Repetitively pulsed Nd-glass slab lasers

The possibility of obtaining high laser output energies at a 1.32- mu m wavelength using thin LiNdLa phosphate glass slabs with a high Nd/sup 3+/ concentration is discussed. In the experiments, 3*14*125-mm slabs were prepared from LiNdLa phosphate glass with a Nd-concentration of 1.2*10/sup 21/ cm/s...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1989-09, Vol.25 (9), p.1979-1980
Main Authors: Denker, B.I., Kertesz, I., Kirjanov, A.V., Kroo, N., Maljutin, A.A., Osiko, V.V., Sverchkov, S.E., Sverchkov, U.E.
Format: Article
Language:English
Subjects:
420300 - Engineering- Lasers- (-1989)
ALKALI METALS
AMPLIFICATION
CHEMICAL COMPOSITION
Cooling
DATA ANALYSIS
Doped-insulator lasers and other solid state lasers
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY SPECTRA
ENGINEERING
Exact sciences and technology
FUNCTION GENERATORS
Fundamental areas of phenomenology (including applications)
GAIN
Geometrical optics
GLASS
LANTHANUM
Laser excitation
LASER MATERIALS
Laser transitions
LASERS
LITHIUM
MATERIALS
METALS
Mirrors
NEODYMIUM LASERS
Optical pulses
Optics
Physics
Power lasers
PULSE GENERATORS
Pump lasers
RARE EARTHS
SLABS
SOLID STATE LASERS
SPECTRA
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Summary:The possibility of obtaining high laser output energies at a 1.32- mu m wavelength using thin LiNdLa phosphate glass slabs with a high Nd/sup 3+/ concentration is discussed. In the experiments, 3*14*125-mm slabs were prepared from LiNdLa phosphate glass with a Nd-concentration of 1.2*10/sup 21/ cm/sup -3/. The facets of the slabs were not antireflection-coated. They were tested in a silver-coated quartz tube reflector of 25-mm diameter and pumped by 450- mu s pulses from a flash lamp with a 120-mm arc length. In this construction the light, which passes through the slab, returns to it after reflection from the tube surface. Most of the radiation falls on the wider side of the slab at large angles of incidence, thus maximizing its path inside the slab. The quartz reflector was water cooled. The 150-mm laser resonator was formed by two flat mirrors. At 1.32- mu m lasing wavelength an output mirror of r=95% reflectivity was used with less than 10% reflectivity at 1.32 mu m.< >
ISSN:0018-9197
1558-1713
DOI:10.1109/3.35220