Poled-glass devices: Influence of surfaces and interfaces

Jacob Fage-Pedersen, Rune Shim Jacobsen, Martin Kristensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Devices in periodically poled glass must have a large periodic variation of the built-in field. We show that the periodic variation can be severely degraded by charge dynamics taking place at the external (glass–air) interface or at internal (glass–glass) interfaces if the interfaces have imperfections. The problem of the external interface can be solved by poling with periodic electrodes that are buried inside the glass, in many cases improving the poling efficiency dramatically. Internal interfaces can be addressed by the proper choice of waveguide design and processing. Without poling the device, one can reveal the existence of imperfect interfaces by use of electric field induced second-harmonic generation.
Original languageEnglish
JournalJOURNAL OF THE OPTICAL SOCIETY OF AMERICA B
Volume24
Issue number5
Pages (from-to)1075-1079
ISSN0740-3224
DOIs
Publication statusPublished - 2007

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