SET OF EXTREMELY NARROW-BAND TWO-CHAMBER GAS-DISCHARGE LASERS CHARACTERIZED IN HIGH PULSE REPETITION FREQUENCY

摘要

FIELD: electric-discharge lasers including narrow-band gas-discharge ones characterized in high pulse repetition frequency. ^ SUBSTANCE: each of proposed lasers designed for producing pulses at repetition frequency of 4000 Hz or higher at pulse energy about 5 to 10 mJ or higher affording radiation power output of 20 to 40 W or higher has two separate discharge chambers of which one is part of master oscillator generating narrow-band prime beam which is amplified in second discharge chamber. Working chambers can be controlled separately. Each working chamber has one tangential-flow fan producing gas flow sufficient for operation at pulse repetition frequency of 4000 Hz. Master oscillator is provided with radiation-line narrowing module incorporating fast-response adjusting mirror. ^ EFFECT: enhanced quality of laser pulse radiation beams and power output. ^ 78 cl, 80 dwg