Abstract:
An optical network unit (ONU) comprising a media access controller (MAC) configured to support biasing a laser transmitter to compensate for temperature related wavelength drift receiving a transmission timing instruction from an optical network control node, obtaining transmission power information for the laser transmitter, estimating a burst mode time period for the laser transmitter according to the transmission timing instruction, and calculating a laser phase fine tuning compensation value for the laser transmitter according to the burst mode time period and the transmission power information, and forwarding the laser phase fine tuning compensation value toward a bias controller to support biasing a phase of the laser transmitter.
Abstract:
A self-characterization optical receiver comprising a tunable filter comprising a first transmission peak and configured to receive an optical signal comprising a plurality of channels at different wavelengths and output one channel at a wavelength corresponding to the first transmission peak, an optical-to-electrical (OE) converter configured to convert the one channel optical signal into an electrical signal, a monitor unit configured to adjust at least one control parameter based upon a power level of the electrical signal, and a control unit configured to adjust a heater bias current based upon control parameters received from the monitor unit, and wherein adjusting the heater bias current shifts the wavelength corresponding to the first transmission peak.