Polarization reversal and domain grating in flux-grown KTiOPO4 crystals with variable potassium stoichiometry

G. Rosenman*, P. Urenski, A. Arie, M. Roth, N. Angert, A. Skliar, M. Tseitlin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A significant decrease is observed in the dielectric dispersion, conductivity, coercive and internal fields of KTiOPO4 crystals grown with relatively high potassium concentration in the flux. A periodic domain structure with a period of 24.7 μm was fabricated on a 10 mm long crystal by electric field poling. Whereas standard flux-grown KTiOPO4 crystals can be periodically poled only at low temperatures (near 170 K), the periodic poling in this case was successfully performed near room temperature at a much lower electric field. Quasiphase-matched frequency doubling of 1550 nm radiation was achieved with the poled crystal.

Original languageEnglish
Pages (from-to)3798-3800
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number25
DOIs
StatePublished - 19 Jun 2000

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