Experimental study on an interferometric strain sensor based on hollow-core photonic bandgap fiber for intrusion detection

2018 ◽  
Vol 428 ◽  
pp. 35-40 ◽  
Author(s):  
Adel Abdallah
Keyword(s):  
Experimental Study ◽  
Intrusion Detection ◽  
Photonic Bandgap ◽  
Strain Sensor ◽  
Hollow Core ◽  
Photonic Bandgap Fiber

scholarly journals Experimental Study on the Concept of Hollow-Core Photonic Bandgap Fiber Stethoscope

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
Adel Abdallah
Keyword(s):  
Experimental Study ◽  
Relative Phase ◽  
Fiber Optic ◽  
Photonic Bandgap ◽  
Single Mode ◽  
Hollow Core ◽  
Photonic Bandgap Fiber ◽  
Photonic Bandgap Fibers ◽  
Relative Phase Shift ◽  
Phase Generated Carrier

An experiment is proposed to show the feasibility of using hollow-core photonic bandgap fibers (HC-PBF) in the fiber-optic interferometric stethoscopes to generally improve the sensitivity and overcome the problems associated with the electronic stethoscopes. In the experiment, the HC-1550 is used as a measuring arm of an unbalanced Mach-Zehnder interferometer (MZI) and the conventional single-mode optical fiber (SMF) is used as an isolated reference arm. Detection and demodulation of the relative phase shift is performed passively using phase-generated carrier homodyne technique (PGC). The proposed results indicate the significance of using HC-PBFs in the future stethoscopes.

Environmentally Stable Fabry–PÉrot-Type Strain Sensor Based On Hollow-Core Photonic Bandgap Fiber

2008 ◽  
Vol 20 (4) ◽  
pp. 237-239 ◽  
Author(s):  
Qing Shi ◽  
Fuyun Lv ◽  
Zhi Wang ◽  
Long Jin ◽  
Juan Juan Hu ◽  
...  
Keyword(s):  
Type Strain ◽  
Photonic Bandgap ◽  
Strain Sensor ◽  
Hollow Core ◽  
Photonic Bandgap Fiber ◽  
Fabry Perot

High-order mode characteristics of 7-cell hollow-core photonic bandgap fiber

2021 ◽  
pp. 1-1
Author(s):  
Yong You ◽  
Huiyi Guo ◽  
Mao Feng ◽  
Baiwei Mao ◽  
Huimin Shi ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
High Order Mode ◽  
High Order ◽  
Hollow Core ◽  
Order Mode ◽  
Photonic Bandgap Fiber ◽  
Mode Characteristics

Tunable high-energy femtosecond soliton fiber laser based on hollow-core photonic bandgap fiber

2009 ◽  
Author(s):  
Pascal Dupriez ◽  
Frédéric Gérôme ◽  
Jonathan C. Knight ◽  
John Clowes ◽  
William J. Wadsworth
Keyword(s):  
Fiber Laser ◽  
Photonic Bandgap ◽  
High Energy ◽  
Hollow Core ◽  
Photonic Bandgap Fiber

Study of Birefringence and Mode Field for Hollow-Core Photonic Bandgap Fiber

2014 ◽  
Vol 609-610 ◽  
pp. 324-329
Author(s):  
Li Shuang Feng ◽  
Wen Shuai Song ◽  
Xiao Yuan Ren
Keyword(s):  
Field Distribution ◽  
Photonic Bandgap ◽  
Surface Mode ◽  
Hollow Core ◽  
The Finite Element Method ◽  
Core Mode ◽  
Photonic Bandgap Fiber ◽  
Mode Field ◽  
Air Core ◽  
Polarization Maintaining

