title: Second-harmonic generation in channel glass waveguides.
abstract: The efficiency of second-harmonic generation for a pump wave at 1.06 microm in Ag(+)-Na(+) -exchanged channel glass waveguides has been measured. Different polarization combinations of fundamental and secondharmonic waves have been investigated and the efficiency has been found to be of the order of 10(-15)s for a pump power of 6 kW. Our calculations show that this value can be explained by gradient terms in the nonlinear polarization.
authors: S I
authors: SI
authors: Bozhevolnyi
authors: K
authors: K
authors: Pedersen