mode step meaning in English

模阶

Chapter 6 , the fully distributed temperature single mode step - index fiber optic sensor based on spontaneous raman optical frequency - domain reflectometry is developed
第六章，研究了基于自发raman散射的单模阶跃光纤的全分布式温度传感器系统。
With the advantages of high gain and output power , low noise , wide bandwidth as well as no relation with polarization , edfa changes the traditional optical - electrical - optical relay mode step by step in many fields , and becomes an indispensable device in modern optical communication systems . it saves the expensive cost in optical - electrical transition , makes equipment easy to operate and maintain
由于其本身具有高增益、高输出功率、低噪声、带宽宽、与偏振无关等优点,在很多领域和场合, edfa正逐步取代传统的光-电-光中继模式,省去光电/电光转换的昂贵成本,便于设备的运行维护,成为现代光纤通信系统中不可缺少的关键部件。