Method for manipulating optical energy using poled structure
    21.
    发明授权
    Method for manipulating optical energy using poled structure 失效
    使用极化结构来操纵光能的方法

    公开(公告)号:US5703710A

    公开(公告)日:1997-12-30

    申请号:US304042

    申请日:1994-09-09

    摘要: Method for optical energy transfer and energy guidance uses an electric field to control energy propagation using a class of poled structures in solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields are applied to the poled structures to control routing of optical energy. Techniques include frequency-selective switchable- and adjustable-tunable reflection, splitting, directional coupling, frequency-tunable switching and efficient beam combining, as well as polarized beam combining. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field. In one embodiment, the present invention is a method of switching a grating which consists of a poled material with an alternating domain structure of specific period. When an electric field is applied across the periodic structure, a Bragg grating is formed by the electro-optic effect, reflecting optical radiation with a certain bandwidth around a center wavelength. The grating may be used by itself, or in combination with other gratings to form integrated structures in a ferroelectric crystal. Specifically of interest is an method of using an integrated structure in which one or more optical waveguides interact with one or more periodic structures to form a wavelength selective integrated optic modulator, switch, or feedback element.

    摘要翻译: 光能转移和能量引导的方法使用电场来控制能量传播,使用固体材料中的一类极化结构。 可以形成薄膜或体积构造的光栅的极化结构可以与波导结构组合。 电场施加到极化结构以控制光能的路由。 技术包括频率选择性可切换和可调谐可调谐反射,分离,定向耦合,频率可调切换和有效的光束组合,以及偏振光束组合。 可调节的可调性通过极化结构获得,该极化结构在存在可变电场的情况下沿轴产生可变折射率的空间梯度。 在一个实施例中,本发明是一种切换由具有特定周期的交替畴结构的极化材料组成的光栅的方法。 当跨周期结构施加电场时,通过电光效应形成布拉格光栅,以围绕中心波长的一定带宽反射光辐射。 光栅可以自身使用,也可以与其他光栅组合使用,以在铁电晶体中形成集成结构。 特别感兴趣的是使用其中一个或多个光波导与一个或多个周期性结构相互作用以形成波长选择性集成光学调制器,开关或反馈元件的集成结构的方法。

    Polarized frequency-selective optical source
    22.
    发明授权
    Polarized frequency-selective optical source 失效
    极化频率选择光源

    公开(公告)号:US5499256A

    公开(公告)日:1996-03-12

    申请号:US388318

    申请日:1995-02-14

    摘要: A laser cavity configuration employs polarization switching to obtain a high output power in a single transverse spatial mode from an integrated external cavity diode laser device. The structure provides stabilization and rapid tuning of the frequency of the diode laser. An advantage is that an integrated structure provides output of the laser in a waveguide with the correct polarization for subsequent applications while supporting optimal polarization in a solid state active medium. The external cavity diode laser according to the invention is consistent with a planar manufacturing process such that high volume, low cost products can be achieved.

    摘要翻译: 激光腔配置采用偏振切换,从集成的外腔二极管激光器装置获得单一横向空间模式的高输出功率。 该结构提供二极管激光器的频率的稳定和快速调谐。 优点在于,集成的结构为波导中的激光输出提供正确的极化,用于随后的应用,同时支持固体活性介质中的最佳极化。 根据本发明的外腔二极管激光器与平面制造工艺一致,使得可以实现高容量,低成本的产品。

    Method for controllable optical power splitting
    23.
    发明授权
    Method for controllable optical power splitting 失效
    可控光功率分割方法

    公开(公告)号:US5488681A

    公开(公告)日:1996-01-30

    申请号:US303992

    申请日:1994-09-09

    IPC分类号: G02F1/295 G02B6/36

    CPC分类号: G02F1/2955

    摘要: A method for operation of a new class of optical energy transfer devices and energy guiding devices uses an electric field to control energy propagation using a class of poled structures in solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields applied to the poled structures control routing of optical energy. Devices include splitters, parallel and Y couplers, mode converters and energy leakage attenuators.

    摘要翻译: 用于操作新类型的光能传递装置和能量引导装置的方法使用电场来控制能量传播,使用固体材料中的一类极化结构。 可以形成薄膜或体积构造的光栅的极化结构可以与波导结构组合。 施加到极化结构的电场控制光能的路由。 器件包括分离器,并联和Y耦合器,模式转换器和能量泄漏衰减器。

    Thermo-optic switch having fast rise-time
    24.
    发明授权
    Thermo-optic switch having fast rise-time 有权
    热电开关具有快速上升时间

    公开(公告)号:US07171064B2

    公开(公告)日:2007-01-30

    申请号:US10429480

    申请日:2003-05-05

    IPC分类号: G02F1/295 G02B6/26 G02B6/42

    摘要: A thermo-optic switch is operated in a novel near-impulse mode in which the drive pulse width is shorter than twice the diffusion time of the switch. The drive pulse width is less than the rise time of the steady-state optical response and also less than the rise time of the deflection efficiency response to the applied drive pulse. The drive pulse can further include a sustaining segment following the initial short pulse segment, if it is desired to maintain the switch in an ON state for a longer period of time. A number of additional techniques are described for further reducing the response time of the switch. An array of thermo-optic switches operated in this manner can form a display which, due to the fast individual switch rise times, can operate at an overall fast refresh rate.

