Zhong Nianbing, Liao Qiang, Zhu Xun, Wang Yongzhong, Chen Rong
Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing, China.
Appl Opt. 2013 Mar 1;52(7):1432-40. doi: 10.1364/AO.52.001432.
An etching method for preparing high-quality fiber-optic sensors using a buffered etchant with ultrasonic agitation is proposed. The effects of etching conditions on the etch rate and surface morphology of the etched fibers are investigated. The effect of surface roughness is discussed on the fibers' optical properties. Linear etching behavior and a smooth fiber surface can be repeatedly obtained by adjusting the ultrasonic power and etchant pH. The fibers' spectral quality is improved as the ratio of the pit depth to size decreases, and the fibers with smooth surfaces are more sensitive to a bacterial suspension than those with rough surfaces.
提出了一种使用带有超声搅拌的缓冲蚀刻剂制备高质量光纤传感器的蚀刻方法。研究了蚀刻条件对蚀刻光纤的蚀刻速率和表面形态的影响。讨论了表面粗糙度对光纤光学性能的影响。通过调节超声功率和蚀刻剂pH值，可以反复获得线性蚀刻行为和平滑的光纤表面。随着凹坑深度与尺寸之比的减小，光纤的光谱质量得到改善，并且表面光滑的光纤比表面粗糙的光纤对细菌悬浮液更敏感。
