Optical energy is provided to an optical amplifier by a first and a second
pump laser. The optical energy that is provided is used as a basis for generating
a gain associated with the optical amplifier. An error associated with the first
pump laser may be identified. One or more parameters associated with the second
pump laser may be controlled in response to the error such that the second pump
laser increases an optical power output provided to the optical amplifier to compensate
for the full or partial failure of the first pump laser. The adjustment in optical
power output is used by the optical amplifier to substantially maintain the gain
associated with the optical amplifier.