Compact infrared laser source based on a field-emission electrontube

A compact semiconductor laser was constructed. This laser was pumped by a beam of fast electrons and its pulsed output radiation power was ~100 kW. Measurements were made of the principal parameters of laser radiation emitted by multielement waveguide targets excited by an electron beam generated in a field-emission tube. The transverse distribution of the current density was investigated and the maximum energy of the pump electrons was determined.