CAREER: Transport Phenomena in the Chemical Vapor Deposition of Hermetic Optical Fiber Coatings: An Integrated Research and Education Program

该研究计划将研究旨在限制水和氢扩散到光纤中的密封涂层，以提高光纤抗疲劳和氢致衰减的能力。 通过从根本上理解通过化学气相沉积制造这种膜所涉及的传输现象，将发现改进的密封涂层。 在新的实验和理论分析的指导下，本项目将利用工艺性能关系的基础知识，更好地理解制造上级密封光纤涂层。 从这个项目中获得的基础知识将用于连接工艺参数，如拉丝速度，光纤温度和反应气体浓度的涂层相，结构，气密性和沉积速率。由于这些关系将能够确定新的方法和最佳条件，以提高密封光纤的性能，本研究的结果预计将提高光纤的性能和可靠性，从而改善我们的信息技术基础设施。

This research program will investigate hermetic coatings designed to limit the diffusion of water and hydrogen into optical fibers in order to improve fiber resistance to fatigue and hydrogen-induced attenuation. An improved hermetic coating will be found by fundamentally understanding the transport phenomena involved in the manufacture of such films by chemical vapor deposition. Guided by new experimental and theoretical analyses, this project will develop a better understanding to manufacture superior hermetic optical fiber coatings using fundamental knowledge of process property relationships. Fundamental knowledge gained from this project will be used to link process parameters such as draw rate, fiber temperature, and reactant gas concentration to the coating phase, structure, hermeticity, and deposition rate. Since these relationships will be able to identify new methods and optimal conditions to improve hermetic fiber performance, results from this study are expected to enhance fiber performance and reliability, and hence improve our information technology infrastructure.