1 华中科技大学 武汉光电国家研究中心，武汉 430074
2 中国科学院西安光学精密机械研究所 瞬态光学与光子学国家重点实验室，西安 710119
掺镱石英光纤是掺镱光纤激光器及放大器的重要基础元件.掺镱光纤性能提升是促进掺镱光纤激光器系统功率进一步攀升的关键.本文回顾了高功率掺镱光纤激光器系统功率攀升情况及功率限制性问题，简述了针对激光功率攀升的瓶颈问题所提出的改善性方案.重点阐述了掺镱光纤制备技术、光纤材料、结构性设计在改善功率限制性方面所取得的研究进展，并对未来掺镱石英光纤的研究及发展趋势进行了展望.
光纤激光器 光纤放大器 掺镱石英光纤 光纤制备 热效应 光子暗化 模式不稳 Fiber lasers Fiber laser amplifiers Ytterbium-doped silica fibers Optical fiber fabrication Thermal effects Photodarkening Mode instabilities 光子学报
2019, 48(11): 1148012
Author Affiliations
Abstract
1 Institute of Biomedical Technologies,Nizhny Novgorod State Medical Academy,10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603005, Russia
2 Lobachevsky State University of Nizhni Novgorod,23 Gagarin Avenue BLDG 2, Nizhny Novgorod 603950, Russia
3 Nizhny Novgorod State Medical Academy 10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603005, Russia
4 Institute of Applied Physics, Russian Academy of Sciences 46 Ul'yanov Street, Nizhny Novgorod 603950, Russia
5 Institute on Laser and Information Technologies Russian Academy of Sciences 2 Pionerskaya St., Troitsk 142092, Russia
In this paper, we consider a method of laser resection using the silica glass core from which the cladding layer has been removed as the cutting part of a laser scalpel. An absorbing layer coating the silica fiber tip markedly alters its biotissue cutting characteristics. The results of histological studies of skin after exposure to a laser scalpel with and without a strongly absorbing coating (SAC) at a wavelength of 0.97 μm show that resection using a coated scalpel is more sparing. When an uncoated scalpel was used, skin injury was more apparent in both its surface spread and the depth of structural damage, resulting in poorer tissue regeneration.
Laser surgery silica fibers strongly absorbing coating histology Journal of Innovative Optical Health Sciences
2016, 9(5): 1650011
