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本文针对LTT(光直接触发晶闸管)光传输系统中光导管传输效率问题,用纤维光学理论分析了光缆的数值孔径、光导管的折射率一定时光导管的端面直径和曲率半径对光传输效率的影响,得出了光线在光导管中无损耗传输所必须满足的不等式,为光导管的设计提供了理论依据.
In this paper, the transmission efficiency of light pipe in LTT (Optical Thyristor) optical transmission system is analyzed. The fiber optic theory is used to analyze the numerical aperture of optical fiber cable. The refractive index of light pipe is affected by the end face diameter and radius of curvature of the light pipe. The inequalities which must be satisfied for the light to be transmitted without loss in the light pipe are obtained, which provides a theoretical basis for the design of the light pipe.