Active-mirror amplifiers: Progress and prospects

Active-mirror amplifiers have been demonstrated to be viable amplifiers for use in high peak power/energy Nd:glass laser systems [1], [2]. In addition to having a rather large storage efficiency, they may be used in systems requiring a medium-repetition rate and possess desirable thermal properties for application in double-passed or regenerative amplifier architectures. Here, we review recent progress made in the development and deployment of active-mirror amplifiers, examine their potential storage and overall system efficiencies, and outline the technological progress needed for their development as high-repetition rate (1-10 Hz) amplifiers.