When beams of light pass through a fiber optic cable, they tend to degrade.

当光束通过光纤，光强度趋于降低。

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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。

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On the other hand, fiber transmission remedy the lacks of cable transmission. Fiber system can resist electromagnetism interference but light module is easier to be affected by temperature.

与之相对应，如果采用光纤传输波控信号，就很好的弥补了电缆传输的不足，系统抗电磁干扰的能力大大提高。

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Implicit in this vision is the Utopian fantasy that underlies most high-tech futurism: once Africa puts this infrastructure in place, all of its problems--tribalism, racism, poverty and disease--will disappear in the purifying light of a fiber optic cable.

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When a pulse of light is sent into the tumor using fiber optic cable that is threaded into a tumor using a biopsy needle, the molecule absorbs the light energy, converts it electrical energy that then causes tumor cells to self destruct.

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