Silicon photonic links based on ring-resonator devices provide a unique opportunity to deliver distance-independent connectivity, whose pin-bandwidth scales with the degree of wavelength-division multiplexing. However, reliability and robustness are major challenges to widespread adoption of ring-based silicon photonics. In this work, a CMOS photonic transceiver architecture is demonstrated that incorporates the following enhancements: transmitters with independent dual-edge pre-emphasis to compensate for modulator bandwidth limitations; a bias-based tuning loop to calibrate for resonance wavelength variations; and an adaptive sensitivity-bandwidth receiver that can self-adapt for insitu variations in input capacitance, modulator/photodetector performance, and link budget.
['Cheng Li', 'Rui Bai', 'Ayman Shafik', 'Ehsan Zhian Tabasy', 'Geng Tang', 'Chao Ma', 'Chin-Hui Chen', 'Zhen Peng', 'Marco Fiorentino', 'Patrick Chiang', 'Samuel Palermo']
A ring-resonator-based silicon photonics transceiver with bias-based wavelength stabilization and adaptive-power-sensitivity receiver