The Carolina Flashers Photonics Group is a North Carolina-based organization of worldwide Amateur Radio operators who use coherent, or more often, partially coherent light as a communications medium. We are proud to be an ARRL-affiliated club, and our club callsign is K4THZ. Visit our website for more information about us. Register below to join the carolinaflashers Yahoo! Group.

According to regulations administered by the Federal Communications Commission, the frequencies above 300GHz are a legitimate allocation for the Amateur Radio Service. This includes light waves, of course.

While many people consider through-the-air optical communication to be an unregulated medium, we as licensed hams follow all applicable FCC rules, such as callsign IDs, no commercial messaging, etc.