Sub-THz photonic frequency conversion using graphene and InP-based transistors for future fully coherent access network. - Kenta Sugawara; Tetsuya Kawasaki; Gen Tamamushi; Mastura B. Hussin; Adrian Dobroiu; Tomohiro Yoshida; Tetsuya Suemitsu; Hirokazu Fukidome; Maki Suemitsu; Victor Ryzhii; Katsumi Iwatsuki; Shigeru Kuwano; et al. (ECOC, 2015)