scholarly journals Temperature-compensated multi-point refractive index sensing based on cascaded Fabry-Perot cavity and FMCW interferometry

2021 ◽  
Author(s):  
Zongda Zhu ◽  
Dexin Ba ◽  
lu liu ◽  
liqiang qiu ◽  
Yang Shunhu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensing ◽  
Fabry Perot

scholarly journals A Sensing Peak Identification Method for Fiber Extrinsic Fabry–Perot Interferometric Refractive Index Sensing

Sensors ◽  
2018 ◽  
Vol 19 (1) ◽  
pp. 96 ◽  
Author(s):  
Bowen Yang ◽  
Biyao Yang ◽  
Ji Zhang ◽  
Yiheng Yin ◽  
Yanxiong Niu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Measurement Accuracy ◽  
Measurement Range ◽  
Superior Performance ◽  
Refractive Index Sensing ◽  
Identification Method ◽  
Peak Identification ◽  
Fabry Perot ◽  
High Measurement ◽  
Lateral Offset

A novel sensing peak identification method for high accuracy refractive index (RI) sensing is proposed. The implementation takes the intensity of interference maximum as the characteristic to distinguish interference peaks, tracking the sensing peak continually during a RI changes, with high measurement accuracy and simple computation. To verify the effect of the method, the extrinsic Fabry–Perot interferometer (EFPI) sensor has been fabricated using the large lateral offset splicing technique. In the RI range from 1.346 to 1.388, the measurement range of the EFPI with the proposed method reaches at least 6 times larger than that of EFPI with the wavelength tracking method and the largest measurement error is −4.47 × 10−4. The EFPI refractive index (RI) sensor identified the sensing peak is believed to play an important role in RI, concentration and density sensing, etc., for superior performance.

scholarly journals Metal-dielectric-metal multilayer structure with tunable Fabry-Perot resonance for highly sensitive refractive index sensing

2021 ◽  
Vol 70 (14) ◽  
pp. 140702-140702
Author(s):  
Zhang Xiang-Yu ◽  
◽  
Liu Hui-Gang ◽  
Kang Ming ◽  
Liu Bo ◽  
...  
Keyword(s):  
Refractive Index ◽  
Multilayer Structure ◽  
Refractive Index Sensing ◽  
Highly Sensitive ◽  
Fabry Perot

A Large-Area, Mushroom-Capped Plasmonic Perfect Absorber: Refractive Index Sensing and Fabry-Perot Cavity Mechanism

2015 ◽  
Vol 3 (12) ◽  
pp. 1779-1786 ◽  
Author(s):  
Khagendra Bhattarai ◽  
Zahyun Ku ◽  
Sinhara Silva ◽  
Jiyeon Jeon ◽  
Jun Oh Kim ◽  
...  
Keyword(s):  
Refractive Index ◽  
Perfect Absorber ◽  
Large Area ◽  
Refractive Index Sensing ◽  
Fabry Perot

Microfiber-Enabled In-line Fabry–Pérot Interferometer for High-Sensitive Force and Refractive Index Sensing

2014 ◽  
Vol 32 (9) ◽  
pp. 1682-1688 ◽  
Author(s):  
Shecheng Gao ◽  
Weigang Zhang ◽  
Zhi-Yong Bai ◽  
Hao Zhang ◽  
Wei Lin ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensing ◽  
Fabry Perot

A microdroplet-etched fiber Fabry-Perot resonator for the refractive index sensing

2015 ◽  
Author(s):  
Bo Liu ◽  
Jie Li ◽  
Li-Peng Sun ◽  
Mengmei Geng ◽  
Yunyun Huang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensing ◽  
Fabry Perot

scholarly journals Fiber optic microsphere with ZnO thin film for potential application in refractive index sensor – theoretical study

