BeamExpress, a spin-off of the Laboratory of Physics of Nanostructures, is an innovative start-up company dedicated to the development, manufacturing and marketing of optoelectronic components for next generation metropolitan optical fiber networks. It is currently focused on the development of products based on wavelength-controlled, long wavelength VCSELs (Vertical Cavity Surface Emitting Lasers) for wavelength-division-multiplexing applications.