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    Nonlinear optical switch
    162.
    发明授权
    Nonlinear optical switch 失效
    非线性光开关

    公开(公告)号：US06760492B1

    公开(公告)日：2004-07-06

    申请号：US10173435

    申请日：2002-06-18

    Applicant: John Lit ,  Hossam Zoweil

    Inventor： John Lit ,  Hossam Zoweil

    IPC: G02F1295

    CPC classification number: G02F1/3511 ,  G02F1/3515 ,  G02F2201/307 ,  G02F2203/05

    Abstract: The invention provides an optical switch for operation by an incident light. The optical switch has a linear grating portion having an average linear refractive index and a nonlinear grating portion, meeting at an interface. The nonlinear grating portion includes a plurality of periodically alternating layers of nonlinear materials having different refractive indices. The linear grating portion and the nonlinear grating portion are positioned to form a continuous sequence of alternating high and low refractive indices at low intensities. The incident light is substantially reflected at low intensities. At high intensities, a continuous sequence of alternating high and low refractive indices is formed, interrupted by a discontinuity at the interface, and the nonlinear grating portion has a second average nonlinear refractive index which is substantially equivalent to the average linear refractive index. Light having a narrow band of frequencies is substantially transmitted at high intensities.

    Abstract translation: 本发明提供一种用于通过入射光进行操作的光学开关。 光开关具有平均线性折射率的线性光栅部分和在界面处相遇的非线性光栅部分。 非线性光栅部分包括具有不同折射率的多个周期性交替的非线性材料层。 线性光栅部分和非线性光栅部分被定位成在低强度下形成交替的高和低折射率的连续序列。 入射光基本上以低强度反射。 在高强度下，形成交替的高折射率和低折射率的连续序列，由界面处的不连续中断，并且非线性光栅部分具有基本上等于平均线性折射率的第二平均非线性折射率。 具有窄频带的光基本上以高强度传输。

    Hitless tunable wavelength filters
    163.
    发明授权
    Hitless tunable wavelength filters 失效
    无心可调波长滤波器

    公开(公告)号：US06738543B1

    公开(公告)日：2004-05-18

    申请号：US10160383

    申请日：2002-05-30

    Applicant: Karl W. Beeson ,  Lawrence W. Shacklette ,  Manish Sharma ,  Han Zou

    Inventor： Karl W. Beeson ,  Lawrence W. Shacklette ,  Manish Sharma ,  Han Zou

    IPC: G02B626

    CPC classification number: H04Q11/0005 ,  G02F1/0147 ,  G02F2201/307 ,  G02F2203/585 ,  H04J14/02 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/021 ,  H04Q2011/0009

    Abstract: A hitless wavelength selective optical device includes a first thermo-optic switch (TOS), a second TOS, a first waveguide, a second waveguide, a third waveguide, a heating element and a control unit. The first TOS includes receives a wavelength division multiplexed (WDM) signal at a first port of the first TOS. The second TOS provides at least one channel of the WDM signal at a first port of the second TOS. The first waveguide is coupled between second ports of the first and second TOS. The second waveguide includes a tunable filter that reflects a selected channel from the received WDM signal and coupled between the third ports of the first and second TOS.

    Abstract translation: 无击穿波长选择光学器件包括第一热电开关（TOS），第二TOS，第一波导，第二波导，第三波导，加热元件和控制单元。 第一TOS包括在第一TOS的第一端口处接收波分复用（WDM）信号。 第二TOS在第二TOS的第一端口处提供WDM信号的至少一个信道。 第一波导耦合在第一和第二TOS的第二端口之间。 第二波导包括可调谐滤波器，其从所接收的WDM信号反射所选择的信道并耦合在第一和第二TOS的第三端口之间。

    Pi -Shifted filters based on electro-optically induced waveguide gratings
    165.
    发明申请
    Pi -Shifted filters based on electro-optically induced waveguide gratings 审中-公开
    基于电光感应波导光栅的Pi-Shifted滤波器

