擬似位相整合（QPM）周波数変換デバイス
バルクタイプ、導波路タイプ
材料： MgOドープCLN（一致溶融組成ニオブ酸リチウム)
　　　　MgOドープSLN（定比組式ニオブ酸リチウム）
用途： 高効率波長変換用途
通信帯用波長変換、緑色光発生、青色光発生、　　　　OPO、OPG

（2006）
J.Saikawa, M.Fuji, H.Ishizuki and T.Taira, “High-energy, narrow-bandwidth 2-μm optical parametric oscillator/power amplifier based on periodically poled MgO:LiNbO3”, in CLEO/QELS 2006, CThG3 (2006)
M.Maruyama and H.Nakajima,S.Kurimura,N.E.Yu and K.Kitamura　"70-mm-long periodically poled Mg-doped st oichiometric LiNbO3 devices for nanosecond optical parametric generation", Appl. Phys. Lett., 89(2006)011101
O.A.Louchev, S.Kurimura, K.Kitamura and N.E.Yu, “Thermal inhibition and control of second harmonic generation in periodically poled LiNbO3 crystals”, in CLEO/QELS 2006, CML5 (2006)
M.Maruyama, H.Nakajima, S.Kurimura and K.Kitamura, “Optical damage resistant 70-mm-long periodically poled Mg doped stoichiometric LiNbO3 for low-threshold optical parametric generation”, in CLEO/QELS 2006, CMB1 (2006)
（2005）
H.Ishizuki and T. Taira; “High-energy quaso-phase-matched optical parametric oscillation in a periodically poled MgO:LiNbO3 device with a 5 mm X 5 mm aperture”, Opt. Lett. 30 (2005) 2918.
O.A.Louchev, N.E.Yu, S.Kurimura and K.Kitamura, “Thermal inhibition of high-power second-harmonic generation in periodically poled LiNbO3 and LiTaO3 crystals”, Appl. Phys. Lett., 87 (2005) 131101
M.Maruyama, K.Hodoyama, H.Nakajima, N.E.Yu, S.Kurimura and K.Kitamura, “A 70-mm-long periodically-poled Mg-doped stoichiometric LiNbO3 for low-threshold optical parametric generation”, in CLEO/QELS 2005, CthY3 (2005)
（2004）
H. Ishizuki, I shoji,and T. Taira; “High-energy quasi-phase-matched optical parametric oscillation in a 3-mm-thick periodically poled MgO:LiNbO3 device”, Opt. Lett. 29 (2004) 2527
Y.Sasaki, H.Yokoyama and H.Ito ;”Dual-wavelength optical-pulse source based on diode lasers for high-repetition-rate, narrow-bandwidth terahertz-wave generation”, Opt. Exp. 12 (2004) 3066
(2003)
N.E.Yu, S.Kurimura, K.Kitamura, J.H.Ro, M.Cha, S.Ashihara, T.Shimura, K.Kuroda and T.Taira ;”Efficient frequency doubling of a femtosecond pulse with simultaneous group-velocity matching and quasi phase matching in periodically poled, MgO-doped lithium niobate”, Appl. Phys. Lett., 82 (2003) 3388
H.Ishizuki, T.Taira, S.Kurimura, J.H.Ro and M.Cha ;”Periodic poling in 3-mm-thick MgO:LiNbO3 crystals, Jpn.J.Appl.Phys.,
(2001)
K.Kitamura, Y.Furukawa, S.Takekawa, H.Ito, and V.Gopalan; “Non-Stoichiometric control of LiNbO3 and LiTaO3 in ferroelectric domain engineering for optical device”, Ferroelectrics, 253 (2001) 462