【摘要】 详细介绍了一种测量光波导传输损耗的匹配液测量法。通过将波导插入折射率高于波导芯层的液体将光线耦合出波导,获得波导传输线上各点实际通过的光强,拟合出光强传输衰减曲线。与传统测量方法相比,本方法可对波导进行重复性测量,尤其适用于传输损耗低于0.1 dB/cm光波导的测量。更多还原

【Abstract】 A new method for measurement of propagation loss optical wave-guide is particularly introduced,which is called matching liquid measurement.By inserting the waveguide into the matching liquid,whose refractive index is higher than the one of waveguide,the radiation intensity along the waveguide is obtained.The attenuate curve can be imitated.Compared with the traditional method,this method can be used to measure the waveguide repeatedly,especially for the measurment of optical waveguide whose propagation loss is lower than 0.1 dB/cm.更多还原