    公开(公告)号：US20030235368A1

    公开(公告)日：2003-12-25

    申请号：US10454760

    申请日：2003-06-03

    Applicant: ADTEK PHOTOMASK INC.; and ,  Mykola KULISHOV

    Inventor： Mykola Kulishov ,  Xavier Daxhelet

    IPC: G02B006/34

    CPC classification number: G02F1/035 ,  G02B6/02057 ,  G02B6/124 ,  G02F2201/307

    Abstract: Disclosed is a null-shifted optical grating device based on electro-optically induced waveguide gratings. The waveguide has a core and a cladding where the core or the cladding is made of an electro-optic material. A plurality of electrodes are placed on one side of the waveguide and at least one electrode is placed on the other side of the waveguide. A voltage pattern is selectively applied to the electrode so that the pattern induces at least one null-shifted grating in the waveguide when the pattern is applied.

    Abstract translation: 公开了一种基于电光感应波导光栅的pi移位光栅装置。 波导具有芯和包层，其中芯或包层由电光材料制成。 多个电极放置在波导的一侧，并且至少一个电极放置在波导的另一侧。 电压图案被选择性地施加到电极，使得当施加图案时，图案在波导中诱导至少一个pi移位的光栅。

    Multi-functional optical switch (optical wavelength division multiplexer/demultiplexer, add-drop multiplexer and inter-connect device) and its methods of manufacture
    166.
    发明授权
    Multi-functional optical switch (optical wavelength division multiplexer/demultiplexer, add-drop multiplexer and inter-connect device) and its methods of manufacture 有权
    多功能光开关（光波分复用器/解复用器，分插复用器和互连设备）及其制造方法

    公开(公告)号：US06661942B1

    公开(公告)日：2003-12-09

    申请号：US09357201

    申请日：1999-07-20

    Applicant: Alireza Gharavi

    Inventor： Alireza Gharavi

    IPC: G02B600

    CPC classification number: G02B6/1221 ,  G02B6/12007 ,  G02B6/138 ,  G02B2006/12107 ,  G02F1/011 ,  G02F1/065 ,  G02F1/313 ,  G02F2201/307 ,  G02F2203/585 ,  H04J14/0212

    Abstract: The invention provides a multifunctional optical switch that among other things, optionally can function as an optical wavelength division multiplexer, wavelength division demultiplexer, add-drop multiplexer and/or inter-connect device. The invention further provides novel methods of manufacturing the optical switch. The optical switch can comprise a single layer, and optimally includes of a plurality of layers which each comprise an optical nonlinear second-order polymer. The optical nonlinear second-order polymer present in each layer differs from that present in any other layer in terms of its absorption maximum (i.e., due to possession of different chromophores).

    Abstract translation: 本发明提供了一种多功能光开关，其中可选地可以用作光波分复用器，波分解复用器，分插复用器和/或互连装置。 本发明还提供了制造光开关的新颖方法。 光学开关可以包括单层，并且最佳地包括多个层，每层包括光学非线性二阶聚合物。 存在于各层中的光学非线性二阶聚合物与其吸收最大值（即，由于具有不同的发色团）而言，与任何其它层中存在的光学非线性二阶聚合物不同。

    Tunable filter
    167.
    发明授权
    Tunable filter 有权
    可调滤波器

    公开(公告)号：US06650810B1

    公开(公告)日：2003-11-18

    申请号：US09639063

    申请日：2000-08-15

    Applicant: Robert A. Lieberman ,  John D Prohaska ,  Lothar U Kempen

    Inventor： Robert A. Lieberman ,  John D Prohaska ,  Lothar U Kempen

    IPC: G02B634

    CPC classification number: G01J3/457 ,  G01J3/18 ,  G01J3/1895 ,  G01J3/4338 ,  G02B6/02133 ,  G02B6/02138 ,  G02B6/022 ,  G02B6/124 ,  G02F1/0115 ,  G02F2201/307

    Abstract: A tunable optical filter for simulating the waveband spectrums of selected substances. The filter includes an optical waveguide with a core material for transmitting light energy and a nominal core refractive index for the core material. Predetermined periodic variations are formed in the core material of the optical waveguide between the input and output ends that alter the core refractive index of the waveguide at the location of the periodic variations. Depending upon the periodic variations, the waveguide produces a predetermined reference waveband spectrum output that matches the waveband spectrum of a selected substance. A modulator is coupled to the waveguide to selectively modulate the periodic variations to intermittently shift the reference waveband spectrum output to fine tune the filter and reduce signal noise. The filter is useful as a reference cell for correlation spectroscopy, DIAL LIDAR, equipment calibration, and other uses where a predetermined or known waveband spectrum is useful or desirable.

