Semiconductor full gloss polarization switch

The invention relates to a semiconductor full gloss polarization switch which is used for solving the problem that the existing active optoelectronic components do not response fast enough in the optical branching and multiplex system and the optical crossing and interconnection of the next generation of high-speed all optical communication network. The invention comprises a multiple quantum welllayer prague structure semiconductor optical element, a signal light fiber collimator, a polarizer and an analyzer which are arranged on a foundation platform. The multiple quantum well layer prague structure semiconductor optical element is composed of N-numbered prague structure composite layers which epitaxially grow on a substrate, each composite layer is composed of the quantum well layer and a barrier layer and a total reflection membrane is arranged on one side of the multiple quantum well layer. Response wavelength of the semiconductor full gloss polarization switch is within the range of photo-communication w