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We demonstrate multi-channel InP-based coherent transmitter and receiver photonic integrated circuits hybrid integrated with SiGe driving and amplifying electronics both capable of operating at 880 Gb/s and the transmitter alone up to 1 Tb/s per wave. These hybrid assemblies demonstrate optical transmissions across a commercial line system at distances from 200 to 1400 km, with symbol rates between 66–100 GBd, utilizing 16-, 32-, and 64-QAM modulation formats. Additionally, we demonstrate a back-to-back transmission from the TxPIC assembly to a reference receiver at 100 GBd $\times \,\, 32$ QAM, a 1 Tb/s per wavelength capability. [ABSTRACT FROM AUTHOR]

We demonstrate a fully integrated multi-channel InP-based coherent transmitter photonic integrated circuits (PICs) with extended C-band tunability, operating at 33 and 44 Gbaud per channel under 16-QAM dual-polarization modulation. PICs are demonstrated integrating up to 14-channels enabling multi-Tb/s total PIC capacities. [ABSTRACT FROM PUBLISHER]

We demonstrate generation and transmission of optical signals by directly interfacing highly efficient silicon-organic hybrid (SOH) modulators to binary output ports of a field-programmable gate array. Using an SOH Mach–Zehnder modulator (MZM) and an SOH IQ modulator we generate ON–OFF-keying and binary phase-shift keying signals as well as quadrature phase-shift keying and 16-state quadrature amplitude modulation (16QAM) formats. Peak-to-peak voltages amount to only 0.27 Vpp for driving the MZM and 0.41 Vpp for the IQ modulator. Neither digital-to-analog converters nor drive amplifiers are required, and the RF energy consumption in the modulator amounts to record-low 18 fJ/bit for 16QAM signaling. [ABSTRACT FROM PUBLISHER]