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    • 2. 发明申请
    • TOTAL REFLECTION TYPE OPTICAL SWITCH USING POLYMER INSERTION TYPE SILICA OPTICAL WAVEGUIDE AND MANUFACTURING METHOD THEREOF
    • 使用聚合物插入型二氧化硅光波导的总反射型光开关及其制造方法
    • US20130223793A1
    • 2013-08-29
    • US13882620
    • 2011-10-25
    • Young Sic KimJang-Uk ShinHyung-Myung MoonJin-Bong Kim
    • Young Sic KimJang-Uk ShinHyung-Myung MoonJin-Bong Kim
    • G02B6/35H01L21/02
    • G02B6/35G02B6/3522G02B6/3548G02B6/3576G02B6/3596G02F1/0147G02F1/065G02F1/3137G02F1/3138G02F1/315G02F2001/0154H01L21/02
    • The present invention relates to a total reflection type optical switch using polymer insertion type silica optical waveguides and a manufacturing method thereof. The total reflection type optical switch forms a trench in an intersecting point of the silica optical waveguides having two optic routes, and inserts a polymer into the trench. A total reflection type optical switch has a heater which heats the polymer. The polymer is made of thermo-optic material, and totally reflects an optical signal as a refraction index falls when heated by the heater. In addition, when not heated by the heater, the polymer transilluminates the optical signal. When the polymer is made of electric-optic material, the total reflection type optical switch may have upper and lower electrodes for applying an electric field in the polymer instead of the heater. In this case, the total reflection type optical switch is capable of high speed switching, and is not limited to usages of an optical switch, and may be used as a variable optical attenuator by adjusting the voltage and current being applied. According to the present invention, it is possible to use the difference of the refraction indexes of the silica optical waveguides and the polymer due to temperature changes to transilluminate or totally reflect an optical signal according to changes of the refraction index of the polymer, thereby improving loss characteristics of the optical signal.
    • 本发明涉及使用聚合物插入型二氧化硅光波导的全反射型光开关及其制造方法。 全反射型光开关在具有两条光路的二氧化硅光波导的交叉点形成沟槽,并将聚合物插入到沟槽中。 全反射型光开关具有加热聚合物的加热器。 聚合物由热光材料制成,当加热器加热时折射率下降时,全反射光信号。 另外,当加热器不加热时,聚合物透射光信号。 当聚合物由电光材料制成时,全反射型光开关可以具有用于在聚合物中施加电场而不是加热器的上电极和下电极。 在这种情况下,全反射型光开关能够进行高速切换,不限于光开关的用途,也可以通过调整施加的电压和电流而用作可变光衰减器。 根据本发明,可以根据聚合物的折射率的变化,使用二氧化硅光波导和聚合物由于温度变化而导致的透光率差异,从而透射或全反射光信号,从而改善 光信号的损耗特性。
    • 3. 发明授权
    • Method of detecting partial discharge using frequency spectrum analyzer
    • 使用频谱分析仪检测局部放电的方法
    • US5642038A
    • 1997-06-24
    • US573418
    • 1995-12-15
    • Taek-Soo KimMyong-Soo ParkYong-Joo KimJin-Bong KimDon-Ha Hwang
    • Taek-Soo KimMyong-Soo ParkYong-Joo KimJin-Bong KimDon-Ha Hwang
    • G01R31/02G01R29/00G01R31/12G01R19/00
    • G01R31/12
    • A method of detecting a partial discharge signals occurring at an insulator, using a Frequency Spectrum Analyzer (FSA) with a monitor screen. The method including the steps of setting a horizontal axis of the monitor screen as a time axis and a vertical axis as an axis representing a voltage magnitude; receiving a power frequency signal having phase angle and carrying the partial discharge signals derived from the insulator being tested, to display the magnitudes of the partial discharge signals based on the time axis; detecting each of the maximum value of the partial discharge signals being displayed by the receiving step, to cause them to be evaluated into coordinate values of the horizontal axis and the vertical axis discriminating each of the phase angles of the power frequency signal based on the coordinate value of the horizontal axis detected by the detecting step, and evaluating each of the magnitudes of the partial discharge signals positioned at respective phase angles of the power frequency signal based on the coordinate value of the vertical axis; and overlapping each the phase angle of the partial discharge signals positioned at the respective phase angles evaluated by the discriminating step with each other according to corresponding phase angles, and comparing them relative to each other, such that the magnitude and number of the partial discharge signals appearing at the respective phase angles of the power frequency signal can be evaluated.
