Stewart E. Miller (September 1, 1918 – February 27, 1990) was a noted American pioneer in microwave and optical communications.
After World War II, he was instrumental in AT&T's L-3 coaxial cable carrier systems, then transferred to the Radio Research Department where he made advances in many millimeter-wave components.
In the early 1960s, Miller was the first to recognize the potential of optical communications and as director of Guided Wave Research, initiated a program to investigate a variety of periodic lens systems.
He became director of Lightwave Research in 1980, retired in 1983, and then consulted at Bellcore (now Telcordia Technologies) analyzing semiconductor lasers.
Marcatili), the Franklin Institute's 1977 Stuart Ballantine Medal, and the 1989 John Tyndall Award of the IEEE Lasers and Electro-Optics Society for distinguished contributions to fiber optics technology.