345 m underwater optical wireless communication with 270 Gbps data rate based on a green laser diode with NRZ-OOK modulation

Liu, Xiaoyan; Yi, Suyu; Zhou, Xiaolin; Fang, Zhaoxi; Qiu, Zhijun; Hu, Laigui; Cong, Chunxiao; Zheng, Lirong; Liu, Ran; Tian, Pengfei

doi:10.1364/oe.25.027937

Cited by 173 publications

(41 citation statements)

References 15 publications

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“…Similar to acoustic modems, optical transceivers are also designed to perform best in some scenarios; therefore, the best optical modem that outperforms all others in all possible conditions does not exist. Specifically, we can divide the optical modems into models composed of a light emitting diode (LED)-based transmitter designed for hemispherical communications [8,25,72,73] and models composed of a high-directional laser-based transmitter [74][75][76][77][78][79]. Although the latter achieves a throughput from 10 to 100 times higher than the former, we focus on LED-based modems, as laser-based transmitters require perfect alignment between the transmitter and receiver, a condition that a mobile vehicle can fulfill only during a docking operation or if the modems are equipped with beam-steering capabilities, such as the SA Photonics Neptune modem [80].…”

Section: Optical Communicationsmentioning

confidence: 99%

Wireless Remote Control for Underwater Vehicles

Campagnaro

Signori

Zorzi

2020

JMSE

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Nowadays, the increasing availability of commercial off-the-shelf underwater acoustic and non-acoustic (e.g., optical and electromagnetic) modems that can be employed for both short-range broadband and long-range low-rate communication, the increasing level of autonomy of underwater vehicles, and the refinement of their underwater navigation systems pave the way for several new applications, such as data muling from underwater sensor networks and the transmission of real-time video streams underwater. In addition, these new developments inspired many companies to start designing hybrid wireless-driven underwater vehicles specifically tailored for off-shore operations and that are able to behave either as remotely operated vehicles (ROVs) or as autonomous underwater vehicles (AUVs), depending on both the type of mission they are required to perform and the limitations imposed by underwater communication channels. In this paper, we evaluate the actual quality of service (QoS) achievable with an underwater wireless-piloted vehicle, addressing the realistic aspects found in the underwater domain, first reviewing the current state-of-the-art of communication technologies and then proposing the list of application streams needed for control of the underwater vehicle, grouping them in different working modes according to the level of autonomy required by the off-shore mission. The proposed system is finally evaluated by employing the DESERT Underwater simulation framework by specifically analyzing the QoS that can be provided to each application stream when using a multimodal underwater communication system specifically designed to support different traffic-based QoSs. Both the analysis and the results show that changes in the underwater environment have a strong impact on the range and on the stability of the communication link.

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Section: Optical Communicationsmentioning

confidence: 99%

Wireless Remote Control for Underwater Vehicles

Campagnaro

Signori

Zorzi

2020

JMSE

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“…Considering that laser diodes (LDs) are the efficient light source and easy to integrate, LD-enabled optical wireless communication (OWC) is an emerging technology for realizing highconfidentiality and high-speed point-to-point (PtP), vehicle-tovehicle, and white-lighting data access links in free-space communication [1][2][3][4][5][6], indoor communication [7,8], underwater communication [9][10][11], and optical networks [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Vector Rayleigh Diffraction of High-Power Laser Diode Beam in Optical Communication

Zhang

et al. 2020

International Journal of Optics

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Laser diodes (LDs) are widely used in optical wireless communication (OWC) and optical networks, and proper theoretical models are needed to precisely describe the complicated beam field of LDs. A novel mathematical model is proposed to describe the vectorial field of nonparaxial LD beams. Laser beam propagation is studied using the vector Rayleigh diffraction integrals, and the stationary phase method is used to find the asymptotic expansion of diffraction integral. The far-field distribution of the LD beam in the plane parallel and perpendicular to the junction is considered in detail, and the computed intensity distributions of the theory are compared with the corresponding measurements. This model is precise for single transverse model beam of LDs and can be applied to describe the LD beams in OWC and optical networks.

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“…On the other hand, RF communication in the underwater environment is also limited by the high conductivity of seawater that attenuates the radio waves [16,17]. To circumvent these issues, UWOC has been proposed as an alternative solution to provide a reliable and stable real-time high-data-rate transmission of up to Gbps in the underwater environment with distances of up to hundreds of meters long [18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet-to-blue color-converting scintillating-fibers photoreceiver for 375-nm laser-based underwater wireless optical communication

et al. 2019

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Underwater wireless optical communication (UWOC) can offer reliable and secure connectivity for enabling future internet-of-underwater-things (IoUT), owing to its unlicensed spectrum and high transmission speed. However, a critical bottleneck lies in the strict requirement of pointing, acquisition, and tracking (PAT), for effective recovery of modulated optical signals at the receiver end. A large-area, high bandwidth, and wide-angle-of-view photoreceiver is therefore crucial for establishing a high-speed yet reliable communication link under non-directional pointing in a turbulent underwater environment. In this work, we demonstrated a large-area, of up to a few tens of cm 2 , photoreceiver design based on ultraviolet(UV)-to-blue color-converting plastic scintillating fibers, and yet offering high 3-dB bandwidth of up to 86.13 MHz. Tapping on the large modulation bandwidth, we demonstrated a high data rate of 250 Mbps at bit-error ratio (BER) of 2.2 × 10 −3 using non-return-to-zero on-off keying (NRZ-OOK) pseudorandom binary sequence (PRBS) 2 10-1 data stream, a 375-nm laser-based communication link over the 1.15-m water channel. This proof-of-concept demonstration opens the pathway for revolutionizing the photodetection scheme in UWOC, and for non-line-of-sight (NLOS) free-space optical communication.

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345 m underwater optical wireless communication with 270 Gbps data rate based on a green laser diode with NRZ-OOK modulation

Cited by 173 publications

References 15 publications

Wireless Remote Control for Underwater Vehicles

Wireless Remote Control for Underwater Vehicles

Vector Rayleigh Diffraction of High-Power Laser Diode Beam in Optical Communication

Ultraviolet-to-blue color-converting scintillating-fibers photoreceiver for 375-nm laser-based underwater wireless optical communication

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