Cable, Fiber Optic, Multi-Mode, 200/230/500 μm, Step Index, Tight Buffer

2021 ◽  
Author(s):  
Keyword(s):  
Fiber Optic ◽  
Step Index ◽  
Multi Mode

A Step-Index Multimode Fiber-Optic Microbend Displacement Sensor Wavelength Dependent Loss

2019 ◽  
pp. 47-60
Author(s):  
Sami D. Alaruri
Keyword(s):  
Optical Fibers ◽  
Fiber Optic ◽  
Transmission Loss ◽  
Wavelength Dependence ◽  
Fiber Optic Sensors ◽  
Fused Silica ◽  
Displacement Sensor ◽  
Sensor Output ◽  
Core Diameter ◽  
Step Index

In this chapter, the wavelength dependence of bend loss in a step-index multimode optical fiber (100 µm core diameter; fused silica) was investigated for fiber bend radii ranging between 2.0 and 4.5 mm using six laser excitation wavelengths, namely, 337.1, 470, 590, 632.8, 750, and 810 nm. The results obtained from fitting the bend loss measurements to Kao's model and utilizing MATLAB® indicate that bend loss is wavelength dependent and transmission loss in multimode optical fibers increases with the decrease in the fiber bend radius. Furthermore, the response of a microbend fiber-optic displacement sensor was characterized at 337.1, 470, 632.8, 750, and 810 nm. Measurements obtained from the microbend sensor indicate that the sensor output power is linear with the applied displacement and the sensor output is wavelength dependent. Lastly, references for industrial and biomedical applications of microbend fiber-optic sensors are provided. Finally, a brief description for the transmission loss mechanisms in optical fibers is given.

Two-dimensional fiber-optic vector vibroscope using only one multi-mode tilted fiber grating

2012 ◽  
Author(s):  
Tuan Guo ◽  
Yang Ran ◽  
Yannan Tan ◽  
Shuai Gao ◽  
Lipeng Sun ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Fiber Grating ◽  
Two Dimensional ◽  
Multi Mode
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