Title :
Measurement of wavefront aberration in laser beam propagating over water
Author :
Songsong Zhu ; Hong Song ; Ping Yang ; Jing Xu ; Fengzhong Qu ; Haocai Huang ; Han Ge ; Jun Han ; Jianxing Leng
Author_Institution :
Ocean Coll., Zhejiang Univ., Hangzhou, China
Abstract :
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.
Keywords :
atmospheric turbulence; hydrological equipment; lakes; laser beams; oceanographic equipment; wavefront sensors; Shack-Hartman wavefront sensor; atmospheric turbulence effect mitigation; lake laser beam propagation wavefront aberration analysis; lake laser beam propagation wavefront aberration measurement; laser beam intensity variation; laser beam wavefront aberration characterization; laser beam wavefront information; marine environment wireless laser communication application; transmitter-receiver distance; water laser beam propagation; wavefront aberration measurement; wavefront aberration spatial characteristic; wavefront aberration temporal characteristic; Adaptive optics; Atmospheric measurements; Atmospheric waves; Laser beams; Measurement by laser beam; Optical transmitters; Sea measurements; laser beam propagation; measurement; spatial; temporal; wavefront aberration;
Conference_Titel :
OCEANS 2014 - TAIPEI
Conference_Location :
Taipei
Print_ISBN :
978-1-4799-3645-8
DOI :
10.1109/OCEANS-TAIPEI.2014.6964494
