期刊论文详细信息
IEICE Electronics Express
High-sensitivity optical fiber refractive index sensor using multimode interference structure
Yoshiki Matsumoto1  Shuji Taue1  Hideki Fukano1 
[1] The Graduate School of Natural Science and Technology, Okayama University
关键词: MMI;    multimode interference;    optical fiber sensor;    refractive index sensor;   
DOI  :  10.1587/elex.9.302
学科分类:电子、光学、磁材料
来源: Denshi Jouhou Tsuushin Gakkai
PDF
【 摘 要 】

References(7)Cited-By(5)This letter presents the experimental investigation to increase the sensitivity of an optical fiber refractive index sensor with a multimode interference (MMI) structure. It is confirmed that the interference wavelength can be set in the long-wavelength region by adjusting the sensing-part length. Moreover, it is shown that the fineness of the cores in the input and output fibers is essential to obtain a sharp interference signal. We demonstrate the high sensitivity of an MMI-structured optical fiber sensor by applying it to refractive index measurements of ethanol/water solutions. This refractive index sensor reveals a resolution as fine as 1.8 × 10-5, which is the highest value so far reported in this type and has one order higher sensitivity than a commercially available Abbe refractometer (∼ 10-4).

【 授权许可】

Unknown   

【 预 览 】
附件列表
Files Size Format View
RO201911300651830ZK.pdf 379KB PDF download
  文献评价指标  
  下载次数:12次 浏览次数:26次