Intensity modulated silver coated glass optical fiber refractive index sensor

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2018,（9）
• 页码范围: 16-21
• 页数: 6页
• 语种: 英文
• DOI: 10.3788/COL201816.090602

摘要

Miniature optical fiber sensors with thin films as sensitive elements could open new fields for optical fiber sensor applications.Thin films work as sensitive elements and a transducer to get response and feedback from environments,in which optical fibers act as a signal carrier.A novel Ag coated intensity modulated optical fiber sensor based on refractive index changes using IR and UV-Vis (UV-visible) light sources is proposed.The sensor with an IR light source has higher sensitivity compared to a UV-Vis source.When the refractive index is enhanced to 1.38,the normalized intensity of IR and UV-Vis light diminishes to 0.2 and 0.8,respectively.