Notice of Removal: High-performance lithium niobate quasi-collinear acousto-optic filter

Abstract

Quasi-collinear type of acousto-optic (AO) diffraction by bulk acoustic waves (BAW) is widely used for high-resolution tunable optical filters and dispersive delay lines for ultrashort laser pulse shaping. Most often, quasi-collinear paratellurite (TeO 2 ) AO filters are used due to high AO figure of merit of this material (V. Molchanov et al. Quant. Electron. 39:353, 2009). Lithium niobate (LN, LiNbO 3 ) collinear filters along Y-axis are known to provide a better spectral resolution or a shorter response time. A demand for higher spectral performance of AO filters is caused by progress in ultrafast laser technology and adaptive spectroscopy. The performance of a LN filter can be improved using quasicollinear diffraction. We aimed at design of a quasi-collinear AO filter in LN with maximum diffraction efficiency.