In this interview, Peter Runge recounts his life and work with Bell Labs on optical communication. Runge describes his early life and education in West Germany, and his undergraduate and graduate work at Technische Hochschule Braunschweig (later Technische Universität Braunschweig), first on millimeter waveguide technology, and then developing a single-frequency laser for optical communication. He discusses his move to the United States to work at Bell Labs, starting with his initial work on organic dye lasers and then developing optical communication technologies. Runge goes into detail on both the state of optical communication in the 1970s and ‘80s, as well as the internal workings at Bell Labs.