ULTRAHIGH SENSITIVE REFRACTIVE INDEX SENSOR BASED ON TAPERED MULTICORE OPTICAL FIBER

Öz The refractive index sensors based on tapered optical fiber are attractive for many industries due to sensing capability in a variety of application. In this paper, we proposed a refractive index sensor based on multicore fiber (MCF) sandwiched between two standard single mode fibers (SMF). The sensor consisting of three sections, SMF- MCF-SMF is structurally simple and can be easily produced by joining these parts. The MFC contains seven cores and these cores are surrounded by a single cladding. The sensing region is obtained by tapering the MCF section where the evanescent field is generated. The single mode propagating along the SMF is stimulated at the first joint and is coupled to the cladding modes. These modes interfere with the core mode after passing the second joint. The transmission spectrum of the output light at the end of the third section is sensitive to the refractive index (RI) of the environment surrounding the cladding. In this study, the RI sensitivity of the proposed sensor was analyzed numerically and the RI sensing characteristic was investigated for different measurement ranges and different structural configurations. The results show that the refractive index sensitivity is extremely high in the range of about 1.44 to 1.45 RIU. In addition, the developed sensor has many advantages such as compact construction, low cost, small size and easy fabrication. It also has the potential to perform high precision measurements in fields such as biochemistry, health care and biological applications.

Anahtar Kelimeler:

Multicore fiber, refractive index sensing, tapered fiber, high sensitivity, beam propagation

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Zhao, Y., Cai, L., Li, X., Meng, F. and Zhao, Z., Investigation of the high sensitivity RI sensor based on SMS fiber structure, Sens. and Act. A, 205 (2014) 186-190.

Cohoon, G., Boyter, C. H., Errico, M., Vandervoort, K. and Salik, E., Enhancing sensitivity of biconical tapered fiber sensors with multiple passes through the taper, Opt. Eng., 49 (3) (2010) 034401.

Goh, L., Anoda, Y., Kazuhiro, W. and Shinomiya, N., Remote Management for Multipoint sensing system using hetero-core spliced optical fiber sensors, Sens., 14 (2014) 468-477.

Wang, P., Brambilla, G., Ding, M., Semenova, Y., Wu, Q. and Farrell, G., High-sensitivity, evanescent field refractometric sensor based on a tapered, multimode fiber interference, Opt. Lett., 36 (12) (2011) 2233-2235.

Han, M, Guo, F.W. and Lu, Y. F., Optical fiber refractometer based on cladding-mode Bragg grating, Opt. Lett., 35 (2010) 399-401.

Korposh, S., Lee, S.W., James, S.W. and Tatam, R.P., Refractive index sensitivity of fiber-optic long period gratings coated with SiO2 nanoparticle mesoporous thin films, Meas. Sci. Technol., 22 (2011) 075208.

Jiejun, Z., Qizhen, S., Ruibing, L., Jianghai, W., Deming L. and Perry, Sh., Microfiber Fabry–Perot interferometer fabricated by taper-drawing technique and its application as a radio frequency interrogated refractive index sensor, Opt. Lett. , 37 (14) (2012) 2925-2927.

Wu, X., Zhang, J., Chen, J., Zhao, Ch., and Gong, Q., Refractive index sensor based on surface-plasmon interference, Opt. Lett., 34 (3) (2009) 392-394.

Dong, Y., Wang, K. and Jin, X., Package of a dual-tapered-fiber coupled microsphere resonator with high Q factor, Opt. Comm., 350 (1) (2015) 230-234.

Del Villar, I., Zubiate, P., Zamarreño, C.R., Arregui, F. J. and Matias, I.R., Optimization in nanocoated D-shaped, Opt. Fib. Sens.”, 25 (10), (2017) 10743-10756.

Tai, Y.H. and Wei, P.K., Sensitive liquid refractive index sensors using tapered optical fiber tips, Opt. Lett., 35 (2010) 944-946.

