Analysis of electro-optic crystal-based Fabry-Perot etalons for high-speed spatial light modulators.
The use of electro-optic (EO) crystal-based Fabry-Perot modulators (FPMs) as high-speed spatial light modulators is proposed. The FPMs operate with an extremely low drive voltage and a high extinction ratio. It is revealed by analysis of both the linear EO effect and the inverse piezoelectric effect of various EO crystals that three kinds of crystal configuration are suitable as FPMs. One of these is applicable to isotropic crystals, point groups 23 and (-)43m, and the others are better suited for uniaxial EO crystals, point groups (-)42m and 3m. Typical EO crystals suitable as FPMs are ferroelectric crystals such as LiNbO3, LiTaO3, and LiIO3 and sillenite compounds such as Bi12SiO20 and Bi12GeO20 as well as compound semiconductors such as GaAs and GaP.
Takizawa
Kuniharu
K
Department of Applied Physics, Faculty of Engineering, Seikei University, 3-3-1 Kichijoji Kitamachi Musashino-shi, Tokyo 180-8638, Japan. takizawa@apm.seikei.ac.jp