Wavefront Aberration Characterization and Correction for Laser Beam Propagating over Saline Water and Sands

Zhu, Songsong; Song, Hong; Yang, Ping; Liu, Hongbo; Lan, Ruihong; Liu, Yuan; Huang, Haocai; Qu, Fengzhong; Leng, Jianxing; Chen, Ying

doi:10.3182/20130410-3-cn-2034.00018

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2014

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“…Both the intensity and the phase of the laser beam are influenced by the atmospheric turbulence and the reliability and performance of WLC system are degraded [2]. In marine environment, the influence of atmospheric turbulence is even more complicated because of the combined effect of moisture, temperature gradient and wind [3][4][5]. The wavefront aberration caused by atmospheric turbulence needs to be predicted or corrected to achieve a high bandwidth for information transmission.…”

Section: Introductionmentioning

confidence: 99%

Measurement of wavefront aberration in laser beam propagating over water

Zhu

Song

Yang

et al. 2014

Oceans 2014 - Taipei

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Atmospheric turbulence is a main limiting factor to the application of wireless laser communication in marine environment, which causes intensity variation and wavefront aberration in the laser beam. Characterizing the wavefront aberration of the laser beam is an important step for mitigating the effect of turbulence. In this paper, we focus on measurement and analysis of wavefront aberration in laser beam propagating over a lake with a transmitter-receiver distance of about 70 meters. Information of wavefront of the laser beam is obtained with a Shack-Hartman wavefront sensor. Both the spatial and temporal characteristics of the wavefront aberration in the laser beam have been investigated and characterized.

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Section: Introductionmentioning

confidence: 99%