Sarkaleh, A.K., Lahijani, B.V., Saberkari, H. and Esmaeeli, A., Optical Ring Resonators: A Platform for Biological Sensing Applications, J. Med. Signal Sens., 7 (3) (2017) 185-191.

Shao, L., Zhao, J., Dong, X., Tam, H. Y., Lu, C. and He, S., Long-period prating fabricated by periodically tapering standard single-mode fiber, Appl. Opt., 47 (10) (2008) 1549-1552.

Lee, G., Kumekawa, N., Watanabe, K. and Shinomiya, N., Hetero-core spliced optical fiber SPR sensor system for soil gravity water monitoring in agricultural environments, Comp. and Elec. in Agriculture, 101 (2014) 110-117.

Shi, J., Xiao, S., Yi, L. and Bi, M., A Sensitivity-Enhanced Refractive Index Sensor Using a Single-Mode Thin-Core Fiber Incorporating an Abrupt Taper, Sensors, 12 (2012) 4697-4705. [ Yang, L., Zhibo, L. and Shuisheng, J., Multimode interference refractive index sensor based on coreless fiber, Photonic Sens., 4 (1) (2014) 21-27.

Qiang, W., Yuliya, S., Pengfei, W. and Gerald, F., High sensitivity SMS fiber structure based refractometer-analysis and experiment, Opt. exp., 19 (9) (2011) 7937-7944.

Baharin, N.F, Sidek, N., Musa, M.A., Azmi, A.I., Abdullah, A.S., Noor, M.Y.M. and Roslan, E. M., Hollow-core photonic crystal fiber refractive index sensor based on modal interference, J. of Eng. and App. Scien., 11 (9) (2016) 5702-06.

Guzmán-Sepúlveda, J.R., Guzmán-Cabrera, R., Torres-Cisneros, M., Sánchez-Mondragón, J.J. and May-Arrioja, A highly sensitive fiber optic sensor based on two-core fiber for refractive index measurement, Sens., 13 (10) (2013) 14200-13.

Zhang, Ch., Ning, T., Li, J., Pei, L., Li, Ch. and Lin, H., Refractive index sensor based on tapered multicore fiber, Opt. Fib. Tech., 33, 71-76, 2017.

Yang, J., Jiang, L., Wang, S., High sensitivity of taper-based Mach-Zehnder interferometer embedded in a thinned optical fiber for refractive index sensing, Appl. Opt., 50 (28) (2011) 5503-5507.

Kim, B., Kim, T., Cui, L., Twin core photonic crystal fiber for in-line Mach-Zehnder interferometric sensing application, Opt. Exp., 17 (18) (2009) 15502-07.

Hu, J., Huang, H., Bai, M., Zhan, T., Yang, Z., Yu, Y. and Qu, B., A high sensitive fiber-optic strain sensor with tunable temperature sensitivity for temperature-compensation measurement, Scien. Rep., 7 (2017) 42430.

Kissinger, T., Chehura, E., Staines, S.E., James, S.W. and Tatam, R.P., Dynamic fiber-optic shape sensing using fiber segment interferometry, J. of Lightw. Techn., 36 (4) (2018) 917-925.

Rifat, A.A., Mahdiraji, G.A., Sua, Y.M., Ahmed, R., Shee, Y.G. and Mahamd Adikan, F.R., Highly sensitive multi-core flat fiber surface plasmon resonance refractive index sensor, Opt. Exp., 24 (3), (2016) 2485-2495.

Xing-hu, F., Yan-li, X, Qin, L, Hai-yanh, X, Chuan-qing, Y, Shun-yang, Z, Guang-wei, F. and Wei-hong, B., Refractive index sensors based on the fused taper special multi-mode fiber, Optoelect. Lett., 12 (1) (2016) 12-15.

Navruz, I., Ari, F. and Bilsel, M., Shape optimization of bioconical optical fiber sensor for maximum detection, I. International Scientific and Vocational Studies Congress (Bilmess-2017), October 2017, Urgup, Turkey.