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邮电部武汉邮电科学研究院在单模光导纤维研制工作中突破了技术难关,取得了优异成绩,并拉制出一批光纤样品。光纤的有效截止波长为1.1—1.28μm;光纤衰减在1.3μm和1.55μm波长都降到1dB/km以下。直到1984年底,波长在1.3μm时,衰减达到0.8dB/km,在1.55μm时,衰减达到0.5dB/km。这一新进展为我国单模光纤通信研究工作创造了必要
Ministry of Posts and Telecommunications, Wuhan Institute of Posts and Telecommunications in the development of single-mode optical fiber broke through the technical difficulties, and achieved excellent results, and drawn a number of optical fiber samples. The effective cut-off wavelength of the optical fiber is 1.1-1.28μm; the attenuation of the optical fiber falls below 1dB / km at the wavelength of 1.3μm and 1.55μm. At the end of 1984, the attenuation reached 0.8 dB / km at a wavelength of 1.3 μm and reached 0.5 dB / km at 1.55 μm. This new progress has created the necessary work for the research of single-mode optical fiber communication in our country