scholarly journals A Sensitivity-Enhanced Refractive Index Sensor Using a Single-Mode Thin-Core Fiber Incorporating an Abrupt Taper

Sensors ◽  
2012 ◽  
Vol 12 (4) ◽  
pp. 4697-4705 ◽  
Author(s):  
Jie Shi ◽  
Shilin Xiao ◽  
Lilin Yi ◽  
Meihua Bi
Keyword(s):  
Refractive Index ◽  
Single Mode ◽  
Refractive Index Sensor ◽  
Core Fiber

Temperature-insensitive intensity-modulation liquid refractive index sensor based on fiber-optic Michelson probe structure

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Chen Zheng ◽  
Wenlin Feng ◽  
Xiaozhan Yang ◽  
Guojia Huang ◽  
Lian Wang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Beam Propagation Method ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Intensity Change ◽  
Refractive Index Sensor ◽  
Silver Mirror ◽  
Core Fiber ◽  
Core Modes ◽  
Theoretical Results

Abstract A novel liquid refractive index sensor based on the connected single-mode fiber (SMF), no-core fiber (NCF), four-core fiber (FCF), and silver mirror (SM) to form an SMF–NCF–FCF–SM Michelson probe structure is proposed and fabricated. The change of light field in the probe structure has been simulated by the light-beam propagation method. The theoretical results show that light is excited in the NCF and couples into the cores and cladding of FCF at the junction of NCF and FCF. The interference fringes are generated between the cladding modes and core modes of FCF. The sensitivities of the probe in NaCl, sucrose, and glycerol are 171.75 dB/RIU, 121.41 dB/RIU, and 207.50 dB/RIU, respectively. The temperature sensitivity is 0.05 nm/°C, and the intensity change of temperature (≤0.046 dB/°C) is very small and has little effect on the liquid refractive index. Thus, the cross-sensitivity of temperature for the liquid refractive index can be removed. The proposed probe structure has the advantages of easy fabrication, good stability, and linear response, having potential application in the liquid refractive index monitoring environments.

Study of Single Mode-Multimode-Single Mode Refractive Index Sensor Based on No Core Fiber

2013 ◽  
Vol 40 (9) ◽  
pp. 0905001
Author(s):  
陈耀飞 Chen Yaofei ◽  
韩群 Han Qun ◽  
何洋 He Yang ◽  
刘铁根 Liu Tiegen ◽  
洪成青 Hong Chengqing
Keyword(s):  
Refractive Index ◽  
Single Mode ◽  
Refractive Index Sensor ◽  
Core Fiber

A High Sensitivity Index Sensor Based on No-Core Fibers

2013 ◽  
Vol 284-287 ◽  
pp. 1986-1990
Author(s):  
Guei Ru Lin ◽  
Ming Yue Fu ◽  
Hao Jan Sheng ◽  
Hai Tao Sun ◽  
Wen Fung Liu
Keyword(s):  
Refractive Index ◽  
High Sensitivity ◽  
Single Mode ◽  
Wavelength Shift ◽  
Refractive Index Sensor ◽  
Sensitivity Index ◽  
Reflective Index ◽  
Index Measurement ◽  
Core Fiber ◽  
Multi Mode

A simple, small-size, compact and high-sensitivity refractive-index sensor composed of a short no-core fiber (NCF) about 20 mm in length sandwiched between two pieces of single-mode fibers is proposed in this paper. The index measurement is experimentally demonstrated with the sensitivity of 7792.85 nm/ RIU in the range from 1.440 to 1.454 and 227.14 nm/ RIU in the range from 1.300 to 1.430. This sensing mechanism is based on the induced multi-mode interfering wavelength shift in the no-core fiber when the reflective index of the fiber outside is changed.

Highly Sensitive Refractive Index Sensor Based on a Cladding-Etched Thin-Core Fiber Sandwiched between Two Single-Mode Fibers

2012 ◽  
Vol 29 (9) ◽  
pp. 094203 ◽  
Author(s):  
Ben Xu ◽  
Yi Li ◽  
Xin-Yong Dong ◽  
Shang-Zhong Jin ◽  
Zai-Xuan Zhang
Keyword(s):  
Refractive Index ◽  
Single Mode ◽  
Refractive Index Sensor ◽  
Highly Sensitive ◽  
Core Fiber

High sensitivity fiber refractive index sensor using tapered 4-core fiber

2021 ◽  
Author(s):  
Zhen Tian ◽  
Lina Suo ◽  
Nan-Kuang Chen ◽  
Yicun Yao ◽  
Liqiang Zhang ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Core Fiber

A CNT-coated refractive index sensor based on Michelson interferometer with thin-core fiber

2018 ◽  
Vol 46 ◽  
pp. 302-305 ◽  
Author(s):  
Bowen Wang ◽  
Kai Ni ◽  
Piaopiao Wang ◽  
Qifei Ma ◽  
Weijian Tian ◽  
...  
Keyword(s):  
Refractive Index ◽  
Michelson Interferometer ◽  
Refractive Index Sensor ◽  
Core Fiber

A liquid refractive index sensor based on 3-core fiber Michelson interferometer

2019 ◽  
Vol 453 ◽  
pp. 124356 ◽  
Author(s):  
Min Shao ◽  
Liang Han ◽  
Haonan Sun ◽  
Xunli Yin ◽  
Xueguang Qiao
Keyword(s):  
Refractive Index ◽  
Michelson Interferometer ◽  
Refractive Index Sensor ◽  
Core Fiber

scholarly journals Single mode tapered fiber-optic interferometer based refractive index sensor and its application to protein sensing

2014 ◽  
Vol 22 (19) ◽  
pp. 22802 ◽  
Author(s):  
T. K Yadav ◽  
R. Narayanaswamy ◽  
M. H. Abu Bakar ◽  
Y. Mustapha Kamil ◽  
M. A. Mahdi
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Single Mode ◽  
Refractive Index Sensor ◽  
Protein Sensing ◽  
Tapered Fiber ◽  
Fiber Optic Interferometer
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