A coherent CO(2) laser communication system that yields high-quality voice communications between a transmit-receive station and a remote site (24 km) where modulable retroreflectors are located was developed. The potential range capability of this system was 80 km, and the system was improved by 20 dB in the signal-to-noise ratio over a direct-detection system.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.