现代应用物理2025，Vol.16Issue(3)：43-49,7.DOI:10.12061/j.issn.2095-6223.202502004
激光系统主望远镜尺寸优化问题研究
Optimization of Main Telescope Aperture for Laser Systems
摘要
Abstract
The design of the main telescope aperture for laser systems needs to consider the following effects such as mechanical jitter,laser beam quality,atmospheric turbulence,and thermal blooming.To increase the laser intensity on the focal plane,one can increase the diameter of the telescope to reduce the effects of thermal blooming and diffraction.However,to reduce manufacturing difficulties and lower the development costs of laser systems,it is necessary to minimize the diameter of the main telescope as much as possible under the premise that the impacts of thermal blooming and diffraction are acceptable.Based on the scaling law for the radial beam dispersion caused by linear effects and for the relative peak power intensity under thermal blooming effect,this paper proposes a calculation method for the threshold of the main telescope aperture in a laser system under atmospheric propagation effects.The diameter threshold of the main telescope is calculated for a scenario with an elevation angle of 90° and a propagation distance of 30 km.The method proposed in this paper provides a reference for the design of the main telescope aperture size in laser systems,while balancing the reduction of development costs with the mitigation of atmospheric propagation effects on laser systems.The results indicate that using the HV 5/7 turbulence model with consideration of thermal blooming effects,for a laser system with a beam quality of 3.0,total output power of 100 kW,mechanical jitter of 10 μrad,and laser wavelength of 1.06 μm,the diameter threshold for the main telescope is 0.45 m when the diffraction effects and thermal blooming effects are within acceptable limits.关键词
激光系统/大气传输/定标规律/主望远镜直径/阈值Key words
laser system/atmospheric propagation/scaling laws/diameter of the main telescope/threshold分类
信息技术与安全科学引用本文复制引用
关奇,杨鹏翎,陶蒙蒙,李振锋,张冉,吴振杰,沈炎龙,赵晓帆..激光系统主望远镜尺寸优化问题研究[J].现代应用物理,2025,16(3):43-49,7.基金项目
国家自然科学基金青年基金资助项目(52106222) （52106222）
