Power flow equation analysis of graded-index polymer optical fibers

2009 ◽  
Author(s):  
Kazuma Nehashi ◽  
Yasuhiro Koike
Keyword(s):  
Optical Fibers ◽  
Power Flow ◽  
Flow Equation ◽  
Graded Index ◽  
Equation Analysis ◽  
Polymer Optical Fibers

scholarly journals Theoretical Investigation of the Influence of Wavelength on the Bandwidth in Multimode W-Type Plastic Optical Fibers with Graded-Index Core Distribution

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3973
Author(s):  
Ana Simović ◽  
Svetislav Savović ◽  
Branko Drljača ◽  
Alexandar Djordjevich ◽  
Rui Min
Keyword(s):  
Optical Fibers ◽  
Power Flow ◽  
Flow Equation ◽  
Time Dependent ◽  
Refractive Indices ◽  
Modal Dispersion ◽  
Graded Index ◽  
Cladding Layer ◽  
Plastic Optical Fibers ◽  
Outer Cladding

The bandwidth of multimode W-type plastic optical fibers (POFs) with graded-index (GI) core distribution is investigated by solving the time-dependent power flow equation. The multimode W-type GI POF is designed from a multimode single-clad (SC) GI POF fiber upon modification of the cladding layer of the latter. Results show how the bandwidth in W-type GI POFs can be enhanced by increasing the wavelength for different widths of the intermediate layer and refractive indices of the outer cladding. These fibers are characterized according to their apparent efficiency to reduce modal dispersion and increase bandwidth.

scholarly journals Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5049
Author(s):  
Agnese Coscetta ◽  
Ester Catalano ◽  
Enis Cerri ◽  
Ricardo Oliveira ◽  
Lucia Bilro ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Time Domain ◽  
Rayleigh Scattering ◽  
Cost Effective ◽  
Time Domain Reflectometry ◽  
Dynamic Strain ◽  
Strain Measurements ◽  
Graded Index ◽  
Optical Time ◽  
Polymer Optical Fibers

We demonstrate the use of a graded-index perfluorinated optical fiber (GI-POF) for distributed static and dynamic strain measurements based on Rayleigh scattering. The system is based on an amplitude-based phase-sensitive Optical Time-Domain Reflectometry (ϕ-OTDR) configuration, operated at the unconventional wavelength of 850 nm. Static strain measurements have been carried out at a spatial resolution of 4 m and for a strain up to 3.5% by exploiting the increase of the backscatter Rayleigh coefficient consequent to the application of a tensile strain, while vibration/acoustic measurements have been demonstrated for a sampling frequency up to 833 Hz by exploiting the vibration-induced changes in the backscatter Rayleigh intensity time-domain traces arising from coherent interference within the pulse. The reported tests demonstrate that polymer optical fibers can be used for cost-effective multiparameter sensing.

scholarly journals EQUILIBRIUM MODE DISTRIBUTION IN W-TYPE GLASS OPTICAL FIBERS

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Svetislav Savović ◽  
Ana Simović ◽  
Aleksandar Djordjevich ◽  
Aco Janićijević
Keyword(s):  
Optical Fibers ◽  
Coupling Strength ◽  
Intermediate Layer ◽  
Power Flow ◽  
Flow Equation ◽  
Coupling Length ◽  
Modal Dispersion ◽  
Equilibrium Mode ◽  
Bending Loss

Power flow equation is used to calculate equilibrium mode distribution in W-type glass optical fibers. It has been shown how the coupling length for achieving the equilibrium mode distribution in W-type glass optical fibers varies with the depth and width of the intermediate layer and coupling strength for different widths of launch beam distribution. W-type optical fibers have shown effectiveness in reducing modal dispersion and bending loss.

scholarly journals Amplified spontaneous emission in graded-index polymer optical fibers: theory and experiment

2013 ◽  
Vol 21 (20) ◽  
pp. 24254 ◽  
Author(s):  
M. Asunción Illarramendi ◽  
Jon Arrue ◽  
Igor Ayesta ◽  
Felipe Jiménez ◽  
Joseba Zubia ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Optical Fibers ◽  
Amplified Spontaneous Emission ◽  
Graded Index ◽  
Polymer Optical Fibers ◽  
Theory And Experiment

Power losses in deformed graded-index polymer optical fibers

2008 ◽  
Vol 47 (27) ◽  
pp. 4907 ◽  
Author(s):  
Li-Wen Chen ◽  
Hsun-Heng Tsai ◽  
Yi-Long Ke ◽  
Yung-Chuan Chen
Keyword(s):  
Optical Fibers ◽  
Power Losses ◽  
Graded Index ◽  
Polymer Optical Fibers
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