Optimization of the structural and optical properties of Ge-As-Se glasses

In this study GeXAsySe100x+y glasses with 0lesx 0.1 dB/cm for Ge > 33% (Ge33As12Se55) at 1550 nm. A modified Z-Scan technique was developed to measure the nonlinear refractive index (n2) at 1500 nm. The conventional closed aperture is replaced by an InGaAs camera to image the output beam. Image analysis is done using Lab VIEW software and the on axis transmission is measured and extracted as a Z-scan.