… a transmitter architecture achieving high bandwidth transmission, by replacing the frequency
comb generator to multiple … This thesis investigated major impairments in coherent …

… CMOS DACs and ADCs are essential in today’s digital coherent trans… offer higher bandwidth
scalability at the cost of higher … In Section II, we discuss the principle of the signal synthesis, …

… user with dedicated optical bandwidth, creating scalable user–… a single broadband (160 GHz)
optical coherent receiver at … THz-bandwidth, 2.5-GHz-spacing comb signals with a spectral …

… of the system and achieving high spectral efficiencies and low … with t singleantenna transmitters
and a Base Station (BS) … at 15 GHz with 20 MHz of bandwidth using 16QPSK and 8PSK …

… These frequency-domain processings including spectral … enhancing signal quality by the
diversity synthesis scheme [19]. … performance scaling. We also developed our in-house InP-…

… throughput towards its theoretical limits and the bandwidth is … building up a digital coherent
transmitter. The functionality … a single MZM-based IQ-modulator can modulate multiple lines …

… not suffer the complexity scaling issues for multilevel formats … -cosine (RRC) spectral shaping
at the transmitter side and a … required, realized by either high bandwidth receivers [51] or …

… the persistent long-range spectral phase coherence of the MVM … is used to synthesize a vector
input of three coherent frequency … Since broadband EOMs typically have a low modulation …

… several categories of enablers at the infrastructure, spectrum, … -high coherence and high
parallelism of signals by coherent … can be jointly optimized with the transmitters and receivers to …

… bandwidth of the transmission medium is large compared to the spectral content of the data,
multiple … in recent developments of coherent optical communication with techniques such as …