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

A new simple method for formation of MgO:LiNbO 3 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 peri...

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Bibliographic Details
Published in:IEEE photonics technology letters 2011-09, Vol.23 (18), p.1313-1315
Main Authors: Fujimura, M., Kitado, E., Inoue, T., Suhara, T.
Format: Article
Language:English
Subjects:
Crystals
Domain inversion
Electrodes
Face
Gratings
hbox{MgO:LiNbO}_{3}
integrated optics
Lighting
Lithium niobate
nonlinear optics
Optical waveguides
quasi-phase-matching
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Summary:A new simple method for formation of MgO:LiNbO 3 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.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2011.2160531