Based on Finel formulas, the efficiency of the coupling of light source With light fiber or light cable entered from a light source was estimated.
本文从菲涅尔公式出发，估算了从光源系统中发出的光进入光纤或光缆的耦合效率。
2
The simulation results show that the optical couplingefficiency is determined by fiber position, the lens design of the photodiode chips, and the shape of the light source.
模拟结果显示，耦合效率的大小由光纤位置、芯片透镜尺寸和激光光源光斑形状共同决定。
3
The traditional PZT, however, is not the ultrasonic source with high efficiency because of the serious non-coupling phenomena between air and ordinary piezoelectric material.