瑞利導(dǎo)星發(fā)射系統(tǒng)設(shè)計(jì)
[Abstract]:In astronomical observation Rayleigh laser guide star adaptive optical system can compensate for the influence of atmospheric turbulence on imaging and increase sky coverage. The ability to launch a qualified Rayleigh guide star is a prerequisite for this technology. In order to realize the application of Rayleigh laser guide star in astronomical observation, a Rayleigh guide star launching system is designed. Firstly, according to the basic requirements of Rayleigh laser guide star adaptive system, the effects of laser pulse energy and repetition rate are introduced. According to the turbulence theory, the influence of the optimal emission aperture of the emission system and the atmospheric turbulence on the light spot size of the guide star is analyzed, and then, according to the emission requirements, a Rayleigh guide star emission system is designed by using Zemax software. The optimum emission aperture of the system is 260 mm, the sampling layer is 10 ~ 11 km, the optimum focusing height of the guide star is 9.8 km, the ideal radius of the guide spot is 0.45 ", and the radius of the spot is less than 1" in the presence of atmospheric turbulence. Finally, the tolerance analysis of the system is carried out by using Zemax software. The results show that the system is relatively easy to process and adjust. The system meets the requirements of the laser guide star adaptive system, high practicability and universal design method.
【作者單位】: 中國(guó)科學(xué)院長(zhǎng)春光學(xué)精密機(jī)械與物理研究所應(yīng)用光學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院大學(xué);
【基金】:國(guó)家自然科學(xué)基金(11174274,11174279)
【分類(lèi)號(hào)】:P111
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