Mach-Zehnder Interferometer Based on Fiber Core Mismatch and Core-Offset Splicing for the Simultaneous Sensing of Temperature and Refractive Index

Shuyao Zong; Xiaoyan Wen; Dongsheng Zhang

doi:10.3788/LOP57.170607

[1] Silva S, Roriz P, Frazão O. Refractive index measurement of liquids based on microstructured optical fibers[J]. Photonics, 1, 516-529(2014).

[2] Yang B Y, Niu Y X, Yang B W et al. High sensitivity balloon-like refractometric sensor based on singlemode-tapered multimode-singlemode fiber[J]. Sensors and Actuators A: Physical, 281, 42-47(2018).

[3] Shao L Y, Liang J W, Zhang X P et al. High resolution refractive index sensing with dual-wavelength fiber laser[J]. IEEE Sensors Journal, 8463-8467(2016).

[4] Iadicicco A, Campopiano S, Cutolo A et al. Refractive index sensor based on microstructured fiber Bragg grating[J]. IEEE Photonics Technology Letters, 17, 1250-1252(2005).

[5] Ma X C, Zhou Z N, Liu A C et al. A high-sensitivity and stable fiber Bragg grating temperature sensog[J]. Journal of Optoelectronics·Laser, 24, 1245-1250(2013).

[6] Baldini F, Brenci M, Chiavaioli F et al. Optical fibre gratings as tools for chemical and biochemical sensing[J]. Analytical and Bioanalytical Chemistry, 402, 109-116(2012).

[7] Yang J, Yang L, Xu C Q et al. Long-period grating refractive index sensor with a modified cladding structure for large operational range and high sensitivity[J]. Applied Optics, 45, 6142-6147(2006).

[8] Wang Q, Du C, Zhang J M et al. Sensitivity-enhanced temperature sensor based on PDMS-coated long period fiber grating[J]. Optics Communications, 377, 89-93(2016).

[9] Lim J L. Hu D J J, Shum P P, et al. Cascaded photonic crystal fiber interferometers for refractive index sensing[J]. IEEE Photonics Journal, 4, 1163-1169(2012).

[10] Choi H Y, Kim M J, Lee B H. All-fiber Mach-Zehnder type interferometers formed in photonic crystal fiber[J]. Optics Express, 15, 5711-5720(2007).

[11] Qian W W, Zhao C L, Chan C C et al. Temperature sensing based on ethanol-filled photonic crystal fiber modal interferometer[J]. IEEE Sensors Journal, 12, 2593-2597(2012).

[12] Tian Z B. Yam S S H, Barnes J, et al. Refractive index sensing with Mach-Zehnder interferometer based on concatenating two single-mode fiber tapers[J]. IEEE Photonics Technology Letters, 20, 626-628(2008).

[13] Zhao Y, Chen M Q, Xia F et al. Spectrum online-tunable Mach-Zehnder interferometer based on step-like tapers and its refractive index sensing characteristics[J]. Optics Communications, 403, 143-149(2017).

[14] Rong Q Z, Qiao X G, Wang R H et al. High-sensitive fiber-optic refractometer based on a core-diameter-mismatch Mach-Zehnder interferometer[J]. IEEE Sensors Journal, 12, 2501-2505(2012).

[15] Liu X X, Zhang X P, Liu Y et al. Multi-point fiber-optic refractive index sensor by using coreless fibers[J]. Optics Communications, 365, 168-172(2016).

[16] Duan D W, Rao Y J, Xu L C et al. In-fiber Mach-Zehnder interferometer formed by large lateral offset fusion splicing for gases refractive index measurement with high sensitivity[J]. Sensors and Actuators B: Chemical, 160, 1198-1202(2011).

[17] Zhang C, Xu S, Zhao J F et al. Multipoint refractive index and temperature fiber optic sensor based on cascaded no core fiber-fiber Bragg grating structures[J]. Optical Engineering, 56, 027102(2017).

[18] Rong Q Z, Qiao X G, Guo T et al. Temperature-calibrated fiber-optic refractometer based on a compact FBG-SMS structure[J]. Chinese Optics Letters, 10, 030604(2012). http://www.opticsjournal.net/Articles/Abstract?aid=OJ111118000180lRoUrX

[19] Li J L, Zhang W G, Gao S C et al. Long-period fiber grating cascaded to an S fiber taper for simultaneous measurement of temperature and refractive index[J]. IEEE Photonics Technology Letters, 25, 888-891(2013).

[20] Chen Y F, Wang Y, Chen R Y et al. A hybrid multimode interference structure-based refractive index and temperature fiber sensor[J]. IEEE Sensors Journal, 16, 331-335(2016).

[21] Cheng J N. Mach-Zehnder interferometer based on fiber taper and fiber core mismatch for humidity sensing[J]. Acta Physica Sinica, 67, 024212(2018).

[22] Yu X J, Bu D, Chen X F et al. Lateral stress sensor based on an in-fiber Mach-Zehnder interferometer and Fourier analysis[J]. IEEE Photonics Journal, 8, 1-10(2016).

[23] Wu D, Zhu T, Deng M et al. Refractive index sensing based on Mach-Zehnder interferometer formed by three cascaded single-mode fiber tapers[J]. Applied Optics, 50, 1548-1553(2011).