High Performance Graded Index Polymer Optical Fibers

1998 ◽  
Author(s):  
Anthony F. Garito
Keyword(s):  
Optical Fibers ◽  
High Performance ◽  
Graded Index ◽  
Polymer Optical Fibers

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 Homogeneous Distribution of Polymerizable Coumarin Dyes for Active Few Mode POF

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1975
Author(s):  
Florian Jakobs ◽  
Kristoffer Harms ◽  
Jana Kielhorn ◽  
Daniel Zaremba ◽  
Pen Yiao Ang ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Optical Fibers ◽  
High Performance ◽  
Polymer Chains ◽  
Size Exclusion ◽  
Polymerization Process ◽  
Homogeneous Distribution ◽  
Exclusion Chromatography ◽  
Polymer Optical Fibers ◽  
Coumarin Dyes

For most kinds of active polymer optical fibers, a homogeneous distribution of dye molecules over the entire fiber length and cross section is required. In this study, chemical bonding of dyes to poly(methyl methacrylate) (PMMA) by copolymerization is achieved within the polymerization process instead of dissolving the dyes in the monomers. In combination with an improved fabrication mechanism, this leads to homogeneous dye distribution within the preforms. A method for proving the integration of the dyes into the polymer chains has been developed using high-performance liquid chromatography (HPLC) and size exclusion chromatography (SEC). Prestructured core-cladding preforms with dye-doped poly(cylohexyl methacrylate-co-methyl methacrylate)-core have been prepared with the Teflon string technique and were heat-drawn to few mode fibers.

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

Graded-Index and Single-Mode Polymer Optical Fibers

1992 ◽  
Vol 247 ◽  
Author(s):  
Yasuhiro Koike
Keyword(s):  
Mechanical Properties ◽  
Optical Fibers ◽  
Single Mode ◽  
Polymer Optical Fiber ◽  
Core Diameter ◽  
Graded Index ◽  
The Core ◽  
High Bandwidth ◽  
Polymer Optical Fibers ◽  
First Time

ABSTRACTHigh-bandwidth graded-index (GI) polymer optical fiber (POF) and single-mode POF with good mechanical properties were successfully obtained by our interfacial-gel polymerization technique. The bandwidth of the GI POF is about 1 GHz · km which is two hundred times larger than that of the conventional step-index (SI) POF. The minimum attenuation of transmission is 56 dB/km at 688-nm wavelength and 94 dB/km at 780-nm wavelength. The single-mode POF in which the core diameter was 3–15 μ m and the attenuation of transmission was 200 dB/km at 652-nm wavelength was successfully obtained for the first time.

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