Complete characterization of ultrashort optical pulses with a phase-shifting wedged reversal shearing interferometer  

作　　者：Billy Lam Chunlei Guo 

机构地区：[1]The Institute of Optics,University of Rochester,Rochester,NY 14627,USA [2]Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,130033 Changchun,China

出　　处：《Light(Science & Applications)》2018年第1期755-765,共11页光（科学与应用)（英文版）

基　　金：supported by Bill&Melinda Gates Foundation[OPP1157723];AlchLight.

摘　　要：The ability of an interferometer to characterize the spatial information of a light beam is often limited by the temporal profile of the beam,with femtosecond pulse characterization being particularly challenging.In this study,we developed a simple,stable,controllable shearing and vectorial phase-shifting wedged reversal shearing interferometer that is able to characterize all types of coherent and partially coherent light beams.The proposed interferometer consists of only a single beam splitter cube with one wedged entrance face and is insensitive to environmental vibration due to its common path configuration.A near zero-path length difference of the proposed interferometer ensures its operation for ultrashort pulses,providing,for the first time,a simple and stable interferometric tool to fully characterize sub-100 fs laser pulses.All common beam characterization can be carried out with the interferometer,such as the amplitude,phase,polarization,wavelength,and pulse duration.Furthermore,this technique is sensitive to the wavefront tilt and can be used for precise beam alignment.Therefore,this interferometer can be an essential tool for beam characterization,optical imaging,and the testing required for a wide range of applications,including astronomy,biomedicine,ophthalmology,optical testing and imaging systems,and adaptive optics.

关 键 词：INTERFEROMETER ULTRASHORT SHEARING 

分 类 号：TN2[电子电信—物理电子学]