The modal distribution of a novel elliptical hollow optical fiber is experimentally and numerically characterized. The fiber has a central elliptical air hole surrounded by a germanosilicate lanceolate ring core. Experiments reveal that the fiber behaves like a dual core waveguide and it is found that the differential group delay of each core decreases with wavelength with a PMD coefficient slope of similar to 10(-2) ps/m/THz. Experimental results are also compared with numerical modeling based on scanning electron microscopy images
Characterization of a novel dual-core elliptical hollow optical fiber with wavelength decreasing differential group delay
SCHENATO, LUCA;PALMIERI, LUCA;SASSI, RAFFAELE;GALTAROSSA, ANDREA;
2010
Abstract
The modal distribution of a novel elliptical hollow optical fiber is experimentally and numerically characterized. The fiber has a central elliptical air hole surrounded by a germanosilicate lanceolate ring core. Experiments reveal that the fiber behaves like a dual core waveguide and it is found that the differential group delay of each core decreases with wavelength with a PMD coefficient slope of similar to 10(-2) ps/m/THz. Experimental results are also compared with numerical modeling based on scanning electron microscopy images
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