Optical communication encryption technology based on CPolSK modulation

Communication technology is the cornerstone of the modern information society. Among them, optical communication technology, with its advantages of high bandwidth, low loss, and anti-interference, is gradually becoming the core transmission method of future information. However, optical communication systems still have security risks, such as signal eavesdropping, data tampering, and channel interference. To address these challenges, an optical communication encryption technology based on CPolSK modulation is proposed. The results show that this technology has a 16% higher anti-side-channel attack performance than traditional modulation at a lower signal-to-noise ratio, and in the free-space optical communication (FSO) scenario, the decoding accuracy of encrypted image information transmitted through optical communication exceeds 95%.