Optical switching device using leaky surface wave

The decay constants of leaky surface waves in an indiffused LiNbO
3
Y
-cut plane propagation can be controlled by electro-optic effect. According to our calculation, we can obtain about 20 dB/ cm optical switching devices for applied electric field of 3 V/μm. Our experiments show that optical switching of 14 dB/cm can be obtained for 300 V/150 μm.