Patent ID: 9641276
Date: 2017-05-02
CPC Classifications: H04B,H04J

Claim:
1. A method for designing a time and wavelength division multiplexed (TWDM) passive optical network (PON) comprising an optical line terminal (OLT), a plurality of optical network units (ONUs) comprising a first ONU and a second ONU, and a plurality of optical paths comprising a first optical path and a second optical path, wherein each optical path extends from the OLT to one of the ONUs, and wherein the OLT comprises a plurality of optical ports comprising a first optical port and a second optical port, the method comprising: designing the PON according to a statistical design power budget procedure, wherein the statistical design power budget procedure assigns to at least one component in the PON a power loss less than a specified worst-case power loss for the component; assigning the first ONU to the first optical port, wherein the first ONU is on the first optical path, wherein the first optical path has a power loss less than a mean power loss for the optical paths, and wherein the first optical port has a power loss greater than a mean power loss for the optical ports; and assigning the second ONU to the second optical port, wherein the second ONU is on the second optical path, wherein the second optical path has a power loss greater than the mean power loss for the optical paths, and wherein the second optical port has a power loss less than the mean power loss for the optical ports.