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

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

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

scholarly journals Deleterious processes of a diode-pumped cesium vapor hollow-core photonic-crystal fiber laser

2016 ◽  
Vol 4 ◽  
Author(s):  
Guofei An ◽  
You Wang ◽  
Juhong Han ◽  
He Cai ◽  
Zhigang Jiang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Cesium Vapor ◽  
Hollow Core ◽  
Penning Ionization ◽  
Photonic Bandgap Fiber ◽  
Crystal Fiber ◽  
Energy Pooling ◽  
Glass Cell ◽  
Diode Pumped

A diode-pumped alkali laser (DPAL) provides the significant promise for high-powered performances. In this paper, a mathematical model is introduced for examination of the kinetic processes of a diode-pumped cesium vapor hollow-core photonic-crystal fiber (HC-PCF) laser, in which the cesium vapor is filled in the center hole of a photonic-bandgap fiber instead of a glass cell. The influence of deleterious processes including energy pooling, photo-ionization, and Penning ionization on the physical features of a fiber DPAL is studied in this report. It has been theoretically demonstrated that the deleterious processes cannot be ignored in a high-powered fiber-DPAL system.

scholarly journals A Highly Sensitive, Polarization Maintaining Photonic Crystal Fiber Sensor Operating in the THz Regime

Photonics ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 40 ◽  
Author(s):  
Sohel Rana ◽  
Nirmala Kandadai ◽  
Harish Subbaraman
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
High Sensitivity ◽  
Relative Sensitivity ◽  
Computational Technique ◽  
The Finite Element Method ◽  
High Birefringence ◽  
Crystal Fiber ◽  
Highly Sensitive ◽  
Imaging And Spectroscopy

In this paper, a high sensitivity, polarization preserving photonic crystal fiber (PCF), based on circular air holes for sensing in the terahertz (THz) band, is presented. The finite element method, a practical and precise computational technique for describing the interactions between light and matter, is used to compute the modal properties of the designed fiber. For the designed PCF, comprising of circular air holes in both the cladding and in the porous core, a relative sensitivity of 73.5% and a high birefringence of 0.013 are achieved at 1.6 THz. The all circular air-hole structure, owing to its simplicity and compatibility with the current fiber draw technique for PCF fabrication, can be realized practically. It is anticipated that the designed fiber can be employed in applications such as detection of biological samples and toxic chemicals, imaging, and spectroscopy.

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.

Sensitivity-Enhanced Pressure Sensor With Hollow-Core Photonic Crystal Fiber

2014 ◽  
Vol 32 (23) ◽  
pp. 4637-4641 ◽  
Author(s):  
Maoxiang Hou ◽  
Ying Wang ◽  
Shuhui Liu ◽  
Jiangtao Guo ◽  
Zhihua Li ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Pressure Sensor ◽  
Hollow Core ◽  
Crystal Fiber
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