Demonstration of a silicon ring resonator coupling-modulator-based coherent optical sub-assembly operating at 802 Gbps

We present the first demonstration of a silicon ring resonator, coupling-modulation-based, dual-polarization I/Q modulator in an optical sub-assembly with integrated SiGe drivers. We demonstrate 78-km 802.6 Gbps transmission with 90-GBaud PS-64-QAM modulation.