METHOD FOR GENERATION OF NARROW BEAMS WITH LOW DIVERGENCE IN LASERS

摘要

FIELD: quantum electronics. SUBSTANCE: method involves pumping active body, which is located in optical resonator which has output semitransparent mirror, focusing lens and mirror. Then beam is generated; its intensity at mirror is enough for beam reflection. Intensity level at mirror conforms to equation given in invention description. EFFECT: decreased divergence, low width of spectral line. 3 dwg