Modelling of the laser amplification process with allowance for the effect of the temperature distribution in an Yb : YAG gain element on the thermophysical and lasing characteristics of the medium
| Autor: | G. V. Kuptsov, V. A. Petrov, A. V. Kirpichnikov, V. V. Petrov, A. V. Laptev, Efim V Pestryakov |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry Amplifier Process (computing) Physics::Optics Statistical and Nonlinear Physics Allowance (engineering) Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Pulse (physics) Optics law Electrical and Electronic Engineering Pulse energy business Lasing threshold Diode |
| Zdroj: | Quantum Electronics. 50:315-320 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | A time-dependent three-dimensional model for the laser amplification process has been constructed with allowance for the effect of the temperature distribution on the thermophysical and lasing characteristics of gain media. We have performed numerical modelling of the laser amplification process in the gain elements of a two-stage subjoule-level cryogenic laser amplifier operating at a pulse repetition rate of up to 1 kHz. It has been shown that taking into account the temperature distribution is of critical importance in calculation of cryogenically cooled laser amplifiers pumped with high-power diodes. We have found optimal diode pump parameters at which the maximum achievable pulse energy at the amplifier output can reach 300 and 570 mJ at pulse repetition rates of 1000 and 500 Hz, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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