RING LASER Russian patent published in 1996 - IPC

FIELD: quantum electronics; heavy-power narrow-band coherent radiation pulse sources. SUBSTANCE: new optical ring resonator optically coupled with first optical ring resonator through at least one reflector is introduced; active gate is located in second resonator on optical axis; when polarized reflector is used, second active gate is introduced and installed in first resonator on optical axis; active element, first active gate, polarized reflector, and second active gate are arranged in tandem in direction of radiation propagation. At least one more active element is installed in second optical ring resonator and anti-reflecting filter is placed in one of optical ring resonators. EFFECT: enlarged functional capabilities due to increased spectral brightness of laser radiation. 5 dwg