4.7--Coherent phasing of repetitively pulsed laser amplifiers

Recently completed experiments demonstrated the feasibility of a coherent optical array, using 1.06-micron laser components. This paper reports on automatic techniques used to control the relative phase of Nd :glass power amplifiers with gains up to 10 dB. Both amplifiers, fed from a master oscillator, were pumped repetitively at rates of one pulse per two seconds.