22), which supports integral thin film waveguide polarization splitters and combiners (12, 14), and a semiconductor lid, which supports four spherical lenses (18) and a polarization rotator (16). The latter is a composite of at least two adjacent slabs of optically active material, one slab serving as a nonreciprocal 45° rotator (e.g., a Faraday rotator 16.1) and the other as a reciprocal 45° rotator (e.g., half-wave device 16.2). The lenses, serving both as beam expanders/condensers and as collimators, are positioned between the waveguide ends and major surfaces of the composite slab. When used with means for reversing the of the magnetic field in the nonreciprocal rotator, the device functions also as a switch. Also described are system architectures made possible by these devices; e.g., a single-fiber LAN having a ring architecture for non-interfering counter flow of information and a single fiber, bidirectional FTTH system for handling CATV and POTS. FIG. 1

    Adiabatic reflection apparatus
    3.
    发明公开
    Adiabatic reflection apparatus 失效
    Adiabatische Reflexionsvorrichtung。

    公开(公告)号:EP0468715A2

    公开(公告)日:1992-01-29

    申请号:EP91306622.1

    申请日:1991-07-19

    申请人: AT&T Corp.

    IPC分类号: G02B6/28 H04B10/18 G02B6/14

    摘要: A wavelength selective structure (12) is coupled to an adiabatic Y-coupler (14) via a multimode section (13) which supports both symmetric and antisymmetric modes. One single mode branch (14.1) of the coupler converts guided light to a symmetric mode, whereas the other single mode branch (14.2) converts guided light to an anti-symmetric mode. The structure (12), which includes a pair of single mode waveguide arms (12.1, 12.2) coupled to the common section (13) and a reflection device (20.1, 20.2) (such as a grating or ROR) located in each arm, converts reflected light from a symmetric mode to an anti-symmetric mode and conversely. Applications described include a channel dropping filter and channel balancing apparatus for WDM systems, and a dispersion compensator for fiber optic systems.

    摘要翻译: 波长选择结构(12)通过支持对称和反对称模式的多模部分(13)耦合到绝热Y耦合器(14)。 耦合器的一个单模分支(14.1)将引导光转换为对称模式,而另一个单模分支(14.2)将引导光转换为反对称模式。 结构(12),其包括耦合到公共部分(13)的一对单模波导臂(12.1,12.2)和位于每个臂中的反射装置(例如光栅或ROR) 将反射光从对称模式转换为反对称模式,反之亦然。 所描述的应用包括用于WDM系统的信道丢弃滤波器和信道平衡装置,以及用于光纤系统的色散补偿器。

    Hybrid optical isolator, circulator or switch, and systems utilizing same
    4.
    发明公开
    Hybrid optical isolator, circulator or switch, and systems utilizing same 失效
    光隔离器,循环器或开关,以混合动力施工和使用它的系统。

    公开(公告)号:EP0429216A2

    公开(公告)日:1991-05-29

    申请号:EP90312186.1

    申请日:1990-11-07

    申请人: AT&T Corp.

    IPC分类号: G02F1/095 G02B6/26

    摘要: An optical circulator/isolator (10) is implemented in a semiconductor package formed by a semiconductor substrate (22), which supports integral thin film waveguide polarization splitters and combiners (12, 14), and a semiconductor lid, which supports four spherical lenses (18) and a polarization rotator (16). The latter is a composite of at least two adjacent slabs of optically active material, one slab serving as a nonreciprocal 45° rotator (e.g., a Faraday rotator 16.1) and the other as a reciprocal 45° rotator (e.g., half-wave device 16.2). The lenses, serving both as beam expanders/condensers and as collimators, are positioned between the waveguide ends and major surfaces of the composite slab. When used with means for reversing the of the magnetic field in the nonreciprocal rotator, the device functions also as a switch. Also described are system architectures made possible by these devices; e.g., a single-fiber LAN having a ring architecture for non-interfering counter flow of information and a single fiber, bidirectional FTTH system for handling CATV and POTS. FIG. 1

    摘要翻译: 的光环行器/隔离器(10),在通过在半导体衬底(22),它支持积分薄膜波导偏振分离器和组合器(12,14)形成的半导体封装和半导体盖,其中支持四个球面透镜被实现( 18)和一个偏振旋转器(16)。 后者是光学活性物质中的至少两个相邻的板,的复合一个平板用作不可逆45°旋转器(例如,一个法拉第旋转器16.1),而另一个为倒数45°旋转器(例如,半波装置16.2 )。 透镜,用作扩束两者/冷凝器和作为准直器,被定位之间的波导端部和所述复合板的主表面。 当与用于反转的磁场中的不可逆旋转器使用的,设备功能,从而作为开关。 这样描述的是由合成装置成为可能的系统结构; E. G.,具有用于非干扰的信息逆流和单个纤维,双向FTTH系统用于处理CATV和POTS一个环结构的单纤维LAN。 图 1

    Adiabatic polarization manipulating device
    5.
    发明公开
    Adiabatic polarization manipulating device 失效
    Baielementfürdie adiabatischeVeränderungder Polarization。

    公开(公告)号:EP0389172A2

    公开(公告)日:1990-09-26

    申请号:EP90302733.2

    申请日:1990-03-14

    申请人: AT&T Corp.

