Highly Efficient Optical Second Harmonic Generation in Poled Ti-Doped Silica Glasses

Optical second harmonic intensity of poled Ti-doped silica glasses prepared by the Verneuil method has been measured. The second-order nonlinear coefficient, d 33 , of the glasses prepared from starting materials of TiO 2 and SiO 2 powders ranges from 0.2 to 0.5 pm/V. These values are one order of magnitude larger than that for silica glass without intentional dopants.