Since the Appearance of Hollow-Core Photonic Bandgap Fiber (HC-PBF), it was Widely Concerned for its Excellent Characteristics. in Order to Study the Characteristics of the HC-PBF that can be Used in Resonator Fiber Optic Gyros (R-Fogs), the Model Structure of a Polarization-Maintaining HC-PBF was Built and its Performance was Simulated by Using the Finite Element Method (FEM). its Mode Field Distribution and Birefringence Characteristics were Obtained. the Influences of the Air Core and Cladding Structures on the Mode Field Distribution and Birefringence were Simulated and Analyzed Further. the Result Showed that there are both Core Mode and Surface Mode in the Structure we Built. by Adding Scattering Points into the Fiber Core, the Surface Mode can be Significantly Suppressed. by Matching the Size of Core and Air Holes around the Core, a Birefringence up to 8*10-4 were Obtained.

scholarly journals Combining Hollow Core Photonic Crystal Fibers with Multimode, Solid Core Fiber Couplers through Arc Fusion Splicing for the Miniaturization of Nonlinear Spectroscopy Sensing Devices

Fibers ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 77 ◽  
Author(s):  
Hanna Stawska ◽  
Maciej Popenda ◽  
Elżbieta Bereś-Pawlik
Keyword(s):  
Photonic Bandgap ◽  
Average Power ◽  
Fluorescence Emission ◽  
Nonlinear Spectroscopy ◽  
Fluorescence Emission Spectrum ◽  
Solid Core ◽  
Hollow Core ◽  
Fluorescence Excitation ◽  
Photonic Bandgap Fiber ◽  
Sensing Applications

The presence of fiber optic devices, such as couplers or wavelength division multiplexers, based on hollow-core fibers (HCFs) is still rather uncommon, while such devices can be imagined to greatly increase the potential of HCFs for different applications, such as sensing, nonlinear optics, etc. In this paper, we present a combination of a standard, multimode fiber (MMF) optic coupler with a hollow core photonic bandgap fiber through arc fusion splicing and its application for the purpose of multiphoton spectroscopy. The presented splicing method is of high affordability due to the low cost of arc fusion splicers, and the measured splicing loss (SL) of the HCF-MMF splice is as low as (0.32 ± 0.1) dB, while the splice itself is durable enough to withstand a bending radius (rbend) of 1.8 cm. This resulted in a hybrid between the hollow core photonic bandgap fiber (HCPBF) and MMF coupler, delivering 20 mW of average power and 250-fs short laser pulses to the sample, which was good enough to test the proposed sensor setup in a simple, proof-of-concept multiphoton fluorescence excitation-detection experiment, allowing the successful measurement of the fluorescence emission spectrum of 10−5 M fluorescein solution. In our opinion, the presented results indicate the possibility of creating multi-purpose HCF setups, which would excel in various types of sensing applications.

scholarly journals Optoelectronic oscillator incorporating hollow-core photonic bandgap fiber

2017 ◽  
Vol 42 (13) ◽  
pp. 2647 ◽  
Author(s):  
U. S. Mutugala ◽  
J. Kim ◽  
T. D. Bradley ◽  
N. V. Wheeler ◽  
S. R. Sandoghchi ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
Hollow Core ◽  
Optoelectronic Oscillator ◽  
Photonic Bandgap Fiber

scholarly journals 7-cell hollow-core photonic bandgap fiber with broad spectral bandwidth and low loss

2019 ◽  
Vol 27 (8) ◽  
pp. 11608 ◽  
Author(s):  
Xin Zhang ◽  
Shoufei Gao ◽  
Yingying Wang ◽  
Wei Ding ◽  
Xiaocong Wang ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
Spectral Bandwidth ◽  
Hollow Core ◽  
Low Loss ◽  
Photonic Bandgap Fiber

scholarly journals Compression of picosecond optical pulses in tapered hollow-core photonic bandgap fiber

2008 ◽  
Author(s):  
K. Cook ◽  
M.G. Welch ◽  
F. Gerome ◽  
A.K. George ◽  
W.J. Wadsworth ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
Hollow Core ◽  
Optical Pulses ◽  
Photonic Bandgap Fiber
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