Power reduction by adaptively optimizing optical power using actual BER for 10G-EPON systems

摘要

The OLT calculates the pre-FEC BER using the number of corrected error bits, and decides the optical power of the ONU transmitter. The ONU adaptively adjusts the optical power according to the decision during the discovery window. The power consumption is reduc ed by 250 mW without any additional devices and without degrading throughput.