Optimization of Modal and Material Dispersions in High-Bandwidth Graded-Index Polymer Optical Fibers

Author(s):  
Eisuke Nihei ◽  
T. Ishigure ◽  
Yasuhiro Koike
1992 ◽  
Vol 247 ◽  
Author(s):  
Yasuhiro Koike

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.


1998 ◽  
Vol 531 ◽  
Author(s):  
L. L. Blyler ◽  
T. Salamon ◽  
C. Ronaghan ◽  
C. S. Koeppen

AbstractNewly developed low loss, graded-index polymer optical fibers (GI-POF) are being investigated as high bandwidth media for data transmission in local area networks and for interconnection of large telecommunications and computer systems. These fibers are fabricated by distributing refractive index-raising dopants to form a core profile in a transparent glassy polymer fiber. The long term reliability of the GI-POF depends upon the degree to which the dopant remains immobilized in the polymer glass in service environments. This paper presents a method for assessing the diffusion kinetics of dopants in polymer optical fibers and for relating these measurements to GI-POF profile stability through numerical simulation. Simulated and measured index profile changes are compared to validate the approach.


Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5049
Author(s):  
Agnese Coscetta ◽  
Ester Catalano ◽  
Enis Cerri ◽  
Ricardo Oliveira ◽  
Lucia Bilro ◽  
...  

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.


2013 ◽  
Vol 21 (20) ◽  
pp. 24254 ◽  
Author(s):  
M. Asunción Illarramendi ◽  
Jon Arrue ◽  
Igor Ayesta ◽  
Felipe Jiménez ◽  
Joseba Zubia ◽  
...  

2008 ◽  
Vol 47 (27) ◽  
pp. 4907 ◽  
Author(s):  
Li-Wen Chen ◽  
Hsun-Heng Tsai ◽  
Yi-Long Ke ◽  
Yung-Chuan Chen

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