from limited reach due to channel loss. Multi-mode vertical-cavity surface-emitting laser (VCSEL)-based optical interconnects can enable high-bandwidth connectivity while extending the reach to tens of meters [1-3]. Pluggable VCSEL-based optical modules are widely used in data center communication. With VCSELs and their drivers separately mounted on a board, these modules similarly suffer from electrical interconnect limitations when they communicate to computing/switching (XPU/SW) systems; hence, they do not meet stringent system requirements on interconnect latency, bandwidth (BW), or energy efficiency. A copackaged optical interconnect solution can address the outlined challenges by integrating the optical components with an XPU/SW and satisfy VCSEL temperature and reliability
Susnata Mondal, Junyi Qiu, Sashank Krishnamurthy, Joe Kennedy,
Soumya Bose, Tolga Acikalin, Shuhei Yamada, James Jaussi, Mozhgan Mansuri Intel, Hillsboro, OR As bandwidth demand increases, electrical interconnects suffer