scholarly journals Modified phase-generated carrier demodulation of fiber-optic interferometric ultrasound sensors

2021 ◽  
Author(s):  
Farzia Karim ◽  
Yupeng Zhu ◽  
Ming Han
Keyword(s):  
Fiber Optic ◽  
Phase Generated Carrier

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.

Physical Mechanism and Solution of Aliasing in Phase Generated Carrier Modulation-Demodulation of Interferometric Fiber-Optic Hydrophone

2008 ◽  
Vol 28 (1) ◽  
pp. 92-98 ◽  
Author(s):  
王泽锋 Wang Zefeng ◽  
胡永明 Hu Yongming ◽  
孟洲 Meng Zhou ◽  
倪明 Ni Mini ◽  
熊水东 Xiong Shuidong
Keyword(s):  
Fiber Optic ◽  
Physical Mechanism ◽  
Phase Generated Carrier

Impact of Relative Intensity Noise on Fiber Optic Hydrophone’s Phase Generated Carrier Scheme

2008 ◽  
Vol 35 (5) ◽  
pp. 716-721 ◽  
Author(s):  
梁迅 Liang Xun ◽  
熊水东 Xiong Shuidong ◽  
胡永明 Hu Yongming ◽  
姚琼 Yao Qiong ◽  
马丽娜 Ma Lina
Keyword(s):  
Relative Intensity ◽  
Fiber Optic ◽  
Relative Intensity Noise ◽  
Intensity Noise ◽  
Phase Generated Carrier

Differential-self-multiplying-integrate phase generated carrier method for fiber optic sensors

2014 ◽  
Author(s):  
Wentao Zhang ◽  
Hao Xia ◽  
Cunzhi Pan ◽  
Wenzhu Huang ◽  
Fang Li
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Phase Generated Carrier
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