Upcoming generations of coherent intra/inter data center interconnects currently lack a clear path toward a reduction of cost and power consumption, which are the driving factors for these data links. In this work, the tradeoffs associated with a transition from coherent C-band to O-band silicon photonics are addressed and evaluated. The discussion includes the fundamental components of coherent data links, namely the optical components, fiber link and transceivers. As a major component of these links, a monolithic silicon photonic BiCMOS O-band coherent receiver is evaluated for its potential performance and compared to an analogous C-band device.TU Berlin, Open-Access-Mittel - 2021BMBF, 13N14932, Verbundprojekt: Photonic Embedding of Active Region LASER Chips on Silicon (PEARLS) - Teilvorhaben: Entwurf und Charakterisierung von eingebetteten, horizontal-gekoppelten Laser-Strukturen auf SiliziumEC/H2020/822002/EU/Lasercom-on-chip for next generation, high-speed satellite constelation interconnectivity/ORIONA
