Power flow equation analysis of graded-index polymer optical fibers

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.

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

Sensors ◽

10.3390/s21155049 ◽

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.

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Enhancement of Brillouin Scattering Signal in Perfluorinated Graded-Index Polymer Optical Fibers

Applied Sciences ◽

10.3390/app2010046 ◽

2012 ◽

Vol 2 (1) ◽

pp. 46-60 ◽

Cited By ~ 1

Author(s):

Yosuke Mizuno ◽

Kentaro Nakamura

Keyword(s):

Optical Fibers ◽

Brillouin Scattering ◽

Graded Index ◽

Polymer Optical Fibers ◽

Scattering Signal

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High-speed (11 Gbit/s) data transmission using perfluorinated graded-index polymer optical fibers for short interconnects (<100 m)

IEEE Photonics Technology Letters ◽

10.1109/68.826936 ◽

2000 ◽

Vol 12 (3) ◽

pp. 347-349 ◽

Cited By ~ 51

Author(s):

G. Giaretta ◽

W. White ◽

M. Wegmuller ◽

T. Onishi

Keyword(s):

Optical Fibers ◽

Data Transmission ◽

High Speed ◽

Graded Index ◽

Polymer Optical Fibers

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EQUILIBRIUM MODE DISTRIBUTION IN W-TYPE GLASS OPTICAL FIBERS

Contemporary Materials ◽

10.7251/comen1401051s ◽

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.

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