世界著名光纤通信美籍专家厉鼎毅先生(AT&T)、林清隆先生(Bellcore)于1993年10月26～27日来武汉邮电科学研究院讲学。两位学者介绍了当前国际光纤通信的发展趋势,对我们发展国内光纤通信的战略方面起重要作用,明确了许多问题,具体如下: 1.今后将以1550nm窗口为主应用并大量采用掺铒光纤放大器(EDFA)。2.在2.5Gbit/s系统,中继距离50km以上,用色散位移光纤(DSF),可以不必用EDFA。 The world famous experts in optical fiber communications, Mr. Li Dingli and Mr. Bellcore, gave lectures at the Wuhan Institute of Posts and Telecommunications on October 26-27, 1993. The two scholars introduced the current development trend of international optical fiber communications and played an important role in developing the strategic aspect of domestic optical fiber communication. Many problems were clarified as follows: 1. In the future, the 1550nm-based window will be mainly used and a large number of erbium-doped optical fibers Amplifier (EDFA). 2. 2.5Gbit / s system, the relay distance of more than 50km, with dispersion shifted fiber (DSF), you can not have to use EDFA.