Abstract

Recent interest in large switch arrays has generated demand for fabrication- tolerant devices with low-voltage-length products $(VL=L·\left|\overline{V}\right|),$low optical and electrical crosstalk, and a minimum number of electrodes. In LiNbO₃, only phase mismatch (Δβ) switches have achieved low ML. The Δβ-reversal switch is the commonest practical structure, easing fabrication tolerances at the expense of extra electrodes. However, little attention has yet been given to Δ_k switches¹ because of the much higher drive levels predicted.

© 1987 Optical Society of America