【摘要】 本文介绍对ＭＥ９９Ｃ如何进行改进并用来准确测量大ＮＡ６２．５／１２５多模光纤８５０ｎｍ和１３００ｎｍ双波长带宽的过程，实验中以ＰＫ２５００的测试结果作参考，讨论了注入条件对多模光纤带宽测量的影响，并对实验中的几种现象进行了分析。更多还原

【Abstract】 It is introduced that how to improve the ME99C to accurately measure the bandwidth of large NA multimode fibers at 850nm & 1300nm wavelength. Comparing to the measurement results of PK2500, we discussed the influence of the launch condition to the measurement of multimode fibers bandwidth. Finely, several phenomenon in the experement are analyzed.更多还原