➀ Researchers have developed a prototype all-light communication network that allows seamless connectivity across air, land, and underwater environments. The network can operate even when communication nodes are on moving vehicles. The system uses mobile green light communication, blue laser technology, deep UV light, and an 850-nm laser diode for various data transmission needs. The prototype devices have been tested for bidirectional light transmission across air and underwater environments, achieving a maximum bandwidth of 4 Mbps. ➁ The research aims to create a comprehensive all-light communication network that combines wired and wireless nodes with light sources of different wavelengths. The team also plans to integrate mobile all-light communication with other technologies like radio, sonar, and gas. ➂ The technology could support various applications such as navigation, emergency response, research, and operations in diverse conditions.