High-sensitivity gas pressure sensor based on a multimode interferometer using hollow-core tube lattice fiber

2020 ◽  
Vol 45 (16) ◽  
pp. 4571
Author(s):  
Zhengyong Li ◽  
Changrui Liao ◽  
Yatao Yang ◽  
Ying Wang ◽  
Yiping Wang
Keyword(s):  
Pressure Sensor ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Hollow Core ◽  
Core Tube

scholarly journals Temperature-Independent Gas Pressure Sensor with High Birefringence Photonic Crystal Fiber-Based Reflective Lyot Filter

Sensors ◽  
2019 ◽  
Vol 19 (23) ◽  
pp. 5312 ◽  
Author(s):  
Bo Huang ◽  
Ying Wang ◽  
Chun Mao
Keyword(s):  
Pressure Sensor ◽  
Simple Structure ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Hollow Core ◽  
Photonic Bandgap Fiber ◽  
High Birefringence ◽  
Crystal Fiber ◽  
Lyot Filter

A novel temperature-independent gas pressure sensor based on a reflective fiber Lyot filter is presented in this paper. The reflective fiber Lyot filter is simply consist of a fiber polarizer and a segment of hollow-core photonic bandgap fiber (HB-PCF). The HB-PCF plays the role of birefringent cavity in the reflective fiber Lyot filter and works as the sensor head in the gas pressure sensor. Experiment results show that the responses of the sensor to gas pressure and temperature are 3.94 nm/MPa and −0.009 nm/°C, indicating that the proposed gas pressure is sensitive to gas pressure rather than temperature. Coupled with the advantages of simple structure, easy manufacture, high sensitivity and temperature independent, the proposed reflective fiber Lyot filter-based gas pressure sensor holds great potential application in the field of gas pressure monitoring.

scholarly journals High-sensitivity gas pressure sensor based on hollow-core photonic bandgap fiber Mach-Zehnder interferometer

2018 ◽  
Vol 26 (23) ◽  
pp. 30108 ◽  
Author(s):  
Chun Mao ◽  
Bo Huang ◽  
Ying Wang ◽  
Yijian Huang ◽  
Longfei Zhang ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Photonic Bandgap ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Zehnder Interferometer ◽  
Hollow Core ◽  
Photonic Bandgap Fiber ◽  
Mach Zehnder Interferometer

scholarly journals Gas Pressure Sensor Based on BDK-Doped Polymer Optical Fiber

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 717 ◽  
Author(s):  
Xin Cheng ◽  
Yi Liu ◽  
Changyuan Yu
Keyword(s):  
Optical Fiber ◽  
Pressure Sensor ◽  
Chemical Structure ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Air Pressure ◽  
Response Behavior ◽  
Polymer Optical Fiber ◽  
The Stability ◽  
Doped Polymer

This paper presents a high sensitivity gas pressure sensor with benzyl-dimethylketal (BDK)-doped polymer optical fiber Bragg grating (POFBG), whose sensitivity is up to 8.12 pm/kPa and 12.12 pm/kPa in positive and negative pressure atmosphere, respectively. The high sensitivity can be explained by its porous chemical structure. The stability and response behavior under air pressure atmosphere has also been investigated. The new understanding of the air pressure response principle and sensitivity difference for the presented sensor can be a worthy reference.

A high sensitivity gas pressure sensor based on femtosecond laser micro/nano processing

2019 ◽  
Vol 197 (1) ◽  
pp. 70-76
Author(s):  
Ting She ◽  
Hongfeng Lin ◽  
Fufei Liu ◽  
Yutang Dai ◽  
Defeng Liu
Keyword(s):  
Femtosecond Laser ◽  
Pressure Sensor ◽  
High Sensitivity ◽  
Gas Pressure

Diaphragm-free gas-pressure sensor probe based on hollow-core photonic bandgap fiber

2018 ◽  
Vol 43 (13) ◽  
pp. 3017 ◽  
Author(s):  
Zhe Zhang ◽  
Jun He ◽  
Qi Dong ◽  
Zhiyong Bai ◽  
Changrui Liao ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Photonic Bandgap ◽  
Gas Pressure ◽  
Hollow Core ◽  
Free Gas ◽  
Photonic Bandgap Fiber ◽  
Sensor Probe

High-Sensitivity Gas-Pressure Sensor Based on Fiber-Tip PVC Diaphragm Fabry–Pérot Interferometer

2017 ◽  
Vol 35 (18) ◽  
pp. 4067-4071 ◽  
Author(s):  
Zhe Zhang ◽  
Changrui Liao ◽  
Jian Tang ◽  
Zhiyong Bai ◽  
Kuikui Guo ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Fabry Perot

scholarly journals High Sensitivity Fiber Gas Pressure Sensor with Two Separated Fabry–Pérot Interferometers Based on the Vernier Effect

Photonics ◽  
2022 ◽  
Vol 9 (1) ◽  
pp. 31
Author(s):  
Xiaokang Song ◽  
Liangtao Hou ◽  
Xiangyu Wei ◽  
Hang Su ◽  
Chang Li ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Single Mode ◽  
Gas Pressure ◽  
Pressure Sensing ◽  
Fabry Perot ◽  
Inner Diameter ◽  
Vernier Effect ◽  
Micro Cavity

A high sensitivity optical fiber gas pressure sensor based on paralleled Fabry–Pérot interferometers (FPIs) was demonstrated. One micro-cavity FPI is used as a reference FPI (FPI-1) to generate a Vernier effect and the other FPI (FPI-2) is used as a sensing tip. Both FPIs are connected by a 3-dB coupler to form a paralleled structure. The FPI-1 was fabricated by fusion splicing a piece of hollow core fiber (HCF) between two sections of single-mode fibers (SMF), whereas FPI-2 was formed by fusion splicing a section of HCF between SMF and a piece of HCF with a slightly smaller inner diameter for sensing pressure. The gas pressure sensitivity was amplified from 4 nm/MPa of single FPI to 45.76 nm/MPa of paralleled FPIs with an amplification factor of 11.44 and a linearity of 99.9%. Compared with the traditional fiber gas pressure sensors, the proposed sensor showed great advantages in sensitivity, mechanical strength, cost, and temperature influence resistant, which has potential in adverse-circumstance gas pressure sensing.

Temperature insensitive air-cavity Fabry-Perot gas pressure sensor based on core-offset fusion of hollow-core fibers

2019 ◽  
Vol 298 ◽  
pp. 111589 ◽  
Author(s):  
Mao-qing Chen ◽  
He-ming Wei ◽  
Yong Zhao ◽  
Xiao-hua Lei ◽  
Sridhar Krishnaswamy
Keyword(s):  
Pressure Sensor ◽  
Gas Pressure ◽  
Hollow Core ◽  
Air Cavity ◽  
Fabry Perot
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