给出了SMF-28 ULL超低损耗光纤的特点,列出了其与普通G.652光纤相关参数的对比;介绍了利用SMF-28 ULL超低损耗光纤进行超长距离传输试验的情况,并对试验结果进行了讨论。
It gives the characteristics of the optical fiber with very low loss,compares its parameters with common G.652 optical fiber,describes the ultra-long distance transmission test with SMF-28 ULL optical fiber with very low loss,and discusses the test results.