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Study of thermally poled fibers with a two-dimensional model
KTH, School of Engineering Sciences (SCI), Applied Physics. Acreo AB, Kista, Sweden .
2014 (English)In: Optics Express, ISSN 1094-4087, Vol. 22, no 15, 17700-17715 p.Article in journal (Refereed) Published
Abstract [en]

A two-dimensional (2D) numerical model is implemented to describe the movement of ions under thermal poling for the specific case of optical fibers. Three types of cations are considered (representing Na+, Li+ and H3O+) of different mobility values. A cross-sectional map of the carrier concentration is obtained as a function of time. The role of the various cations is investigated. The assumptions of the model are validated by comparing the predictions to experimental data of the time evolution of the nonlinearity induced. A variational analysis of poling parameters including temperature, poling voltage, sign of the bias potential and initial ionic concentrations is performed for a particular fiber geometry. The analysis allows identifying the impact of these parameters on the induced second-order nonlinearity in poled fibers.

Place, publisher, year, edition, pages
2014. Vol. 22, no 15, 17700-17715 p.
Keyword [en]
Fused-Silica, Electric-Field, 2nd-Harmonic Generation, 2nd-Order Nonlinearity, Depletion Region, Optical-Fibers, Time-Evolution, Glass, Temperature, Dynamics
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Other Physics Topics
URN: urn:nbn:se:kth:diva-151350DOI: 10.1364/OE.22.017700ISI: 000340685600011ScopusID: 2-s2.0-84905383245OAI: diva2:748350
Swedish Research Council

QC 20140919

Available from: 2014-09-19 Created: 2014-09-18 Last updated: 2014-09-19Bibliographically approved

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Margulis, Walter
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