2010 Fiscal Year Final Research Report

Fabrication of domain inverted structure in MgO:LiNbO3 by voltage application under ultraviolet light illumination and application to optic devices

Research Project

Project/Area Number	20360031
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Research Field	Applied optics/Quantum optical engineering
Research Institution	Osaka University
Principal Investigator	FUJIMURA Masatoshi Osaka University, 工学研究科, 准教授 (80263218)
Co-Investigator(Kenkyū-buntansha)	SUHARA Toshiaki 大阪大学, 工学研究科, 教授 (90116054)
Project Period (FY)	2008 – 2010
Keywords	非線形光学 / 分極反転 / 擬似位相整合 / 光導波路 / 波長変換 / 光エレクトロニクス / ニオブ酸リチウム
Research Abstract	A new simple method for formation of MgO:LiNbO_3 domain inverted gratings was proposed and examined. 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 fairly well with theoretical prediction, and high applicability of the method to QPM device fabrication was demonstrated.

(5 results)