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    • 1. 发明授权
    • Three dimensional thermo-electro-mechanical device for controlling light propagation in an optical guide
    • 用于控制光导中的光传播的三维热电机械装置
    • US07079747B1
    • 2006-07-18
    • US11060404
    • 2005-02-18
    • Bertrand GagnonTigran GalstianAmir TorkArmen ZohrabyanDany DumontRouslan BirabassovRichard Peter Glynn Jewell
    • Bertrand GagnonTigran GalstianAmir TorkArmen ZohrabyanDany DumontRouslan BirabassovRichard Peter Glynn Jewell
    • G02B6/00
    • G02F1/065G02B6/02204G02B6/266G02F1/0147G02F2203/48
    • A variable optical attenuator comprises a portion of a waveguide through which optical energy can propagate having a side surface through which optical energy can be extracted; a layer of thermo sensitive material having controllable optical properties, covering the side surface of the portion; a helicoidal heating element wrapped around the waveguide and covering at least the layer. The helicoidal heating element can be used to control the optical properties of the material by inducing a thermal transfer profile on the material using the heat dissipation of the heater through the material; wherein a wave propagation in the waveguide is influenced by the optical properties of the material controlled by the heating element. The heating element can also have a measurable temperature coefficient; a controller for controlling the temperature of the heating element as a function of the temperature coefficient; wherein the temperature of the heating element can be controlled without using an additional temperature probe. And the heating element can also be used to control the curing of the material using the heat dissipation of the heater through the material, thereby providing a mechanical armature for the material and the waveguide; wherein the mechanical armature solidifies the attenuator.
    • 可变光衰减器包括波导的一部分,光能通过该部分可以传播,具有侧表面,通过该侧表面可以提取光能; 具有可控光学性质的热敏材料层,覆盖该部分的侧表面; 围绕波导缠绕的螺旋形加热元件并且至少覆盖该层。 螺旋加热元件可用于通过使用加热器通过材料的散热在材料上引起热转印轮廓来控制材料的光学性质; 其中波导中的波传播受到由加热元件控制的材料的光学特性的影响。 加热元件也可以具有可测量的温度系数; 控制器,用于根据温度系数控制加热元件的温度; 其中可以在不使用附加温度探针的情况下控制加热元件的温度。 并且加热元件也可用于通过加热器通过材料的散热来控制材料的固化,从而为材料和波导提供机械衔铁; 其中所述机械衔铁固化所述衰减器。