Explore multiple technological pathways for achieving energy-efficient optical systems in this 14-minute conference talk by Andreas Bechtolsheim at the Hot Interconnects Symposium. Discover various approaches and strategies for reducing power consumption in optical interconnects and communication systems, examining the trade-offs and benefits of different implementation methods. Learn about cutting-edge developments in optical technology that address the growing demand for energy efficiency in high-performance computing and data center applications. Gain insights into the future direction of optical systems design and the practical considerations for implementing energy-efficient solutions across different use cases and deployment scenarios.