A laser generation and emission device for wireless energy transmission of space solar power plants

Abstract

The invention discloses a laser generation and emission device of wireless energy transmission of a space solar power station, and aims to solve the space solar energy transmission problem. The laser generation and emission device is composed of a power supply module, an main oscillator module, a beam splitting module, a phase position control module, a beam isolation module, an optical fiber laser gain module, a semiconductor pumping module, a phase position detection and control circuit module, a collimator array module, a beam sampling module and a beam detection module. The main oscillator module, the beam splitting module, the phase position control module, the beam isolation module and the optical fiber laser gain module are sequentially connected; the power supply module transforms an inputted primary power supply and provides the power supply to each sub module; and the collimator array module, the beam sampling module and the beam detection module are sequentially connected. The laser generation and emission device of the invention is suitable for the laser wireless energy transmission of the space solar power station, and is especially easy to realize the long-distance transmission and reception of the laser.

Description

technical field [0001] The invention relates to a laser generating and emitting device, in particular to a laser generating and emitting device in the field of wireless energy transmission of a space solar power station. Background technique [0002] Traditional energy sources such as coal, oil, and natural gas will develop to such an extent that they cannot support world development in the next few decades to more than a hundred years, and will have a negative impact on global climate change. Solar energy is a kind of renewable energy, which has obvious advantages such as cleanness and abundance. Space solar power plants can receive high-intensity sunlight because the sun’s rays will not be weakened by the atmosphere, and they will not be affected by weather, seasons, and day-night changes. The solar radiation they can receive is five times that of the ground. Utilizing space solar power plants to supply power to the ground in the form of unlimited power transmission, repl...

AI Technical Summary

Problems solved by technology

There are two problems in the Japan Aerospace Exploration Agency's plan. One is that the sunlight-laser conversion efficiency is very low in the way of solar-pumped solid-state lasers; the other is that the solar satellite platform has a high orbit and the ground laser receiving area is limited. The huge optical system compresses the divergence angle of the laser beam, which brings great difficulties to the manufacture and installation of the optical aperture of the laser emission system

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