2018 ◽  
Vol 10 (3) ◽  
pp. 85 ◽  
Author(s):  
Marzena Hirsch
Keyword(s):  
Thin Film ◽  
Refractive Index ◽  
Optical Fiber ◽  
Fiber Optic ◽  
Refractive Index Sensor ◽  
Zno Thin Film ◽  
Sensors And Actuators ◽  
Low Coherence ◽  
Refractive Index Sensing ◽  
Fabry Perot

Optical fiber sensors of refractive index play important role in analysis of biological and chemical samples. This work presents a theoretical investigation of a spectral response of fiber optic microsphere with zinc-oxide (ZnO) thin film deposited on the surface and evaluates the prospect of using such structure for refractive index sensing. Microsphere is fabricated by optical fiber tapering method on the base of a single mode fiber. A numerical model is described and simulation was conducted to assess the influence of the ZnO layer deposition on a reflected signal. The results indicate that ZnO film improves the performance in terms of a potential application in refractive index sensor. Full Text: PDF ReferencesY. Qian, Y. Zhao, Q. Wu, Y. Yang, Review of salinity measurement technology based on optical fiber sensor, Sensors and Actuators B: Chemical, 260, 86–105 (2018). CrossRef M. Jędrzejewska-Szczerska, Response of a New Low-Coherence Fabry-Pérot Sensor to Hematocrit Levels in Human Blood, Sensors, 14, 4, 6965–6976, (2014). CrossRef F. Sequeira et al., Refractive Index Sensing with D-Shaped Plastic Optical Fibers for Chemical and Biochemical Applications, Sensors, 16, 12, 2119, (2016). CrossRef M. Jędrzejewska-Szczerska et al., ALD thin ZnO layer as an active medium in a fiber-optic Fabry–Pérot interferometer, Sensors and Actuators A: Physical, 221, 88–94, (2015). CrossRef M. Hirsch, D. Majchrowicz, P. Wierzba, M. Weber, M. Bechelany, M. Jędrzejewska-Szczerska, Low-Coherence Interferometric Fiber-Optic Sensors with Potential Applications as Biosensors, Sensors, 17, 2, 261, (2017). CrossRef M. Hirsch, P. Wierzba, M. Jędrzejewska-Szczerska, Application of thin dielectric films in low coherence fiber-optic Fabry-Pérot sensing interferometers: comparative study, Proc. SPIE 10161, 101610D (2016). CrossRef J. Pluciński, K. Karpienko, Fiber optic Fabry-Pérot sensors: modeling versus measurements results, Proc. SPIE 10034, 100340H (2016). CrossRef F. Goldsmith, Quasioptical systems: Gaussian beam quasioptical propagation and applications. (Piscataway, NJ: IEEE Press 1998). CrossRef

scholarly journals Refractive index sensing setup based on a taper and an intrinsic micro Fabry-Perot interferometer

2015 ◽  
Vol 10 ◽  
Author(s):  
M. Cano-Contreras ◽  
A. D. Guzman-Chavez ◽  
E. Vargas-Rodriguez ◽  
E. Gallegos-Arellano ◽  
D. Jauregui-Vazquez ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensing ◽  
Fabry Perot

Simultaneous temperature and refractive index sensing using C-fibre Fabry-Perot microcavity

2020 ◽  
Author(s):  
Xuegang Li ◽  
Liushun Xie ◽  
Stephen C. Warren-Smith ◽  
Heike Ebendorff-Heidepriem ◽  
Linh V. Nguyen
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensing ◽  
Fabry Perot ◽  
C Fibre

scholarly journals In-line open-cavity Fabry–Pérot interferometer formed by C-shaped fiber fortemperature-insensitive refractive index sensing

2014 ◽  
Vol 22 (18) ◽  
pp. 21757 ◽  
Author(s):  
Chuang Wu ◽  
Zhengyong Liu ◽  
A. Ping Zhang ◽  
Bai-Ou Guan ◽  
Hwa-Yaw Tam
Keyword(s):  
Refractive Index ◽  
Open Cavity ◽  
Refractive Index Sensing ◽  
Fabry Perot
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