Periodically poled thick wafers of near stoichiometric LiTaO<sub>3</sub>

David Eger; Ariel Bruner; Pnina Shaier; Arie Raizman; Abraham Englander; Pinhas Blau

doi:10.1117/12.478541

12 September 2003 Periodically poled thick wafers of near stoichiometric LiTaO₃

David Eger, Ariel Bruner, Pnina Shaier, Arie Raizman, Abraham Englander, Pinhas Blau

Proceedings Volume 4972, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II; (2003) https://doi.org/10.1117/12.478541
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

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.

Citation Download Citation

David Eger, Ariel Bruner, Pnina Shaier, Arie Raizman, Abraham Englander, and Pinhas Blau "Periodically poled thick wafers of near stoichiometric LiTaO₃", Proc. SPIE 4972, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II, (12 September 2003); https://doi.org/10.1117/12.478541

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