Method and apparatuses for compensating for wavelength drift in a
fiber-optic laser transmitter includes 1) controlling a temperature
within the optoelectronic assembly at a defined level; 2) driving the
optoelectronic assembly to emit light, wherein the emitted light has a
wavelength that is within a channel of operation, the channel of
operation including a range of wavelengths centered around a channel
center wavelength; 3) accessing from memory within the optoelectronic
assembly a control value associated with the temperature of the
optoelectronic assembly at defined points within an operational lifetime
of the optoelectronic assembly; and 4) recalculating the defined level by
reference to the control value, whereby a wavelength of the
optoelectronic assembly is maintained within the channel of operation
despite an expected drift of wavelength.