Abstract
Output characteristics of the pulse-periodic solid-state laser pumped by diode arrays at a pump pulse repetition rate of 8...512 Hz were studied. Three pump types are used: longitudinal raster-lightguide, transverse, and combined ones. Diode arrays with a pulse power of ∼800 W, emitting area sizes of 5 × 25 mm2, and radiation divergence along two mutually perpendicular axes equal to 4° and 15°, respectively, were used as a pump source. The pump current pulse duration was varied within 100–350 µs. Three operating modes were studied: (i) free generation, (ii) passive Q-switch, and (iii) acousto-optic Q-switch ones. The lasing peak pulse power was (i) ∼2 kW(free generation mode), (ii) ∼1.5 MW (passive Q-switch mode), and (iii) ∼100 kW (acousto-optic Q-switch mode). The highest average lasing power was 150 W at a pump pulse repetition rate of 512 Hz. The highest pulsed lasing energy was 0.65 J.
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O. V. Buryak, A. Z. Venediktov, and A. B. Yastrebkov, RF Patent No. 2 361 342, Byull. Izobret., No. 19 (2009).
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Original Russian Text © O.V. Buryak, A.B. Yastrebkov, 2009, published in Kratkie Soobshcheniya po Fizike, 2009, Vol. 36, No. 12, pp. 12–16.
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Buryak, O.V., Yastrebkova, A.B. High-power pulse-periodic Nd3+-YAG laser with combined pumping by diode arrays. Bull. Lebedev Phys. Inst. 36, 353–355 (2009). https://doi.org/10.3103/S1068335609120033
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DOI: https://doi.org/10.3103/S1068335609120033