SBIR Phase I: Endohedral Metallofullerenes for Fiber Optic Applications

SBIR 第一阶段：用于光纤应用的内嵌金属富勒烯

• 批准号: 9861142
• 负责人: Michael Miller
• 金额: $ 10万
• 依托单位: Luna Innovations, Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9861142&HistoricalAwards=false
• 关键词: SBIR; Phase; Endohedral; Metallofullerenes; Fiber

9861142 This Phase I Small Business Innovation Research project aims to obtain erbium endohedral metallofullerenes using recently developed purification processes and incorporate these materials into optical fiber and related devices with improved performance suitable for near term commercial application. Glasses activated with trivalent lanthanide ions emitting in the near infrared region are of current interest because of their potentiality as materials for high power lasers and optical amplifiers for fiber communications, and for fiber optic sensing applications. Currently, erbium doped fiber amplifiers (EDFA) are used for regeneration of optical data, enabling transmission over extremely long distances. In addition, erbium doped fiber is being investigated for use in ring laser devices for gyroscopic applications, and fluorescence of rare-earth materials such as erbium may be used to measure temperature through the relation between the fluorescent decay time and temperature. By encapsulating erbium ions in the metallofullerene Er2 @ C82, the erbium is provided an exceptionally homogeneous environment relative to silica glass. This can have the effect of increasing the excited state lifetime and corresponding laser efficiency, and can be important in upconversion lasers. Improved erbium doped materials using endohedral metallofullerenes would have immediate commercial application in erbium doped fiber amplifiers, fiber lasers, fiber ring laser gyroscopes, and other communication and sensor products, including fluorescence based temperature sensors for aircraft applications. Purified erbium endohedral metallofullerene material can be sold as raw material, and fiber preforms doped with erbium EMF could be sold to fiber manufacturers.

9861142 这一阶段的小型企业创新研究项目旨在利用最近开发的纯化工艺获得铒内嵌金属富勒烯，并将这些材料纳入光纤和相关设备中，以提高性能，适合近期商业应用。用在近红外区域发射的三价稀土离子激活的玻璃目前引起人们的兴趣，因为它们具有作为用于光纤通信和光纤传感应用的高功率激光器和光学放大器的材料的潜力。目前，掺铒光纤放大器（EDFA）用于光数据的再生，从而实现极长距离的传输。此外，掺铒光纤正在研究用于陀螺仪应用的环形激光装置，并且铒等稀土材料的荧光可用于通过荧光衰减时间与温度之间的关系来测量温度。通过将铒离子封装在金属富勒烯 Er2 @ C82 中，为铒提供了相对于石英玻璃而言异常均匀的环境。这可以起到增加激发态寿命和相应激光效率的作用，并且对于上转换激光器来说非常重要。 使用内嵌金属富勒烯改进的掺铒材料将在掺铒光纤放大器、光纤激光器、光纤环形激光陀螺仪和其他通信和传感器产品（包括用于飞机应用的基于荧光的温度传感器）中立即获得商业应用。纯化的铒内嵌金属富勒烯材料可以作为原材料出售，掺有铒EMF的光纤预制棒可以出售给光纤制造商。