Control of laser radiation parameters

Tuning of the emission frequency of ring Nd³⁺ : YAG chip lasers

N. N. Kravtsov, N. M. Shabat'ko

M. V. Lomonosov Moscow State University, Faculty of Physics

Abstract: Piezoelectric tuning of the emission frequency was achieved in monolithic ring Nd³⁺: YAG laser with a nonplanar cavity. The maximum tuning range was 2.3 GHz when the ray-contour perimeter was 30 mm. Under conditions of resonant modulation of mechanical stresses the rate of tuning could reach 35 MHz/V. Qualitative estimates were obtained of the contributions made to the change in the Nd³⁺ : YAG emission frequency by the deformation of the ray contour and by the photoelasticity effect when the Nd³⁺: YAG crystal was mechanically stressed.

PACS: 42.55.Rz, 42.60.Fc

Received: 30.12.1994

 English version: Quantum Electronics, 1995, 25:8, 762–764

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