Intrinsic single-mode fiber-optic pressure sensor

2001 ◽  
Vol 13 (11) ◽  
pp. 1212-1214 ◽  
Author(s):  
Yang Zhao ◽  
F. Ansari
Keyword(s):  
Pressure Sensor ◽  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber

A Micro Total Reflective Extrinsic Fabry-Parot Interferometric Fiber Optic Pressure Sensor for Medical Application

2003 ◽  
Vol 17 (08n09) ◽  
pp. 1199-1204 ◽  
Author(s):  
Jin Seok Heo ◽  
Jung Ju Lee ◽  
Jeong Ok Lim
Keyword(s):  
Thin Film ◽  
Pressure Sensor ◽  
Output Signal ◽  
Fiber Optic ◽  
Medical Instrument ◽  
Applied Pressure ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Optic Sensor ◽  
Optic Sensor

This paper presents the newly designed fiber optic pressure sensor using the TR-EFPI fiber optic sensor with a single mode fiber (SMF), and a micro fabricated diaphragm. The output signal of TR-EFPI fiber optic pressure sensor can be easily analyzed based on the spliced loss based model and large deflection theory. Then, we can design the optimal length between the thin film of diaphragm and the end of single mode fiber. From these analyses, the relation between the applied pressure and the output signal of TR-EFPI fiber optic sensor can be simulated. Based on these processes, we can design the TR-EFPI fiber optic pressure sensor measuring various conditions by changing the size of thin film. As the newly designed TR-EFPI fiber optic pressure sensor can be fabricated in small size and has good sensitivity, it can be applied to medical instrument like pressure sensor and force sensor for catheter and minimally invasive surgery robot for safer surgery.

Identification of trespasser from the signatures of buried single mode fiber optic sensor cable

2015 ◽  
Author(s):  
Preetam Suman ◽  
Pallavi Gupta ◽  
Philip B. Kassey ◽  
Neera Saxena ◽  
Yogesh Choudhary ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Optic Sensor ◽  
Optic Sensor

Fiber-optic Michelson interferometer based on α-Fe2O3/ZrO2 sensing membrane and its application in trace fluoride-ion detection

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zizheng Yue ◽  
Wenlin Feng
Keyword(s):  
Silver Film ◽  
Fiber Optic ◽  
Michelson Interferometer ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Ion Concentration ◽  
Fluoride Ion ◽  
Ion Detection ◽  
Core Fiber ◽  
Sensing Membrane

Abstract In this work, a fiber-optic fluoride-ion-detection Michelson interferometer based on the thin-core fiber (TCF) and no-core fiber (NCF) coated with α-Fe2O3/ZrO2 sensing film is proposed and presented. The single-mode fiber (SMF) is spliced with the TCF and NCF in turn, and a waist-enlarged taper is spliced between them. Then, a silver film is plated on the end face of NCF to enhance the reflection. After the absorption of fluoride ion by the sensing film, the effective refractive index (RI) of the coated cladding will change, which leads to the regular red shift of the interference dip with the increasing fluoride-ion concentration. Thus, the fluoride-ion concentrations can be determined according to the corresponding dip wavelength shifts. The results show that the sensor has an excellent linear response (R 2 = 0.995) with good sensitivity (8.970 nm/ppm) when the fluoride-ion concentration is in the range of 0–1.5 ppm. The response time is about 15 s. The sensor has the advantage of good selectivity, good temperature and pH stabilities, and can be applied to detect fluoride ion effectively.

Improved Sensitivity Distributed Pressure Sensor Using Off-Axis Coated Single Mode Fiber

2020 ◽  
Author(s):  
N.A. Mustaffa ◽  
M.R. Mokhtar ◽  
M.F. Azman ◽  
Z. Yusoff ◽  
H.A. Abdul Rashid ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Distributed Pressure

Pigtailing of solid state single-mode fiber optic 1xN switches

1998 ◽  
Author(s):  
Ning Zhu ◽  
Peter DeDobbelaere ◽  
Anthony J. Ticknor ◽  
John I. Thackara ◽  
Janelle M. Freeman ◽  
...  
Keyword(s):  
Solid State ◽  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber

Influence of single mode fiber bending on fiber optic gyroscope scale factor stability

2016 ◽  
Vol 45 (1) ◽  
pp. 0122001
Author(s):  
谢良平 Xie Liangping ◽  
李 瑞 Li Rui ◽  
张 斌 Zhang Bin ◽  
王京献 Wang Jingxian ◽  
张春熹 Zhang Chunxi
Keyword(s):  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Scale Factor ◽  
Fiber Optic Gyroscope

Single-mode fiber-optic polarizer

1980 ◽  
Vol 5 (11) ◽  
pp. 479 ◽  
Author(s):  
R. A. Bergh ◽  
H. C. Lefevre ◽  
H. J. Shaw
Keyword(s):  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber
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