    摘要翻译: 热电开关以新颖的近脉冲模式工作,其中驱动脉冲宽度短于开关扩散时间的两倍。 驱动脉冲宽度小于稳态光响应的上升时间,也小于对所施加的驱动脉冲的偏转效率响应的上升时间。 如果希望将开关保持在接通状态较长的时间段,则驱动脉冲还可以包括跟随初始短脉冲段的维持段。 描述了一些额外的技术来进一步减少开关的响应时间。 以这种方式操作的一组热电开关可以形成显示器,由于快速的单独开关上升时间,可以以整体快速刷新率进行操作。

    Thermo-optic switch having fast rise-time
    25.
    发明授权
    Thermo-optic switch having fast rise-time 失效
    热电开关具有快速上升时间

    公开(公告)号:US06351578B1

    公开(公告)日:2002-02-26

    申请号:US09369900

    申请日:1999-08-06

    IPC分类号: G02B626

    摘要: A thermo-optic switch is operated in a novel near-impulse mode in which the drive pulse width is shorter than twice the diffusion time of the switch. The drive pulse width is less than the rise time of the steady-state optical response and also less than the rise time of the deflection efficiency response to the applied drive pulse. The drive pulse can further include a sustaining segment following the initial short pulse segment, if it is desired to maintain the switch in an ON state for a longer period of time. A number of additional techniques are described for further reducing the response time of the switch. An array of thermo-optic switches operated in this manner can form a display which, due to the fast individual switch rise times, can operate at an overall fast refresh rate.

    摘要翻译: 热电开关以新颖的近脉冲模式工作,其中驱动脉冲宽度短于开关扩散时间的两倍。 驱动脉冲宽度小于稳态光响应的上升时间,也小于对所施加的驱动脉冲的偏转效率响应的上升时间。 如果希望将开关保持在接通状态较长的时间段,则驱动脉冲还可以包括跟随初始短脉冲段的维持段。 描述了一些额外的技术来进一步减少开关的响应时间。 以这种方式操作的一组热电开关可以形成显示器,由于快速的单独开关上升时间,可以以整体快速刷新率进行操作。

    Method for manipulating optical energy using poled structure
    28.
    发明授权
    Method for manipulating optical energy using poled structure 失效
    使用极化结构来操纵光能的方法

    公开(公告)号:US5852688A

    公开(公告)日:1998-12-22

    申请号:US904198

    申请日:1997-07-31

    摘要: Method for optical energy transfer and energy guidance uses an electric field to control energy propagation using a class of poled structures in solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields are applied to the poled structures to control routing of optical energy. Techniques include frequency-selective switchable- and adjustable-tunable reflection, splitting, directional coupling, frequency-tunable switching and efficient beam combining, as well as polarized beam combining. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field. In one embodiment, the present invention is a method of switching a grating which consists of a poled material with an alternating domain structure of specific period. When an electric field is applied across the periodic structure, a Bragg grating is formed by the electro-optic effect, reflecting optical radiation with a certain bandwidth around a center wavelength. The grating may be used by itself, or in combination with other gratings to form integrated structures in a ferroelectric crystal. Specifically of interest is an method of using an integrated structure in which one or more optical waveguides interact with one or more periodic structures to form a wavelength selective integrated optic modulator, switch, or feedback element.

    摘要翻译: 光能转移和能量引导的方法使用电场来控制能量传播,使用固体材料中的一类极化结构。 可以形成薄膜或体积构造的光栅的极化结构可以与波导结构组合。 电场施加到极化结构以控制光能的路由。 技术包括频率选择性可切换和可调谐可调谐反射,分离,定向耦合,频率可调切换和有效的光束组合,以及偏振光束组合。 可调节的可调性通过极化结构获得,该极化结构在存在可变电场的情况下沿轴产生可变折射率的空间梯度。 在一个实施例中,本发明是一种切换由具有特定周期的交替畴结构的极化材料组成的光栅的方法。 当跨周期结构施加电场时,通过电光效应形成布拉格光栅,以围绕中心波长的一定带宽反射光辐射。 光栅可以自身使用,也可以与其他光栅组合使用,以在铁电晶体中形成集成结构。 特别感兴趣的是使用其中一个或多个光波导与一个或多个周期性结构相互作用以形成波长选择性集成光学调制器,开关或反馈元件的集成结构的方法。