DESIGN CONSIDERATIONS OF A MW-SCALE, HIGH-EFFICIENCY, INDUSTRIAL-USE, ULTRAVIOLET FEL AMPLIFIER

Theoretical and experimental work in free electron laser (FEL) physics, and the physics of particle accelerators over the last ten years has pointed to the possibility of the gen-eration of MW-level optical beams with laser-like charac-teristics in the ultraviolet (UV) spectral range. The concept is based on generation of the radiation in the master oscil-lator – power FEL amplifier (MOPA) configuration. The FEL amplifier concept eliminates the need for an optical cavity. As a result, there are no thermal loading limitations to increase the average output power of this device up to the MW-level. The problem of a tunable master oscillator can be solved with available conventional quantum lasers. The use of a superconducting energy-recovery linac could pro-duce a major, cost-effective facility with wall plug power to output optical power efficiency of about 20 per cent that spans wavelengths from the visible to the deep ultraviolet regime.