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JOURNALS // Kvantovaya Elektronika // Archive

Kvantovaya Elektronika, 1991 Volume 18, Number 1, Pages 76–78 (Mi qe3713)

Control of laser radiation parameters

Stabilization of the beat regime and alternating-sign optical nonreciprocity in the case of time-dependent self-diffraction of self-pumping waves in the active medium of a ring solid state laser

N. V. Kravtsov, S. V. Parfenov, A. N. Shelaev


Abstract: A new method is proposed for controlling the amplitude-frequency characteristics of a rotating ring solid-state laser with a homogeneously broadened gain profile of the active medium operating under mode-locked conditions. This method involves the use of ultrashort self-pumping pulses generated by a time-dependent diffraction acoustooptic feedback loop and characterized by a Doppler-modulated optical frequency. It was found experimentally that time-dependent self-diffraction of the main and self-pumping ultrashort pulses by interference population-inversion gratings induced in the active medium gives rise to a new nonreciprocal optical effect (self-induced alternating-sign difference between the frequencies of the counterpropagating waves) and stabilizes the beat regime in such a ring laser.

UDC: 621.378.3.826.038.825

PACS: 42.55.Rz, 42.60.Jf, 42.60.Lh, 42.60.Fc, 42.65.Re, 42.60.Da

Received: 12.07.1990


 English version:
Soviet Journal of Quantum Electronics, 1991, 21:1, 69–71

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