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Bulk aluminium nitride single crystals grown by physical vapour transport were characterised for their nonlinear optical properties. The two independent nonzero optical nonlinear coefficients were determined by the Maker Fringe method, with a LiNbO3 plate as a reference. At a wavelength of 1030 nm, the measured coefficient |d33| = (4.3 ± 0.3) pm V−1 and |d31| = |d33|/(45 ± 5). Michelson interferometer...
4.6 Conclusions In this chapter, we summarized the effects of the various anisotropic material properties on light diffraction, space-charge field formation, and photorefractive two-wave mixing interactions. These properties include the birefringence, the dielectric constants, the dichroism, the electro-optic constants, the elastic and photoelastic constants, the piezoelectric constants, the mobility...
Oxygen octahedra ferroelectrics are important materials because of their electrooptic and nonlinear-optic properties [1]. In this group, the perovskites BaTiO3 and KNbO3 crystals are especially promising materials. These two crystals are interesting for nonlinear-optical applications because of their large value of the spontaneous polarization at room temperature and the high packing density...
We compare the oscillation thresholds and slope efficiencies in 10 ns pulsed eyesafe OPOs based on MgO-doped PPSLT and monolithic KTP. The optimal combination of low threshold and high slope efficiency is achieved with PPSLT.
We compare the oscillation thresholds and slope efficiencies in 10 ns pulsed eyesafe OPOs based on MgO-doped PPSLT and monolithic KTP. The optimal combination of low threshold and high slope efficiency is achieved with PPSLT.
Intensity thresholding in a self-pumped phase conjugate mirror with a ring cavity is investigated in order to use it for an intensity thresholder in all optical data processing and associative memory system. The rise time and the saturated value of the phase conjugate reflectivity of the mirror depend on the incident intensity. Using these dependencies, two types of optical intensity thresholder...
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