Underwater Wireless Optical Communications at 100 Mb/s using Integrated Dual-Color Micro-LEDs

Carreira, J. F. C.; Arvanitakis, Georgios N.; Griffiths, Alexander D.; McKendry, Jonathan J. D.; Xie, Enyuan; Kosman, John; Henderson, Robert K.; Gu, Erdan; Dawson, Martin D.

doi:10.1109/ipcon.2019.8908417

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…In order to combat the impact of the dead-time, arrays of SPADs working in parallel are used, also known as silicon photomultipliers (SiPM) or multi-pixel photon counter (MPPC), such that some of SPADs within SiPM are available for responding the incident light during the dead time [19][20][21]. It has been recently shown that SiPM is able to significantly enhance the sensitivity of the optical receiver in IM-DD UWOC systems [20,[22][23][24]. Therefore, SiPM can be a promising candidate in the realization of highly sensitive detection in the DPSK UWOC system.…”

Section: Introductionmentioning

confidence: 99%

Underwater Wireless Optical Communication Based on DPSK Modulation and Silicon Photomultiplier

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Underwater Wireless Optical Communication Based on DPSK Modulation and Silicon Photomultiplier

et al. 2020

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“…In [6], the communication rate by OOK modulation is much higher, but the photon utilization efficiency is relatively low. The communication rate of SPAD arrays is very high (1 Gbps) in analog output mode [8] and can reach up to 100 Mbps in digital-output mode [9]. However, SPAD arrays have a low detection sensitivity and require several hundred to several thousand photons to deliver one bit.…”

mentioning

confidence: 99%

Real-Time and High-Speed Underwater Photon-Counting Communication Based on SPAD and PPM Symbol Synchronization

Huang

Dai

et al. 2021

IEEE Photonics J.

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Photon-counting detectors can increase the range of underwater optical wireless communication (UWOC) by enhancing the detection sensitivity and have thus become an active research area in recent years. However, system performance still needs to be improved in the reported underwater photon-counting communication (UPCC) experiments. In this study, a real-time, high-speed UPCC system was designed and experimentally validated based on a single-photon avalanche diode (SPAD). A reliable symbol synchronization method based on pulse-position modulation (PPM) was developed. This method achieved slot synchronization by using a narrow-pulse-width laser and a simple matched filter and realizes frame synchronization through an improved synchronization sequence. In addition, channel errors were corrected by serially concatenated convolutionally coded PPM (SCPPM), and digital signals were processed in real time based on field-programmable gate arrays (FPGAs). Finally, desktop communication experiments were completed at a slot frequency of 25 MHz and a communication rate of 6.21 Mbps. The system exhibited a bit error rate (BER) of less than 10 -7 , a received optical power of only -84.3 dBm, and an efficiency of 1.35 photons per bit.

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Micro-LED Based Double-Sided Emission Display and Cross-Medium Communication

et al. 2022

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GaN micro-LEDs have been spotlighted as promising candidates for high-speed optical communication, which may become important components in 6G communication blueprint. To achieve a superior network covering sea, land and air for 6G communication, we demonstrated cross-medium communication based on an 80 µm double-sided emission micro-LED array. The high enough light output power radiated from both sides of the green micro-LED enabled interference-free signal transmission in different media. Data rates of 1.55 Gbps over the 3 m freespace link and 1.11 Gbps over the 3.4 m underwater link could be achieved simultaneously. Furthermore, parallel-connected micro-LEDs were utilized to demonstrate the feasibility of pattern display and communication, and expected to achieve longer communication distances in media such as underwater channels.

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Underwater Wireless Optical Communications at 100 Mb/s using Integrated Dual-Color Micro-LEDs

Abstract: Integrated blue-violet and blue-green micro-LED arrays, fabricated via a transfer printing method, were employed to demonstrate wavelength division multiplexing underwater data transmission at 100 Mb/s over up to 9 attenuation lengths in a 1.5 m long water tank.

Cited by 5 publications

References 8 publications

Underwater Wireless Optical Communication Based on DPSK Modulation and Silicon Photomultiplier

Underwater Wireless Optical Communication Based on DPSK Modulation and Silicon Photomultiplier

Real-Time and High-Speed Underwater Photon-Counting Communication Based on SPAD and PPM Symbol Synchronization

Micro-LED Based Double-Sided Emission Display and Cross-Medium Communication

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