    • 使用具有监视器屏幕的频谱分析仪(FSA)来检测在绝缘体处发生的局部放电信号的方法。 该方法包括以下步骤:将监视器画面的水平轴设置为时间轴,将垂直轴设置为表示电压大小的轴; 接收具有相位角的电力频率信号并承载从被测绝缘体导出的局部放电信号,以基于时间轴显示局部放电信号的幅度; 检测由接收步骤显示的局部放电信号的最大值中的每一个,以使它们被评估为基于坐标的电力频率信号的每个相位角的水平轴和垂直轴的坐标值 由所述检测步骤检测的水平轴的值,并且基于所述垂直轴的坐标值来评估位于所述功率频率信号的各个相位角的所述局部放电信号的大小; 并且根据相应的相位角将位于由识别步骤评估的各个相位角的局部放电信号的相位角重叠,并将它们相对于彼此进行比较,使得局部放电信号的幅度和数量 可以评估在电力频率信号的各个相位角处的出现。
    • 4. 发明授权
    • Total reflection type optical switch using polymer insertion type silica optical waveguide and manufacturing method thereof
    • 使用聚合物插入型二氧化硅光波导的全反射型光开关及其制造方法
    • US09207403B2
    • 2015-12-08
    • US13882620
    • 2011-10-25
    • Young Sic KimJang-Uk ShinHyung-Myung MoonJin-Bong Kim
    • Young Sic KimJang-Uk ShinHyung-Myung MoonJin-Bong Kim
    • G02B6/35G02F1/295G02F1/313G02F1/315G02F1/01H01L21/02G02F1/015
    • G02B6/35G02B6/3522G02B6/3548G02B6/3576G02B6/3596G02F1/0147G02F1/065G02F1/3137G02F1/3138G02F1/315G02F2001/0154H01L21/02
    • The present invention relates to a total reflection type optical switch using polymer insertion type silica optical waveguides and a manufacturing method thereof. The total reflection type optical switch forms a trench in an intersecting point of the silica optical waveguides having two optic routes, and inserts a polymer into the trench. A total reflection type optical switch has a heater which heats the polymer. The polymer is made of thermo-optic material, and totally reflects an optical signal as a refraction index falls when heated by the heater. In addition, when not heated by the heater, the polymer transilluminates the optical signal. When the polymer is made of electric-optic material, the total reflection type optical switch may have upper and lower electrodes for applying an electric field in the polymer instead of the heater. In this case, the total reflection type optical switch is capable of high speed switching, and is not limited to usages of an optical switch, and may be used as a variable optical attenuator by adjusting the voltage and current being applied. According to the present invention, it is possible to use the difference of the refraction indexes of the silica optical waveguides and the polymer due to temperature changes to transilluminate or totally reflect an optical signal according to changes of the refraction index of the polymer, thereby improving loss characteristics of the optical signal.
    • 本发明涉及使用聚合物插入型二氧化硅光波导的全反射型光开关及其制造方法。 全反射型光开关在具有两条光路的二氧化硅光波导的交叉点形成沟槽,并将聚合物插入到沟槽中。 全反射型光开关具有加热聚合物的加热器。 聚合物由热光材料制成,当加热器加热时折射率下降时,全反射光信号。 另外,当加热器不加热时,聚合物透射光信号。 当聚合物由电光材料制成时,全反射型光开关可以具有用于在聚合物中施加电场而不是加热器的上电极和下电极。 在这种情况下,全反射型光开关能够进行高速切换,不限于光开关的用途,也可以通过调整施加的电压和电流而用作可变光衰减器。 根据本发明,可以根据聚合物的折射率的变化,使用二氧化硅光波导和聚合物由于温度变化而导致的透光率差异,从而透射或全反射光信号,从而改善 光信号的损耗特性。