In this paper, a high-sensitivity lightwave communication system is set up by using a mini-power near-infrared LED as a light emitter, a phototransistor as a photoelectricreceiver.
本文采用小功率红外发光管作光源，用光敏二级管作光接收器件，建立了高灵敏度的光波通信系统。
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In intensity-modulated type optic fiber sensors, luminous intensity of a light source and operating stability of photoelectricreceiver are the key factors for determining measuring accuracy.