Electrooptical Properties of Heterostructure (Pb, La)(Zr, Ti)O3 Waveguides on Nb–SrTiO3
Electrooptical Properties of Heterostructure (Pb, La)(Zr, Ti)O3 Waveguides on Nb–SrTiO3
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Nb-SrTiO3 异质结构 (Pb, La)(Zr, Ti)O3 波导的电光特性
DOI：
10.1143/jjap.38.5641
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发表时间：
1999
影响因子：
1.5
通讯作者：
E. Osakabe
中科院分区：
文献类型：
--
作者：
K. Nashimoto;Shigetoshi Nakamura;Takashi Morikawa;Hiroaki Moriyama;Masao Watanabe;E. Osakabe
(Pb, La)(Zr, Ti)O3 (PLZT) 异质结构波导的电光行为，包括 PLZT/Pb(Zr0.95Ti0.05)O3 [PZT (95/5)] 和 Pb(Zr0.52Ti0.48)O3 [PZT (52/48)]/Pb(Zr0.85Ti0.15)O3 [PZT (85/15)]在Nb-ST基底上进行了检查。通过使用这些异质结构制造光束偏转器来表征电光行为。在施加初始电压后，异质结构波导表现出无滞后电光行为。 PLZT/PZT(95/5)和PZT(52/48)/PZT(85/15)异质结构波导的电光行为分别呈现非线性依赖性和线性依赖性。从+7.5 V以上V-θ特性的线性部分获得的PLZT/PZT(95/5)异质结构的表观电光系数为53 pm/V，PZT(52/48)/PZT(85/15)异质结构的表观电光系数为37 pm/V。使用有效电压的PZT（52/48）波导层的电光系数估计为53 pm/V。
The electrooptic behavior of (Pb, La)(Zr, Ti)O3 (PLZT) heterostructure waveguides, including PLZT/Pb(Zr0.95Ti0.05)O3 [PZT (95/5)] and Pb(Zr0.52Ti0.48)O3 [PZT (52/48)]/Pb(Zr0.85Ti0.15)O3 [PZT (85/15)] on Nb–ST substrates was examined. Electrooptic behavior was characterized by fabricating beam deflectors using these heterostructures. The heterostructure waveguides exhibited hysteresis-free electrooptic behavior after the application of initial voltage. The electrooptic behavior of PLZT/PZT (95/5) and PZT (52/48)/PZT (85/15) heterostructure waveguides presented a nonlinear dependence and a linear dependence, respectively. The apparent electrooptic coefficient of the PLZT/PZT (95/5) heterostructure obtained from the linear part of the V–θ characteristic above +7.5 V was 53 pm/V, and that of the PZT (52/48)/PZT (85/15) heterostructure was 37 pm/V. The electrooptic coefficient of the PZT (52/48) waveguide layer using an effective voltage was estimated to be 53 pm/V.