Power efficiency dependence on transient response speed of optical transceiver with HGW-Determined ONU sleep pattern

We reduce the power consumption of the optical network unit (ONU) by using the home gateway to set the ONU´s sleep pattern. We confirm the improvements possible with our proposal. Numerical simulations quantitatively reveal the relationship between the transient response speed of the optical transceiver (start-up and shut-down) and the power savings possible. It is also shown that one of the key points for 10-Gbit/s class transceivers is raising the response speed to achieve high power efficiency.