Control of laser radiation parameters

Efficient 510 → 578-nm conversion of emission of copper vapour lasers

A. B. D'yachkov, V. P. Labozin

Institute of Molecular Physics, Russian Research Center "Kurchatov Institute", Moscow

Abstract: The results of experiments on the 510 → 578-nm conversion of high-power radiation from a copper vapour laser (CVL) in a dye cell are presented. The use of the efficient laser dye Pyrromethane 597 (PM-597) made it possible to convert the 120-W CVL radiation (72 W at 510 nm + 48 W at 578 nm) into 102-W radiation at 578 nm, which is equivalent to a conversion efficiency of 85%. Photostability of the dye in various solvents is studied. The photostability (more than 45 GJ mole^-1) of PM-597 in n-heptane is found to be higher than that of Rh 6G in ethanol.

PACS: 42.55.Lt, 42.55.Mv, 42.60.Lh

Received: 25.04.2002

 English version: Quantum Electronics, 2002, 32:9, 825–827

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