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我们开展了单模光纤二次被覆和成缆工艺的研究,用国产单模光纤试制了我国第一根六芯单模光缆。光缆长度为1km,在1.30和1.55 μm处的平均损耗分别为0.67和0.44dB/km,最小损耗分别为0.51和0.32 dB/km。由二次被覆和成缆引起的附加损耗相当小。
We carried out a single-mode optical fiber secondary coating and cable into the process of research, using the domestic single-mode optical fiber trial of China’s first six-core single-mode optical cable. The cable length is 1km, with average losses of 0.67 and 0.44 dB / km at 1.30 and 1.55 μm, respectively, with minimum losses of 0.51 and 0.32 dB / km, respectively. The additional loss caused by secondary coating and cabling is quite small.