Method of wavefront tilt correction for optical heterodyne detection systems under strong turbulence

Jing-song Xiang; Xin Tian; Le-chun Pan

doi:10.1117/12.2069714

21 August 2014 Method of wavefront tilt correction for optical heterodyne detection systems under strong turbulence

Jing-song Xiang, Xin Tian, Le-chun Pan

Proceedings Volume 9233, International Symposium on Photonics and Optoelectronics 2014; 92330P (2014) https://doi.org/10.1117/12.2069714
Event: International Symposium on Photonics and Optoelectronics (SOPO 2014), 2014, Suzhou, China

Abstract

Atmospheric turbulence decreases the heterodyne mixing efficiency of the optical heterodyne detection systems. Wavefront tilt correction is often used to improve the optical heterodyne mixing efficiency. But the performance of traditional centroid tracking tilt correction is poor under strong turbulence conditions. In this paper, a tilt correction method which tracking the peak value of laser spot on focal plane is proposed. Simulation results show that, under strong turbulence conditions, the performance of peak value tracking tilt correction is distinctly better than that of traditional centroid tracking tilt correction method, and the phenomenon of large antenna’s performance inferior to small antenna’s performance which may be occurred in centroid tracking tilt correction method can also be avoid in peak value tracking tilt correction method.

Citation Download Citation

Jing-song Xiang, Xin Tian, and Le-chun Pan "Method of wavefront tilt correction for optical heterodyne detection systems under strong turbulence", Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 92330P (21 August 2014); https://doi.org/10.1117/12.2069714

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