Periodic poling with a micrometer-range period in thin-film lithium niobate on insulator

Mohammadreza Younesi, Reinhard Geiss, Shakiba Rajaee, Frank Setzpfandt, Yen Hung Chen, Thomas Pertsch

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We present our experimental results on electric field poling of X-cut thin-film lithium niobate with poling periods of 1–4 µm. We used polarization contrast microscopy combined with digital image processing to study the impact of the experimental parameters of the poling process such as electric field strength, poling pulse duration, and layout of metal electrodes on the domain growth and quality of resulting poling patterns. High-quality results with excellent homogeneity of the domain pattern on large areas [i.e., 16 µm along the domain (z axis) and millimeter long domain gratings along the y axis with a period down to 1 µm] allow for the integration of numerous devices and structures.

Original languageEnglish
Pages (from-to)685-691
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Volume38
Issue number3
DOIs
StatePublished - 1 Mar 2021

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