In recent years higher integration of optics with electronics has been proposed using the advantages of silicon photonics. In particular co-packaging of optical engines with Ethernet switch ICs. Within the last year there has been a lot of progress on these co-packaged optical switch designs. This presentation shows the architecture and performance data of a “half optics” 25Tb/s switch system with a linear interface between the optical engine and the switch SERDES as one implementation example. Design considerations and potential implementation issues are addressed. An outlook for future systems is given. Speaker(s): Karl Muth, santa clara, California, United States, Virtual: https://events.vtools.ieee.org/m/312554