Patent ID: 8879051

Claim:
A system comprising: a radiation source configured to produce a beam; a modulator configured to modulate the beam to produce a modulated beam; a splitter configured to split the modulated beam to generate a plurality of the modulated beam each traveling along parallel light paths; optical amplification systems positioned in each of the parallel light paths to amplify the respective modulated beams, wherein each of the amplification systems comprise a fiber preamplifier and one or more fiber power amplifier stages; a transceiver configured to receive the amplified modulated beams via a first plurality of optical fibers, to transmit the amplified modulated beams to a target region, and to receive scattered beams from the target region; an optical mixer coupled to the transceiver via a second plurality of optical fibers and coupled to the radiation source via a third optical fiber, the optical mixer is configured to: receive the scattered beams from the transceiver, receive a reference beam from the radiation source, and determine a difference between the scattered beam and the reference beam.