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Multistage Diode-Pumped Nd:YAG Optical Amplifier with Correction of Amplified Laser Beam Parameters by Thermally Induced Lenses of Active Elements
Abstract
Characteristics of the Nd:YAG multistage optical amplifier of laser beam, the spatial parameters of which are corrected by the thermal lenses formed in the active elements of each amplifier cascade, have been studied. The crystals Nd:YAG pumped by the laser diode units in accordance with the transversal scheme have been used as the amplifier active elements. It has been shown that the removal of lensecompensators allows one to reduce total optical losses of the amplifier and enhance its compactness. At comparable output power levels, the optical losses of an optical amplifier with five amplification stages and correction of the characteristics of the amplified beam by thermally induced lenses of active elements are 16 %, and its linear dimensions are 13 % less than similar indicators for the five-stage amplification system with 4 two-lens compensators between amplification stages.
About the Authors
M. V. Bogdanovich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus;
SSPA “Optics, Optoelectronics, and Laser Technology”
Russian Federation
Russian Federation
Minsk
A. V. Grigor’ev
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
Minsk
V. N. Dudikov
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus;
SSPA “Optics, Optoelectronics, and Laser Technology”
Russian Federation
Russian Federation
Minsk
A. G. Ryabtsev
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus;
SSPA “Optics, Optoelectronics, and Laser Technology”
Russian Federation
Russian Federation
Minsk
G. I. Ryabtsev
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
Minsk
P. O. Tatura
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus;
SSPA “Optics, Optoelectronics, and Laser Technology”
Russian Federation
Russian Federation
Minsk
L. L. Teplyashin
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
Minsk
G. S. Boltaev
U. A. Arifov Institute of Ion-Plasma and Laser Technologies, Academy of Sciences of the Republic Uzbekistan
Uzbekistan
Uzbekistan
Tashkent
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Review
For citations:
Bogdanovich M.V., Grigor’ev A.V., Dudikov V.N., Ryabtsev A.G., Ryabtsev G.I., Tatura P.O., Teplyashin L.L., Boltaev G.S. Multistage Diode-Pumped Nd:YAG Optical Amplifier with Correction of Amplified Laser Beam Parameters by Thermally Induced Lenses of Active Elements. Zhurnal Prikladnoii Spektroskopii. 2024;91(3):454-457. (In Russ.)
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