七六年的导光纤维通信技术 76年一月,贝尔电话研究所开始将导光纤维技术应用于一条实验性电话线路中,并进行了演示。这次试验不仅表明导光纤维系统确实可成功地用于现有电话设备,而且也证明有可能大量生产由144根纤维组成的光缆。制造时,纤维不必单独处理,就能把很多纤维捻接在一起。这种光缆的直径只有半吋,它能同时接通50,000条话路。 76 years of optical fiber communication technology In January 76, the Bell Telephone Institute began to apply optical fiber technology to an experimental telephone line and demonstrated it. This trial not only shows that fiber optic systems are indeed successfully used in existing telephony equipment, but also that it is possible to mass produce fiber optic cables consisting of 144 fibers. When manufactured, fibers can be spliced ​​together without having to be handled separately. This optical cable is only half an inch in diameter, it can switch on 50,000 sessions at the same time.