作　　者： ; ; ; ; ;

机构地区： 中国科学院上海光学精密机械研究所

出　　处： 《激光与光电子学进展》 2004年第4期14-19,共6页

摘　　要： 星间激光通信系统要求发射的激光光束具有高度的平行性。光学衍射极限是光束在有限孔径下所能达到的最小发散度,此时波面具有大约0.3l的波面相差。针对星间激光通信波面检测领域,较全面地总结了各类现有检测方法及特点,并给出了一种新颖的互补剪切干涉法的结构与应用实例,最后针对星间激光通信光束波面检测的可行性进行了比较。 Inter-orbit satellite laser communication system requests the emission laser beam to have high parallelism. The optical diffractional limitation is the minimum divergence of a laser beam through a finite aperture. In this circumstance, the wavefront has approximately 0.3l of optical phase difference against a planar wavefront. The paper introduces various kinds of wavefront measuring methods in existence and presents an original complementary shearing interferometry and its applications. Moreover, according to the peculiarity of a diffraction limited laser beam, we compare the feasibility of all the wavefront measuring methods.

关 键 词： 星间激光通信 波前传感器 剪切干涉仪 点衍射干涉仪 哈特曼方法 光学衍射

领　　域： [电子电信] [电子电信]