    Abstract translation: 一种用于模拟所选物质的波段频谱的可调光滤波器。 滤波器包括具有用于透射光能的芯材料和用于芯材料的标称芯折射率的光波导。 在输入和输出端之间的光波导的芯材中形成预定的周期性变化，其改变在周期性变化的位置处的波导的纤芯折射率。 根据周期性变化，波导产生与选定物质的波段频谱相匹配的预定参考波段频谱输出。 调制器耦合到波导以选择性地调制周期性变化，以间歇地移动参考波段频谱输出以微调滤波器并降低信号噪声。 滤波器可用作相关光谱参考单元，DIAL LIDAR，设备校准以及预定或已知波段频谱是有用或期望的其它用途。

    Method and apparatus for electro-optic delay generation of optical signals
    168.
    发明授权
    Method and apparatus for electro-optic delay generation of optical signals 失效

    公开(公告)号：US06640020B2

    公开(公告)日：2003-10-28

    申请号：US10223848

    申请日：2002-08-19

    Applicant: Stanislav I. Ionov

    Inventor： Stanislav I. Ionov

    IPC: G02F1295

    CPC classification number: G02F1/011 ,  G02F2201/20 ,  G02F2201/307 ,  H01S3/0057

    Abstract: An optical delay generator includes a waveguide made from electro-optically active material which contains a chirped distributed Bragg reflector. An electric field generated across the waveguide causes the index of refraction within the waveguide to change. A change in the index of refraction results in a change in the point at which light is reflected from the chirped distributed Bragg reflector within the waveguide, thus providing a controllable delay for optical pulses. Optical pulse position modulation is provided by using the optical delay generator to control the delay imparted on each pulse within a stream of equally-spaced optical pulses.

    Variable dispersion compensator and substrate for the same
    169.
    发明申请
    Variable dispersion compensator and substrate for the same 审中-公开
    可变色散补偿器和衬底相同

    公开(公告)号：US20030123800A1

    公开(公告)日：2003-07-03

    申请号：US10171749

    申请日：2002-06-17

    Inventor： Minoru Hashimoto ,  Kiichi Yoshiara ,  Takuya Ohhira ,  Sadayuki Matsumoto ,  Eiichi Sakurai ,  Takashi Hashimoto

    IPC: G02B006/26 ,  G02B006/34

    CPC classification number: G02B6/02085 ,  G02B6/02204 ,  G02B6/29394 ,  G02B6/29395 ,  G02F1/0115 ,  G02F1/0147 ,  G02F2201/307 ,  H04B10/2519

    Abstract: An optical dispersion compensator comprises a heater unit for heating a fiber grating, a heater controller and a Peltier controller. The fiber grating heater unit includes heater elements formed in line on a quartz substrate and a fiber grating arranged on the heater elements. The fiber grating is secured on the quartz substrate using a cap. A step is formed in the quartz substrate to position the cap relative to the heater elements. The fiber grating is inserted into a groove in the cap to position the fiber grating relative to the heater elements.

    Abstract translation: 光学色散补偿器包括用于加热光纤光栅的加热器单元，加热器控制器和珀耳帖控制器。 光纤光栅加热器单元包括在石英基板上成直线形成的加热元件和布置在加热元件上的光纤光栅。 光纤光栅使用盖子固定在石英基板上。 在石英基板中形成台阶以相对于加热元件定位盖。 将光纤光栅插入到盖中的凹槽中，以相对于加热器元件定位光纤光栅。

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