Indirect Pockels effect in rubidium hydrogen selenate

Laurent Guilbert (1) , Jean-Paul Salvestrini (1) , Z. Czapla (2)

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes
2 Institute of Experimental Physics [Wroclaw]

The frequency dispersion of the large electro-optic effect in rubidium hydrogen selenate is measured from 300 Hz to 200 kHz as a function of the direction of propagation. It is shown that the major coefficient is r 42 (750 pm/V at 1 kHz). Both dielectric and electro-optic responses exhibit strong, perfectly correlated dispersions in this frequency range. The experimental results confirm the major contribution of domain dynamics in the huge electro-optic effect and are in perfect agreement with calculations based on the tilting of the optical in- dicatrix. The possible use of rubidium hydrogen selenate in low-frequency electro-optic modulators is briefly discussed.

Domaines: Optique [physics.optics]

Laurent Guilbert, Jean-Paul Salvestrini, Z. Czapla. Indirect Pockels effect in rubidium hydrogen selenate: measurement of the large r42 coefficient. Journal of the Optical Society of America B, 2000, 17 (12), pp.1980-1985. ⟨10.1364/JOSAB.17.001980⟩. ⟨hal-00186033⟩