All-optical poling of chalcohalogenide and lead-salt silicate glasses

Summary form only given. It has already demonstrated that a second order SHG nonlinearity may be induced by all-optical means in centrosymmetric materials. The writing process has been later on speed up by simultaneous excitation of the material with high intensity laser pulses at both the fundamental and the harmonic wavelength (the so-called "seeding technique").. In this paper we present the results of our experiments on the all-optical poling of a chalcohalogenide glass and we make a comparison with the behaviors and performance obtained with a commercial lead-salt glass (Schott SFS7).