Abstract: It is proposed a scheme based on two levels of polarizing beam splitter to purify relaying problem in the remote transmission process of the quantum signaling. Three polarizing beam splitters are divided into two stages, the first stage including one splitter and the second stage including another two splitters. The three splitters make a new pair of entangled states after mixed-state quantum signaling going through two stages PBS. Using the new entangled states to replace the original mixed state to achieve the purpose of purification . The result show that the entanglement purification method can purify quantum signaling effectively and it applies well in many fields and easy to operated. The research on the scheme has certain technical reference for the future of transmission in quantum communication of signaling.

Key words: Quantum optics, Quantum signaling, Polarization beam splitter, Entanglement purification, Entangled state