Lasers

Generation of narrow-band radiation in a system with a monolithic ring YAG laser and a slab amplifier

I. V. Golovnin^a, V. M. Gordienko^a, A. I. Kovrigin^a, A. V. Kudryashov^b, G. D. Laptev^a, A. V. Seliverstov<sup>b

a</sup> International Laser Center of Moscow State University
^b Research Centre for Technological Lasers Sciences, Shatura Moscow region

Abstract: A solid-state laser was developed on the basis of a highly stable cw narrow-band monolithic YAG laser pumped by semi-conductor diode lasers, a system for shaping a pulse of given duration, and a multipass slab amplifier. The spectral and power characteristics of the YAG laser acting as a master oscillator were investigated. An interferometric study was made of the thermal distortions of the laser beam in the slab amplifier where the ray paths were zigzag-shaped. The signal from the master oscillator was amplified by a factor of 7×10⁴ in the four-pass slab amplifier without distortion of the spatial characteristics of the laser beam.

PACS: 42.55.Rz, 42.60.Da

Received: 30.09.1993

 English version: Quantum Electronics, 1994, 24:4, 284–286

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