Control of laser radiation parameters

Narrowing of the emission spectrum of a wide-band laser and locking to one- and two-photon absorption lines of a medium with a light-induced anisotropy

A. P. Voitovich, O. E. Kostik, V. V. Mashko


Abstract: An experimental investigation was made of the spectral and energy characteristics of the radiation emitted by a dye laser with a ring resonator containing an absorbing medium (potassium vapor) in which an anisotropy was induced by a strong external optical wave. Narrowing of the dye output radiation to about 10 ^– 2 nm and locking of the emission spectrum to one- and two-photon absorption lines of the potassium vapor were observed. An investigation was made of the locking efficiency for different polarizations of the strong wave.

UDC: 621.373.826.038.824

PACS: 42.55.Mv, 42.60.Jf, 42.60.Fc

Received: 12.01.1990

 English version: Soviet Journal of Quantum Electronics, 1990, 20:7, 834–836

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