Investigations on Standard Optical Fiber and Photonic Crystal Fiber based Fiber Optic Sensors

2021 ◽  
Vol 7 (8) ◽  
2020 ◽  
Author(s):  
Mauricio Salazar Sicacha ◽  
Vladimir (or Uladzimir) Petrovich Minkovich ◽  
Alexander B. Sotsky ◽  
Artur V. Shilov ◽  
Luidmila I. Sotskaya

Abstract The interaction effect of the fundamental mode of a photonic crystal fiber (PCF) with a thin-film absorbing coating deposited on a surface of a fiber cladding on the optical transmission of the PCF is studied. It is shown that the transmission has a quasi-periodic spectrum that is determined either by a resonance coupling between the leaky fundamental PCF mode and leaky modes of the coating, or between the leaky fundamental PCF mode and cladding modes localized between PCF air channels and the coating. Examples are presented of using this effect for fiber-optic sensors of refractive index, pressure, and for sensing an adsorption layer of ammonia molecules deposited on a coating surface contacting with air.


2016 ◽  
Vol 34 (24) ◽  
pp. 5616-5619 ◽  
Author(s):  
Bing Sun ◽  
Wei Wei ◽  
Chao Wang ◽  
Changrui Liao ◽  
Jing Xu ◽  
...  

2017 ◽  
Vol 238 ◽  
pp. 518-524 ◽  
Author(s):  
Jinde Yin ◽  
Shuangchen Ruan ◽  
Tiegen Liu ◽  
Junfeng Jiang ◽  
Shuang Wang ◽  
...  

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 128 ◽  
Author(s):  
Jingxuan Yang ◽  
Hu Zhang ◽  
Xiaoguang Zhang ◽  
Hui Li ◽  
Lixia Xi

Orbital angular momentum modes in optical fibers have polarization mode dispersion. The relationship between polarization mode dispersion and the birefringence vector can be deduced using an optical fiber dynamic equation. First, a mathematical model was established to formulate mode dispersion caused by stress-induced birefringence. Second, in the stress-induced birefringence simulation model, the finite element method was used to analyze the transmission characteristics of the hollow-core circular photonic crystal fiber. Finally, mode dispersion caused by stress-induced birefringence was obtained using theoretical derivation and simulation analyses. The results showed that the new fiber type has good transmission characteristics and strong stress sensitivity, which provide key theoretical support for optimizing the structural parameters of optical fiber and designing stress sensors.


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