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Physical processes in active media
Beam depolarization and gain saturation in neodymium rods 85 mm in diameter
V. N. Sukhanov, A. A. Ugodenko
Abstract:
An experimental investigation was made of the depolarization and gain saturation in rod amplifiers utilizing phosphate (OPS1110) and silicate (GLS6) neodymium glass active elements 85 mm in diameter and 300 mm long. The pulse duration was 35 ns. The total energy losses due to the depolarization were determined for a beam diameter of 80 mm (in the phosphate glass the losses reached 3–6%, whereas in the silicate glass they were 4–7%). The distributions of the losses across the rod cross section were found for different radial distributions of the small-signal gain. The gain saturation was determined for energy densities 1–6 J/cm2 at the amplifier input. The saturation value of the energy density amounted to 4.5 ± 0.4 J/cm2 for the phosphate glass and 8.0 ± 0.7 J/cm2 for the silicate glass.
Received: 09.02.1989
Citation:
V. N. Sukhanov, A. A. Ugodenko, “Beam depolarization and gain saturation in neodymium rods 85 mm in diameter”, Kvantovaya Elektronika, 17:4 (1990), 422–424 [Sov J Quantum Electron, 20:4 (1990), 356–358]
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https://www.mathnet.ru/eng/qe5684 https://www.mathnet.ru/eng/qe/v17/i4/p422
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Abstract page: | 113 | Full-text PDF : | 55 | First page: | 1 |
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