Abstract
This paper gives the results of calculations of the accoustooptic effect in a. planar graded index waveguide obtained from the diffusion of titanium to a Y-cut LiNbO3. The effect of TE and TM modes are considered. The effectiveness of diffraction (TE_m -> TE_m -> TM_m -> TM_m) and conversion (TE_m -> TE_n, TM_m -> TM_n, TE_m ->TM_Lm) of modes, depending on the acoustic power is investigated. Calculations are carried out for acoustic wave of 360 MHz frequency.References
[1] L. KUHN, M. DAKSS, Deflection of an optical guided wave by surface acoustic wave, Appl. Phys. Lett.,, 17, 265 (1970).
[2] Y. OHMACHJ, Acoustooptic TE_0–MT_0, mode conversion in a thin film of amorphous tellurium dioxide, Electron. Letters, 9, 539 (1973).
[3] R. SCHMIDT, I. KAMINOW, Acoustooptic diffraction of guided optical waves in LiNDbO_3, Appl. Phys. Lett., 23, 417 (1973).
[4] H. SASAKI, Thickness dependence of effective coupling factors of ZnO thin-film surface-wave transducers, Appl. Phys. Lett., 25, 476 (1973).
[2] Y. OHMACHJ, Acoustooptic TE_0–MT_0, mode conversion in a thin film of amorphous tellurium dioxide, Electron. Letters, 9, 539 (1973).
[3] R. SCHMIDT, I. KAMINOW, Acoustooptic diffraction of guided optical waves in LiNDbO_3, Appl. Phys. Lett., 23, 417 (1973).
[4] H. SASAKI, Thickness dependence of effective coupling factors of ZnO thin-film surface-wave transducers, Appl. Phys. Lett., 25, 476 (1973).