Demonstration of a blue light transmitter with 100Mbps rate, 80° divergence angle, and 18mW optical power for underwater wireless optical communication based on laser diode and engineered diffuser

Qihang Sun; Yu Zhang; Zhepeng Huang; Yongqiang Kang; Yuan Peng; Biao Han

doi:10.1117/12.3018538

30 April 2024 Demonstration of a blue light transmitter with 100Mbps rate, 80° divergence angle and 18mW optical power for underwater wireless optical communication based on laser diode and engineered diffuser

Qihang Sun, Yu Zhang, Zhepeng Huang, Yongqiang Kang, Yuan Peng, Biao Han

Author Affiliations +

Proceedings Volume 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems; 1315311 (2024) https://doi.org/10.1117/12.3018538
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China

Abstract

Underwater wireless optical communication (UWOC) with blue-green light is a useful way to transmit data in ocean for short distance application, because it has high speed. In application, the transmitter should have larger divergence angle to make it easier to establish communication link, besides high modulated rate. Laser diode (LD) is suitable to design such transmitter, thanks to its simpler structure and much faster switching speed. However, it is difficult to be widespread used in ocean engineering because of its quite small divergence angle. For this, we present a transmitter based on blue LD and engineered diffuser. It has 100Mbps modulation rate, 80° divergence angle, and 18mW optical power. It could be used to transmit large volume data in short distance underwater communication.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Qihang Sun, Yu Zhang, Zhepeng Huang, Yongqiang Kang, Yuan Peng, and Biao Han "Demonstration of a blue light transmitter with 100Mbps rate, 80° divergence angle and 18mW optical power for underwater wireless optical communication based on laser diode and engineered diffuser", Proc. SPIE 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems, 1315311 (30 April 2024); https://doi.org/10.1117/12.3018538

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KEYWORDS

Transmitters

Diffusers

Beam divergence

Modulation

Engineering

Ocean optics

Semiconductor lasers

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