目前,对光纤预制棒的制造世界各国已发展了多种化学气相沉积法。本文介绍了六种气相沉积技术,从性能上对这些方法进行了评价,对它们的应用与经济效益进行比较,并预言了工艺技术的未来趋势。 At present, various chemical vapor deposition methods have been developed for the manufacture of optical fiber preform in various countries of the world. In this paper, six kinds of vapor deposition techniques are introduced. These methods are evaluated from the aspects of performance, their applications and economic benefits are compared, and the future trend of the technology is forecasted.