| Title: | Residual thickness enhanced core-removed D-shaped single-mode fiber and its application for VOC evaporation monitoring |
| Author(s): | Zheng H; Huang B; Li Y; Zhang R; Gu X; Li Z; Lin H; Zhu W; Tang J; Guan H; Lu H; Zhong Y; Fang J; Luo Y; Zhang J; Yu J; Tittel FK; Chen Z; |
| ISSN/ISBN: | 1094-4087 (Electronic) 1094-4087 (Linking) |
| Abstract: | "A core-removed D-shaped structure with different residual thickness (RT) was manufactured on a single mode silica fiber (SMF) to enhance the sensitivity by using of ultra-precise polishing technology. With six different RTs ranging from approximately 55 microm to approximately 28 microm, the RT enhancement effect in a D-shaped SMF was researched in detail. The influence of the RT on its transmission spectra was investigated both theoretically and experimentally. Considering a compromise between the multimode interference efficiency and optical power loss, an optimum RT value of 34.09 microm was achieved. The obtained refractive index (RI) sensitivity was 10243 nm/RIU in the RI range of 1.430-1.444, corresponding to a RI resolution of 1.9x10(-6) RIU. A high-performance all-fiber sensor was developed to monitor the evaporation process volatile organic compounds (VOCs) based on the RT-enhanced D-shaped SMF. As proof of concept, a 2-hour continuous monitoring was carried to monitor the chloroform and alcohol mixture. As a result, the evaporation of alcohol and chloroform were clearly identified and monitored. The developed RT-enhanced D-shaped fiber sensor provides an alternative way for chemical process monitoring and industrial applications" |
| Notes: | "PubMed-not-MEDLINEZheng, Huadan Huang, Bincheng Li, Yuhang Zhang, Renjing Gu, Xiaohang Li, Zhinbin Lin, Haoyang Zhu, Wenguo Tang, Jieyuan Guan, Heyuan Lu, Huihui Zhong, Yongchun Fang, Junbin Luo, Yunhan Zhang, Jun Yu, Jianhui Tittel, Frank K Chen, Zhe eng 2020/05/15 Opt Express. 2020 May 11; 28(10):15641-15651. doi: 10.1364/OE.387951" |
