Lange, S.S.LangeKaiser, R.R.KaiserGruner, M.M.GrunerWolf, N.N.WolfYan, L.L.YanRehbein, W.W.RehbeinSchell, M.M.Schell2022-03-132022-03-132016https://publica.fraunhofer.de/handle/publica/397070We present our recent advances in InP-based optical transmitter photonic integrated circuits, developed for compact size, power efficiency and high-speed modulation. The transmitters have low switching voltages of 2 V. Excellent BER performance is achieved up to 64 Gb/s QPSK and 107.4 Gb/s PAM8 operation.en621conference paper