Patent ID: 8155523

Claim:
A system for overlaying an analog broadcast signal, comprising: an Optical Line Terminal of a Wavelength Division Multiplexed Passive Optical Network (WDM-PON), including a broadband light source for generating uplink seed light for each uplink channel of the WDM-PON, and a modulator for modulating the analog broadcast signal onto the uplink seed light; an Optical Network Terminal of the WDM-PON; and a signal shaper to reduce variations in the first signal due to the analog broadcast signal, the Optical Network Terminal receiving the uplink seed light from the Optical Line Terminal and comprising: an optical divider for dividing the received seed light into a first signal and a second signal; a light source for generating an uplink data signals using the first signal as seed light; and an RF receiver for detecting the analog broadcast signal modulated on the second signal, wherein the modulator is operative to modulate the analog broadcast signal onto the uplink seed light using a phase modulation scheme, and wherein the signal shaper comprises an optical phase-shifter driven by the detected analog broadcast signal output by the RF receiver.