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Proceedings Paper

Periodically poled thick wafers of near stoichiometric LiTaO3
Author(s): David Eger; Ariel Bruner; Pnina Shaier; Arie Raizman; Abraham Englander; Pinhas Blau
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Paper Abstract

Near stoichiometric LiTaO3 is investigated for high power quasi-phase-matched optical frequency conversion applications due to its high optical damage threshold and low coercive field. In this work, near stoichiometric undoped and MgO-doped LiTaO3 wafers were characterized by transmission through cross-polarizes, x-ray diffraction and microscope inspection. Periodically inverted domain structures were fabricated in 1 to 4mm thick wafers, by electric field poling in vacuum. Efficiency values between 10% and 16% were obtained for direct frequency conversion of 1 μm to 4 μm light using optical parametric oscillations scheme. The resulting periodically poled structure quality and frequency conversion efficiency seems to be limited by crystalline imperfections of the wafers.

Paper Details

Date Published: 12 September 2003
PDF: 9 pages
Proc. SPIE 4972, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II, (12 September 2003); doi: 10.1117/12.478541
Show Author Affiliations
David Eger, Soreq Nuclear Research Ctr. (Israel)
Ariel Bruner, Soreq Nuclear Research Ctr. (Israel)
Pnina Shaier, Soreq Nuclear Research Ctr. (Israel)
Arie Raizman, Soreq Nuclear Research Ctr. (Israel)
Abraham Englander, Soreq Nuclear Research Ctr. (Israel)
Pinhas Blau, Soreq Nuclear Research Ctr. (Israel)

Published in SPIE Proceedings Vol. 4972:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II
Kenneth L. Schepler; Dennis D. Lowenthal; Jeffrey W. Pierce, Editor(s)

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