title: Field experiment and image reconstruction using a Fourier telescopy imaging system over a 600-m-long horizontal path.
abstract: To confirm the effect of uplink atmospheric turbulence on Fourier telescopy (FT), we designed a system for far-field imaging, utilizing a T-type laser transmitting configuration with commercially available hardware, except for a green imaging laser. The horizontal light transmission distance for both uplink and downlink was ∼300  m. For both the transmitting and received beams, the height upon the ground was below 1 m. The imaging laser's pointing accuracy was ∼9.3  μrad. A novel image reconstruction approach was proposed, yielding significantly improved quality and Strehl ratio of reconstructed images. From the reconstruction result, we observed that the tip/tilt aberration is tolerated by the FT system even for Changchun's atmospheric coherence length parameter (r0) below 3 cm. The resolution of the reconstructed images was ∼0.615  μrad.
authors.forename: Shu-Hai
authors.initials: SH
authors.lastname: Yu
authors.forename: Lei
authors.initials: L
authors.lastname: Dong
authors.forename: Xin-Yue
authors.initials: XY
authors.lastname: Liu
authors.forename: Xu-Dong
authors.initials: XD
authors.lastname: Lin
authors.forename: Hao-Ran
authors.initials: HR
authors.lastname: Megn
authors.forename: Xing
authors.initials: X
authors.lastname: Zhong