The principle and characteristic of excited light source, interference optical filter, transmission optical fiber and optical detector are discussed.
论述激发光源、干涉滤光片、传输光纤、光探测器的原理及特性。
In the receiving system, the narrow-band interference filter is introduced in order to reduce the background light, increase the signal transmission rate, and improve the signal-to-noise ratio.
在接收系统中，引进窄带干涉滤光片，减少背景光的干扰，增加信号光透射率，改善信噪比。
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