A novel free-space optic communication

Cheng Wang; Jinsong Liu; Kaining Wu; Zhemin Du; Shubin Wu

doi:10.1117/12.637118

9 December 2005 A novel free-space optic communication

Cheng Wang, Jinsong Liu, Kaining Wu, Zhemin Du, Shubin Wu

Proceedings Volume 6021, Optical Transmission, Switching, and Subsystems III; 60213E (2005) https://doi.org/10.1117/12.637118
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

In this paper, we introduce a novel method for free-space optic communication. Normally, the free-space optic communication is sensitive to atmospheric turbulence. In order to overcome the weakness, we utilize two differential modulation optical beams, which improve markedly the quality of free-space optic communication. The experiments, based on two wave mixing scheme were¹ done using photorefractive crystal LiNbO3. Photorefractive grating will be changed with the electrical signals, which will results in the energy transfer process between two beams, and then form two differential modulation optical beams. Firstly, we will present a brief introduction to the theoretical arguments for energy transfer process in two wave mixing experiments. After briefly explaining the method to achieve two differential modulation optical beams we discuss the experiments for free-space optic communication. Finally, we conclude that the novel method improve markedly the quality of free-space optic communication.

Citation Download Citation

Cheng Wang, Jinsong Liu, Kaining Wu, Zhemin Du, and Shubin Wu "A novel free-space optic communication", Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 60213E (9 December 2005); https://doi.org/10.1117/12.637118

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KEYWORDS

Free space optics

Free space optical communications

Two wave mixing

Modulation

Crystals

Electrodes

Refraction

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