Selenide glass single mode optical fiber for nonlinear optics

The physical characteristics, expansion coefficient, vitreous transition temperature and refractive index of several chalcogenide glasses based on the GexSe100−x (15 ⩽ x ⩽ 25) system are studied. A couple of core/clad compositions is chosen with the purpose of the elaboration of single mode optical fibers. The fibers are obtained through a modified drawing process allowing to reduce the number of steps in the single mode fiberization procedure. The optical losses, the linear and nonlinear optical characterizations at 1.55 μm are presented.