Introduction to the Issue on Green Photonics

The 21 papers in this issue on green photonics cover these broad technical areas: energy-efficient networks and architectures; photonics and electronic technologies for energy-efficient signal processing; optics for energy-efficient router and network design; technologies for energy-efficient optical circuit, burst, and packet switching; novel network paradigms leading to significant energy reduction; photonic and electronics for low-power interconnects; scaling efficiencies enabled by power-aware photonic and electronic-integrated circuits; and current and future trends in energy consumption of ICT and networks.