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.