The present invention provides a method and apparatus for free-space
optical communication. The method comprises the steps of receiving a
receive optical beam through a narrow field of view, determining a
receive power level, shifting an alignment, maximizing the receive power,
and transmitting a transmit optical beam along the alignment, wherein the
narrow field of view is less than a divergence of the transmit optical
beam. The narrow field of view can be a narrow region of a multi-region
field of view. The apparatus comprises an optical beam transmitter
configured to generate a narrow diverging transmit beam, a narrow field
of view optical receiver, wherein the field of view is less than the
divergence of the transmit beam, and a controller configured to determine
a power level of a receive beam and to determine adjustments to a
direction of transmission maximizing receive power.