gyroscope that consists of a ring laser having two independent counter-propagating resonant modes over the same path, whereat the difference in phase is used to detect rotation, güroskoop, mis koosneb rõngaslaserist, mis kasutab samas sihis kahte sõltumatut vastulihtendavat resonantsrežiimi, kusjuures faaside erinevust kasutatakse pöörlemise tuvastamiseks