VERTICAL-CAVITY LASER WITH RADIATION OUTPUT THROUGH SURFACE; SET OF LASERS AND METHOD FOR RAISING LASER EFFICIENCY Russian patent published in 2002 - IPC

FIELD: laser engineering. SUBSTANCE: geometry of laser cavity dictates principal spatial or transverse resonant mode in proposed method and device. Cavity accommodates amplifying medium activated by energy source within first space causing thereby spontaneous and forced emission of energy which propagates within amplifying medium in direction transverse to principal resonant mode. This transverse energy emission pumps in its turn second space of amplifying medium located about first space. When emission intensity is sufficiently high, inversion and amplification are set up within second space. Optimization of cavity geometry so that principal resonant mode crosses both first and second spaces while surrounding first space being pumped provides for catching otherwise lost transversal energy of first space by main beam thereby raising total energy efficiency of laser. EFFECT: simplified design of vertical-cavity laser. 25 cl, 5 dwg