Refractive index sensors based on the fused tapered special multi-mode fiber

Abstract

In this paper, a novel refractive index (RI) sensor is proposed based on the fused tapered special multi-mode fiber (SMMF). Firstly, a section of SMMF is spliced between two single-mode fibers (SMFs). Then, the SMMF is processed by a fused tapering machine, and a tapered fiber structure is fabricated. Finally, a fused tapered SMMF sensor is obtained for measuring external RI. The RI sensing mechanism of tapered SMMF sensor is analyzed in detail. For different fused tapering lengths, the experimental results show that the RI sensitivity can be up to 444.517 81 nm/RIU in the RI range of 1.334 9—1.347 0. The RI sensitivity is increased with the increase of fused tapering length. Moreover, it has many advantages, including high sensitivity, compact structure, fast response and wide application range. So it can be used to measure the solution concentration in the fields of biochemistry, health care and food processing.

Keywords

Refractive Index / Photonic Crystal Fiber / Wavelength Shift / Amplify Spontaneous Emission / Wide Application Range

References

[1] WenX., NingT., YouH., LiJ., FengT., PeiL., JianW.. Optoelectronics Letters, 2013, 9: 325

[2] MengH., ShenW., ZhangG., WuX., WangW., TanC., HuangX.. Sensors and Actuators B: Chemical, 2011, 160: 720

[3] ZhangX., PengW., LiuY., PanL.. Optics Communications, 2013, 294: 188

[4] ChengH., JingZ., PengW., HaoH., LiH., ZhangX.. Journal of Optoelectronics·Laser, 2012, 26: 649

[5] ZhaoY., PangF., DongY., WenJ., ChenZ., WangT.. Optics Express, 2013, 21: 26136

[6] GanH., ChenZ., ZhangJ., GanH., TangJ., LuoY., YuJ., LuH., GuanH.. Journal of Optoelectronics·Laser, 2015, 26: 633

[7] CaoY., LiuH., TongZ., YuanS., ZhaoS.. Optoelectronics Letters, 2015, 11: 69

[8] ShiS., ZhouX., ZhangZ., LiuY.. Journal of Optoelectronics·Laser, 2012, 23: 1644

[9] ZhuS., PangF., HuangS., ZouF., DongY., WangT.. Optics Express, 2015, 23: 13880

[10] TatarP., KacikD.. Optical Fiber Technology, 2013, 19: 330

[11] XuL., JiangL., WangS., LiB., LuY.. Applied Optics, 2013, 52: 2038

[12] IbrahimS. A., RahmanN. A., Abu BakarM. H., GireiS. H., YaacobM. H., AhmadH., MahdiM. A.. Optics Express, 2015, 23: 2837

[13] FuG., GuoP., FuX., BiW., GaoF.. Journal of Optoelectronics·Laser, 2014, 25: 1657

[14] JiY., FuG., FuX., ShenY., BiW.. Acta Optica Sinica, 2013, 33: 1006005

Just Accepted

This article has successfully passed peer review and final editorial review, and will soon enter typesetting, proofreading and other publishing processes. The currently displayed version is the accepted final manuscript. The officially published version will be updated with format, DOI and citation information upon launch. We recommend that you pay attention to subsequent journal notifications and preferentially cite the officially published version. Thank you for your support and cooperation.