Demonstration of a free-space optical communication system using a solar-pumped laser as signal transmitter

Z. Guan; C. M. Zhao; S. H. Yang; Y. Wang; J. Y. Ke; H. Y. Zhang

doi:10.1088/1612-202X/aa688a

Demonstration of a free-space optical communication system using a solar-pumped laser as signal transmitter

Z. Guan, C. M. Zhao, S. H. Yang, Y. Wang, J. Y. Ke, H. Y. Zhang

School of Optics and Photonics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

A free-space optical communication system with a sun light directly pumped laser as the signal transmitter was demonstrated. A 0.6 × 0.6 m Fresnel lens was used as the primary concentrator to collect the solar light. 6.8 W continuous wave laser power was obtained from a 4 mm diameter grooved Nd:YAG rod. The output intensity was modulated with a video signal via a LiNbO₃ Mach-Zehnder optoelectronic modulator. The video signal with a resolution of 1920 ^∗ 1080/frame and the frame rate of 25 Hz was transmitted over five-meter free-space in real time with high fidelity. The transmission rate was 125 Mbps and bit error rate was lower than 10^-6. This research shows the feasibility of applying a solar light directly pumped laser for free-space optical communication, which is significant for telecommunications between satellites.

Original language	English
Article number	055804
Journal	Laser Physics Letters
Volume	14
Issue number	5
DOIs	https://doi.org/10.1088/1612-202X/aa688a
Publication status	Published - May 2017

Keywords

optical communication
solar energy
solid-state lasers

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10.1088/1612-202X/aa688a

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title = "Demonstration of a free-space optical communication system using a solar-pumped laser as signal transmitter",

abstract = "A free-space optical communication system with a sun light directly pumped laser as the signal transmitter was demonstrated. A 0.6 × 0.6 m Fresnel lens was used as the primary concentrator to collect the solar light. 6.8 W continuous wave laser power was obtained from a 4 mm diameter grooved Nd:YAG rod. The output intensity was modulated with a video signal via a LiNbO3 Mach-Zehnder optoelectronic modulator. The video signal with a resolution of 1920 ∗ 1080/frame and the frame rate of 25 Hz was transmitted over five-meter free-space in real time with high fidelity. The transmission rate was 125 Mbps and bit error rate was lower than 10-6. This research shows the feasibility of applying a solar light directly pumped laser for free-space optical communication, which is significant for telecommunications between satellites.",

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AU - Ke, J. Y.

AU - Zhang, H. Y.

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Demonstration of a free-space optical communication system using a solar-pumped laser as signal transmitter

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