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MgO:LiNbO _{3} Waveguide Quasi-Phase-Matched Second-Harmonic Generation Devices Fabricated by Two-Step Voltage Application Under UV Light

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4 Author(s)
Fujimura, M. ; Grad. Sch. Eng., Osaka Univ., Suita, Japan ; Kitado, E. ; Inoue, T. ; Suhara, T.

A new simple method for formation of MgO:LiNbO3 domain inverted gratings is demonstrated. Periodic domain structure was formed on -z face by first voltage application under ultraviolet (UV) light with periodic intensity distribution. Following second voltage application without UV resulted in periodic structure continuing through crystal thickness. A waveguide quasi-phase-matched (QPM) nonlinear-optic device was fabricated by the method and characterized. The device performance agreed with approximate theoretical prediction, and high applicability of the method to QPM device fabrication was demonstrated.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 18 )