Experimental evidence of enhanced electro-optic control on a lithium niobate photonic crystal superprism

J. Amet (1) , G. Ulliac (1) , F.I. Baida (1) , M.-P. Bernal (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

We present experimental evidence of an electro-optic superprism photonic crystal fabricated on a lithium niobate substrate, in agreement with simulation results. In this work, rather than changing the incident wavelength or angle to achieve large light deflections, a direct modification of the band structure by the electro-optic effect causes changes in the propagation direction of the incident beam. Additionally, the chosen geometry allows significant ultrarefraction as the incident wavelength is varied giving rise to a double purpose active-passive photonic crystal light deflector that could present potential interest for optical communications

Domaines: Optique / photonique

J. Amet, G. Ulliac, F.I. Baida, M.-P. Bernal. Experimental evidence of enhanced electro-optic control on a lithium niobate photonic crystal superprism. Applied Physics Letters, 2010, 96, pp.103111. ⟨10.1063/1.3359421⟩. ⟨hal-00463178⟩