Abstract

Since the discovery¹ of a large, stable second-order χ⁽²⁾ nonlinearity in temperature/electric field poled fused silica, there have been intensive efforts both to understand the microscopic mechanisms leading to the nonlinearity and to exploit the nonlinearity for planar waveguide and fiber devices. This paper will review the present status of both the fundamental studies and the device applications.

© 1997 Optical Society of America