Photorefractive recording by a special mechanism in planar LiNbO(3) waveguides.
Recording of holographic gratings in z-cut LiNbO(3) waveguides with extraordinarily (TM) polarized light is demonstrated. In this geometry, photovoltaic currents perpendicular to the guiding layer and the grating vector set up space-charge fields. The mechanism has no equivalent in bulk material.
Kip
D
D
Rickermann
F
F
Krätzig
E
E