Joule-level three-wavelength tunable single-frequency pulse laser

Abstract

The invention provides a joule-level three-wavelength tunable single-frequency pulse laser which comprises a seed laser module, an oscillator, a multi-stage amplifier, a nonlinear conversion module and a three-wavelength and three-beam output switching module. According to the invention, hundred-hertz single-frequency pulse output with the total energy of 1064 nm, 532 nm and 355 nm as the joule level can be realized; the pulse laser can be used for satellite-borne hyperspectral laser radar to quantitatively obtain multi-parameter information of cloud-aerosol; the pulse laser can be used for asatellite-borne wind measurement laser radar to obtain global atmospheric wind field information at the height of 3 to 30 km; and the joule-level single-frequency pulse amplification problem, the single-frequency pulse high-efficiency frequency multiplication problem, the three-wavelength and three-beam switching problem and the three-wavelength energy tuning problem are mainly solved.

Description

technical field [0001] The invention relates to a Joule-level three-wavelength tunable single-frequency pulse laser. Background technique [0002] The focus of meteorological satellite detection is atmospheric temperature, humidity, pressure, wind, cloud, composition, space and other elements, among which the distribution of clouds and aerosols in the atmosphere is one of the most important factors affecting the global climate. , especially in the water circulation system, which can directly affect the radiation and heat balance of the earth-air system. The detection of cloud parameters helps to improve the accuracy of meteorological forecasts for the atmosphere, land and ocean surfaces, and can also provide guarantees for the establishment of long-term satellite climate data sets. Rainfall and storm information can be forecasted through cloud images; cloud top temperature and air pressure can be monitored and extracted, and convective weather can be warned in advance. The...

AI Technical Summary

Problems solved by technology

[0006] The current wind measurement methods in the Global Observing System have the following deficiencies: ground-based wind measurement is limited by land distribution, space-based wind measurement is limited by flight routes, and space-based wind measurement cannot obtain profile information

Therefore, the global three-dimensional wind field information, especially the high-precision wind field information over the tropical and southern hemisphere oceans, is extremely scarce.

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