Patent ID: 9432140
Filing Date: 2016-08-30
CPC Classification: G02B,H04B,H04J,H04Q

Claim Text:
1. A method of performing online receiver characterization for a tunable optical network unit (ONU) having matching upstream channels and downstream channels, the method comprising: tuning an optical receiver of the tunable ONU to a first downstream channel; synchronizing one or more transceivers at an optical line terminal (OLT); opening a timeslot for channel checking of one or more upstream channels; receiving a channel checking message from the OLT comprising a downstream channel identifier (ID) at the tunable ONU; activating a laser at a pre-set temperature; sending an upstream message from the tunable ONU to the OLT, wherein the upstream message comprises the downstream channel ID and an identifier associated with the tunable ONU; and verifying the downstream channels and upstream channels at the OLT based on the downstream channel ID and the identifier associated with the tunable ONU.