First monolithic GaAs IQ electro-optic modulator, demonstrated at 150 Gbit/s with 64-QAM. - Dietmar Korn; Philipp C. Schindler; Christos Stamatiadis; Matthew O'Keefe; Leontios Stampoulidis; René Schmogrow; Panagiotis Zakynthinos; Robert Palmer; Nigel Cameron; Yi Zhou; Robert G. Walker; Efstratios Kehayas; et al. (OFC/NFOEC, 2013)

Fabrication of the first high-speed GaAs IQ electro-optic modulator arrays and applicability study for low-cost Tb/s direct-detection optical OFDM networks. - Leontios Stampoulidis; Matthew F. O'Keefe; Elias G. Giacoumidis; Robert G. Walker; Yi Zhou; Nigel Cameron; Efstratios Kehayas; Ioannis Tomkos; Lars Zimmermann (OFC/NFOEC, 2013)

Integrated Photonic True-Time Delay Beamformer for a Ka-band Phased Array Antenna Receiver. - Vanessa C. Duarte; Joao G. Prata; Carlos Ribeiro; Rogério N. Nogueira; Georg Winzer; Lars Zimmermann; Robert G. Walker; Stephen Clements; Marta Filipowicz; Marek Napierala; Tomasz Nasilowski; Jonathan Crabb; et al. (OFC, 2018)