| 摘要 |
PURPOSE:To prepare optical fiber having high strength, by etching the surface layer of a parent material for optical fiber with a solution of the hydrofluoric acid type, heating the parent material at high temperature, making the surface smooth, followed by spinning it. CONSTITUTION:A parent material for optical fiber is immersed in a solution of the hydrofluoric acid such as HF, fluorosulfuric acid, fluoronitric acid, etc., preferably ultrasonic washing is also carried out, the surface layer of the parent material is etched. The parent material after etching is heated at high temperature to make the surface smooth, and spun, to give optical fiber having high strength. |
