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Single is better than double: theoretical and experimental comparison between two thermal poling configurations of optical fibers

par De Lucia, Federico ;Bannerman, Rex;Englebert, Nicolas ;Nunez Velazquez, Martin Miguel Angel;Leo, François ;Gates, James;Gorza, Simon-Pierre ;Sahu, Jayanta;Sazio, Pier John Anthony
Référence Optics express, 27, 20, page (27761)
Publication Publié, 2019-09

Article révisé par les pairs

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Résumé :

Thermal poling, a technique to create permanently effective second-order susceptibility in silica optical fibers, has a suite of applications including frequency conversion and mixing for high harmonic generation and phase sensitive amplification, optical switching and modulation, and polarization-entangled photon pair generation. In this work, we compare both theoretically and experimentally two different electrode configurations for poling optical fibers, namely double-anode and single-anode, for two different geometries of the cladding holes. This analysis reveals that the single-anode configuration is optimal, both for the absolute value of effective χ(2) created in the fiber core, and for the simplification of the fiber fabrication process.