Numerical Simulation on Periodically Poled Lithium Niobate Transducers on Rotated Cuts

Rotated cut Periodically Poled Structures (PPS) are a promising technology allowing to generate bulk acoustic waves from ferroelectric domains periodicity. In this work, evolution of frequency-period product and k
²
is investigated in function of the substrate orientation. Numerical computation points out Periodically Poled Lithium Niobate (PPLN) transducers with k
²
up to 15% as well as frequency-period factor up to 12600m.s
^-1
Experimental comparison with the numerical computation for a (YXl)/64° PPLN transducer shows a relative difference of the frequency-period product less than 5%.