Transmitting end, receiving end and system for transmitting quantum light

• Main Authors: SU DONGBO, LUO LE, CHEN BOAI, ZHOU ZHUOJUN, HAN ZHUO, WU HAO, REN ZHIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention provides a transmitting end, a receiving end and a system for transmitting quantum light, and relates to the technical field of quantum computers. The system for transmitting the quantum light comprises a transmitting end and a receiving end, the transmitting end converts first quantum light with the wavelength being a first wavelength into second quantum light with the wavelength being a second wavelength, and the second quantum light is transmitted to the receiving end through a free space; the receiving end receives the second quantum light from the transmitting end through the free space; and the second quantum light is transmitted in the transmitting end internal light path and the receiving end internal light path through communication optical fibers. According to the invention, the photon loss in the quantum light transmission process can be reduced, the signal-to-noise ratio of the quantum light signal is improved, and the quantum entanglement quality is ensured. 本发明提供一种用于传输量子光的发射端和接收端及系