Patent ID: 8111987

Claim:
A system for rogue Optical Network Unit (ONU) detection via photonic mixing, comprising: a first Wavelength Division Multiplexer (WDM); a second WDM communicably coupled to the first WDM; a non-linear medium communicably coupled to the second WDM; and a photodetector communicably coupled to the non-linear medium; wherein the first WDM transmits a first upstream beam and a second upstream beam to the second WDM; wherein the first upstream beam is a normal upstream beam and wherein the second upstream beam is a rogue upstream beam; wherein the second WDM transmits the normal upstream beam and the rogue upstream beam to the non-linear medium; wherein the non-linear medium mixes the normal upstream beam and the rogue upstream beam resulting in a mixed beam; wherein the non-linear medium transmits the mixed beam to the photodetector; and wherein the photodetector analyzes the mixed beam to indicate the presence of a rogue ONU.