    IPC分类号: G02B6/28 G02B6/12

    CPC分类号: G02B6/126

    摘要: A TE-TM polarization manipulating (i.e., splitting, combining or filtering) device is constructed from substrate-supported dielectric thin film waveguides. In a 3-port device, two waveguides (10,12) have cores (10.1, 12.1) of different materials and different effective refractive indices. The waveguide cores overlap in a first transition section (18) and one waveguide core has an adiabatic taper (12.6); in this section they also separate adiabatically and are coupled to a second (e.g., output) section (16) where the waveguides are physically separate and optically decoupled. In a 4-port device, two additional waveguides are coupled in a second adiabatic transition section to the first transition section to enable TE or TM modes to be coupled straight through the device from one input port to a directly opposite output port or to be crossed-over from one input port to a diagonally opposite output port.

    摘要翻译: 由衬底支撑的电介质薄膜波导构成TE-TM偏振操作(即,分离,组合或滤波)器件。 在3端口设备中,两个波导(10,12)具有不同材料和不同有效折射率的芯(10.1,12.1)。 波导芯在第一过渡段(18)中重叠,一个波导芯具有绝热锥度(12.6); 在该部分中,它们还绝热地分离并且耦合到第二(例如,输出)部分(16),其中波导在物理上是分开的并且是光学去耦合的。 在4端口设备中,两个附加波导在第二绝热过渡部分耦合到第一过渡部分,以使得TE或TM模式能够通过设备从一个输入端口直接耦合到直接相对的输出端口或被交叉 - 从一个输入端口到对角线相对的输出端口。

    Adiabatic reflection apparatus
    8.
    发明公开
    Adiabatic reflection apparatus 失效
    绝热反射装置

    公开(公告)号:EP0468715A3

    公开(公告)日:1992-08-19

    申请号:EP91306622.1

    申请日:1991-07-19

    申请人: AT&T Corp.

    IPC分类号: G02B6/28 H04B10/18 G02B6/14

    摘要: A wavelength selective structure (12) is coupled to an adiabatic Y-coupler (14) via a multimode section (13) which supports both symmetric and antisymmetric modes. One single mode branch (14.1) of the coupler converts guided light to a symmetric mode, whereas the other single mode branch (14.2) converts guided light to an anti-symmetric mode. The structure (12), which includes a pair of single mode waveguide arms (12.1, 12.2) coupled to the common section (13) and a reflection device (20.1, 20.2) (such as a grating or ROR) located in each arm, converts reflected light from a symmetric mode to an anti-symmetric mode and conversely. Applications described include a channel dropping filter and channel balancing apparatus for WDM systems, and a dispersion compensator for fiber optic systems.

    摘要翻译: 波长选择结构(12)经由支持对称和反对称模式的多模部分(13)耦合到绝热Y耦合器(14)。 耦合器的一个单模分支(14.1)将引导光转换为对称模式,而另一个单模分支(14.2)将引导光转换为反对称模式。 结构(12)包括耦合到公共部分(13)的一对单模波导臂(12.1,12.2)和位于每个臂中的反射装置(20.1,20.2)(例如光栅或ROR) 将来自对称模式的反射光转换为反对称模式,相反。 所描述的应用包括用于WDM系统的信道下降滤波器和信道平衡装置以及用于光纤系统的色散补偿器。

    Adiabatic polarization manipulating device
    9.
    发明公开
    Adiabatic polarization manipulating device 失效
    ADIABATIC偏振控制装置

    公开(公告)号:EP0389172A3

    公开(公告)日:1991-12-27

    申请号:EP90302733.2

    申请日:1990-03-14

    申请人: AT&T Corp.

    IPC分类号: G02B6/28 G02B6/12

    CPC分类号: G02B6/126

    摘要: A TE-TM polarization manipulating (i.e., splitting, combining or filtering) device is constructed from substrate-supported dielectric thin film waveguides. In a 3-port device, two waveguides (10,12) have cores (10.1, 12.1) of different materials and different effective refractive indices. The waveguide cores overlap in a first transition section (18) and one waveguide core has an adiabatic taper (12.6); in this section they also separate adiabatically and are coupled to a second (e.g., output) section (16) where the waveguides are physically separate and optically decoupled. In a 4-port device, two additional waveguides are coupled in a second adiabatic transition section to the first transition section to enable TE or TM modes to be coupled straight through the device from one input port to a directly opposite output port or to be crossed-over from one input port to a diagonally opposite output port.