Impedance-engineered low power MZM / driver assembly for CFP4-size pluggable long haul and metro transceiver. - Karl-Otto Velthaus; Norman Wolf; Jung Han Choi; Lei Yan; P. Harati; Marko Gruner; Braulio Gomez Saavedra; Marko Rausch; Heinz-Gunter Bach; Martin Schell (ECOC, 2014)

Low power InP-based monolithic DFB-laser IQ modulator with SiGe differential driver for 32 GBd QPSK modulation. - Sophie Lange; Lei Yan; Norman Wolf; Ronald Kaiser; Marko Gruner; Karl-Otto Velthaus; Martin Schell (ECOC, 2015)

A performance comparison of single-ended- and differential driving scheme at 64 Gbit/s QPSK modulation for InP-based IQ-Mach-Zehnder modulators in serial-push-pull configuration. - Marko Rausch; Norman Wolf; Lei Yan; Karl-Otto Velthaus; Detlef Hoffmann; Marko Gruner; Martin Schell (ECOC, 2015)

Low switching voltage InP-based travelling wave electrode Mach-Zehnder modulator monolithically integrated with DFB-laser for 60 Gb/s NRZ. - Sophie Lange; Ronald Kaiser; Marko Gruner; Michael Hamacher; Karl-Otto Velthaus; Martin Schell (OFC, 2015)

First 105 Gb/s low power, small footprint PAM-8 impedance-engineered TOSA with InP MZ-modulator and customized driver IC using predistortion. - Braulio Gomez Saavedra; Norman Wolf; Lei Yan; Christian Meuer; Jung Han Choi; Karl-Otto Velthaus; Marko Gruner; Colja Schubert; Heinz-Gunter Bach; Martin Schell (OFC, 2015)

CL-TWE Mach-Zehnder modulators on InP: Central elements in transmitter PICs of increasing complexity. - Ronald Kaiser; Sophie Lange; Marko Rausch; Braulio Gomez Saavedra; Marko Gruner; Gerrit Fiol; Klemens Janiak; Alessandro Aimone; Karl-Otto Velthaus; Jung Han Choi; Martin Schell (ICTON, 2017)

Programmable Transfer Function Optical-DAC Using an InP Segmented Mach-Zehnder Modulator. - Alessandro Aimone; Stefanos Dris; Jan Sundermeyer; Jung Han Choi; Conrad Zerna; André Richter; Karl-Otto Velthaus (ICTON, 2018)