High-Speed Protective Packaging of Fusion Splices Using an Internal Heat Source
スポンサーリンク
概要
- 論文の詳細を見る
Materials for a new reinforcement method using an internal heating technique have been developed experimentally for fusion splices. The method employs a protective package of a carbon-fiber composite and a hot-melt adhesive in a heat-shrinkable tube. The most appropriate heating current and heating time were determined from a consideration of the decomposition temperature of the adhesive (300℃) and the complete shrinking temperature (115℃) and the minimum welding temperature of Nylon 12 (about 180℃). The protective package can be installed in less than 30 seconds at a power of 10W. Air bubbles which might cause microbending were completely eliminated by using Nylon 12 as the hot-melt adhesive, irradiated polyethylene as the heat-shrinkable tube and a carbon-fiber-composite electrical heating rod which also acted a tension member. The key for preparing the carbon-fiber composite was to remove its impurities. Under the condition of temperature difference larger than 40 deg. between the shrinking temperature of the heat-shrinkable tube and the melting temperature of the hot-melt adhesive, Nylon 12 and irradiated polyethylene were needed for the complete elimination of residual bubbles. By using Nylon 12 as the hot-melt adhesive, a reliable protective package could be achieved for a fusion spliced optical fiber with a low excess loss of less than 0.06 dB/splice between -60℃ and +70℃ and a high tensile strength of 3.9 kg.
- 一般社団法人電子情報通信学会の論文
- 1997-09-25