【摘要】 在光纤衰减的测量中,背向散射法显示出很大的优越性。本文提出在光路中使用定向耦合器(Y—分支)的方法,是国内首次利用。本法使具体实施测量技术简单化,因此具有一定的经济价值。本文对实验结果进行了误差分析,据此提出进一步完善本测量方法的途径。更多还原

【Abstract】 In the measurement of optical fiber attenuation, the backscattering method has been shown to have great advantages. This study makes the first use of directional coupler (y-branch) in our country. It can simplify the measuring technique; hence this is a more economical method. This paper carries out error analysis on the results of experiments and proposes a way to improve the level of accuracy in measuring optical fiber attenuation.更多还原