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    • 3. 发明申请
    • THERMAL CONTROL OF OPTICAL COMPONENTS
    • 光学元件的热控制
    • US20090087138A1
    • 2009-04-02
    • US12241860
    • 2008-09-30
    • Ming YanAnthony J. TicknorCalvin HoHao XUJason WeaverThomas S. TarterJane Lam
    • Ming YanAnthony J. TicknorCalvin HoHao XUJason WeaverThomas S. TarterJane Lam
    • G02B6/12
    • G02B6/12026G01J3/0286G02B6/12011
    • A linearized thermal and optical model of an optical integrated circuit can be used to temperature-stabilize one or more optical elements of the circuit using active temperature regulation. To stabilize a single optical element, a temperature sensor and a heater can be provided proximate to the grating. Thermal and optical coefficients can be then used to select an appropriate temperature set-point for the temperature controller that receives readings from the sensor and determines the power dissipated in the heater. Multiple optical elements can be stabilized individually, using the same process and lumping cross-heating factors together with other environmental factors. Alternatively, multiple AWG's can be stabilized using fewer sensors than optical elements, by stabilizing one of the optical elements in the same manner as in the case of a single optical elements, and determining power dissipated in the heaters of the remaining optical elements based on the linearized model.
    • 可以使用光学集成电路的线性化热和光学模型来使用主动温度调节来温度稳定电路的一个或多个光学元件。 为了稳定单个光学元件,可以在光栅附近提供温度传感器和加热器。 然后可以使用热系数和光学系数为温度控制器选择适当的温度设定点,该温度控制器从传感器接收读数并确定加热器中消耗的功率。 多个光学元件可以单独稳定,使用相同的工艺并将交叉加热因子与其他环境因素结合在一起。 或者,通过以与单个光学元件的情况相同的方式来稳定光学元件之一,可以使用比光学元件少的传感器来稳定多个AWG,并且基于所述光学元件的剩余光学元件的加热器确定功率消耗 线性化模型。
    • 5. 发明授权
    • Optical method for altering molecular alignment in selected regions of a
non-linear optical polymeric structure
    • 用于改变非线性光学聚合物结构的选定区域中的分子取向的光学方法
    • US5100589A
    • 1992-03-31
    • US445526
    • 1989-12-04
    • Anthony J. Ticknor
    • Anthony J. Ticknor
    • G02B6/13G02F1/065
    • G02B6/13G02F1/065
    • A channel waveguide is integrally formed within a structure made of a non-linear optical polymer by focussing a beam of optical radiation into a specified region within the structure where the channel waveguide is to be located. The focussed beam of optical radiation raises the temperature of the polymer in the specified region to above the glass-transition temperature for the polymer. A poling electric field is applied to the structure to cause molecular alignment of the polymer to occur in the specified region of the structure. Then the beam of optical radiation is removed while the poling electric field is maintained, thereby maintaining molecular alignment of the polymer in the specified region as the temperature of the specified region falls below the glass-transition temperature. A change in index of refraction of the polymer in the specified region of the structure due to the molecular alignment of the polymer in the specified region enables the specified region to function as a channel waveguide.
    • 在由非线性光学聚合物制成的结构中,通过将光辐射束聚焦到通道波导位于的结构内的特定区域中,将通道波导整体形成。 聚焦光束的光辐射将聚合物在特定区域的温度提高到高于聚合物的玻璃化转变温度。 对该结构施加极化电场,使得聚合物在结构的特定区域中发生分子取向。 然后在保持极化电场的同时除去光辐射束,由此当特定区域的温度降至玻璃化转变温度以下时,保持聚合物在指定区域内的分子取向。 由于特定区域中的聚合物的分子取向,聚合物在结构的指定区域中的折射率的变化使得特定区域能够用作通道波导。