FLUORIDE GLASS FIBER FOR INFRARED LASER POWER DELIVERY

本项目的目的是在氟玻璃纤维探头的结果 用于内窥镜输送2.9微米Er：Yag激光能量。 这 对应于最大组织吸收的波长， 无炭精确切除组织 潜在的手术 应用包括冠状动脉血管成形术，眼科手术， 神经外科、妇产科和其他显微外科手术。 在第一阶段，Er：Yag功率输送的可行性通过 展示了氟化锆纤维。 还显示 一种可靠的高光学加工技术 研制出高质量的氟化物玻璃纤维。 实质性 改进了动力处理和强度的 纤维 第二阶段的研究将集中在实施目前的 用于扩大氟化物纤维生产的工艺 在各个方面的证明发展，消除激光 损伤，特别是在光纤端部，并优化光纤 通过开发新的和改进的表面处理来增强强度 技术. 穿刺针设计将允许在 西场无光纤损坏或断裂。 此外，一个快速 搭建了扫描光纤光谱仪和温度传感器 将声光可调谐滤波器用于医学诊断 应用.

This project is intended to result in a fluoride glass fiber probe for endoscopic delivery of 2.9 micron Er:Yag laser energy. This corresponds to the wavelength of maximum tissue absorption for char-free, precise ablation of tissue. Potential surgical applications include coronary angioplasty, opthalmic surgery, neurosurgery, ob/gyn, and other microsurgical procedures. During Phase I, the feasibility of Er:Yag power delivery through zirconium fluoride fibers was demonstrated. It was also shown that a reliable processing technique for fabricating high optical quality fluoride glass fibers was established. Substantial improvements were made to the power handling and strength of the fibers. The Phase II research will concentrate on implementing the present process into up-scaling the production of the fluoride fibers used in various aspects of the prove development, eliminating laser damage, especially at the fiber ends, and optimizing the fiber strength by developing new and improved surface treatment techniques. The probes design will allow effective ablation in a west field without fiber damage or breakage. In addition, a rapid scan fiber spectrometer and temperature sensor will be constructed using the acouto-optic tunable filter for medical diagnostic applications.