Tricolor visible-light laser diodes based visible light communication operated at 40665 Gbit/s and 2 m free-space transmission

Wei, Liang; Chow, Chi‐Wai; Chen, Guan Hong; Liu, Yang; Yeh, Chien Hung; Hsu, Chin Wei

doi:10.1364/oe.27.025072

Cited by 69 publications

(19 citation statements)

References 12 publications

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“…[ 34 ] In addition, the polarization multiplexing technology is utilized to improve the data rate beyond 40 Gbps. [ 36 ]…”

Section: Resultsmentioning

confidence: 99%

“…[ 35 ] Wei et al used the bit‐loading, power‐loading, and polarization multiplexing technologies to improve the data rate beyond 40 Gbps. [ 36 ] Meanwhile, the RGB‐LDs‐based underwater OWC at 9.51 Gbps over 10 m was also reported [ 37 ] ; however, its color‐rendering index (CRI) is unqualified for lighting due to the narrow spectral linewidth. After adding the yellow LED (Y‐LED) with a wider emission spectrum, Janjua et al reported the RGV‐LDs+Y‐LED mixed white light with a high CRI beyond 85.…”

Section: Introductionmentioning

confidence: 99%

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Compact High‐Power Visible Laser Diode Wavelength Division Multiplexing for White‐Light Communication

Wang

Cheng

et al. 2021

Advanced Photonics Research

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For compact ultrahigh‐power lighting and high‐speed optical wireless communication (OWC) purposes, the red/green/violet laser diodes (R/G/V‐LDs) moduled with specific Subminiature A (SMA) connectors are used for cold white‐light mixing and direct digital encoding. Even with hybridizing a high‐power yellow light‐emitting diode (LED) for high color‐rendering index lighting, such a R/G/V/Y design can miniaturize its volume to W × L × H = 6 × 5.4 × 2 cm3 (only 1/310 of the conventional bulky setup). The R/G/V‐LDs are individually encoded by 16 quadrature amplitude modulation orthogonal frequency‐division multiplexing (16‐QAM OFDM) data to demonstrate the visible wavelength division multiplexing (VWDM). Such R/G/V‐LD VWDM transmitters provide 8.8/5.2/7.2 Gbps modulation to achieve the total data rate as high as 21.2 Gbps after employing the power preleveling technique. Such high‐power R/G/V‐LDs under optimized bias currents deliver an output power of 102/97/129 mW, which can offer a high illuminance of 12 800 lux within a divergent angle of 54° at a distance of 0.5 m. To date, such ultrahigh‐power compact R/G/V‐LDs with lighting VWDM capability beyond 20 Gbps also enable the possibility of network coverage for B5G/6 G and Industry 4.0 applications.

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“…[ 34 ] In addition, the polarization multiplexing technology is utilized to improve the data rate beyond 40 Gbps. [ 36 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact High‐Power Visible Laser Diode Wavelength Division Multiplexing for White‐Light Communication

Wang

Cheng

et al. 2021

Advanced Photonics Research

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“…Line of sight is required between the transmitting site and the receiving end for FSO communications. License-free propagation, large available bandwidth, high directivity, high reliability, and strong confidentiality characteristics have made FSO communications very popular [1]- [6]. As wireless broadband access moves from 2.4 GHz wireless fidelity (WiFi) to 5 GHz WiFi, mobile telecommunication moves from 4G to 5G, and CATV moves from…”

Section: Introductionmentioning

confidence: 99%

A 448-Gb/s PAM4 FSO Communication With Polarization-Multiplexing Injection-Locked VCSELs Through 600 M Free-Space Link

Tsai

et al. 2020

IEEE Access

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A 448-Gb/s four-level pulse amplitude modulation (PAM4) free-space optical (FSO) communication through 600 m free-space link was constructed, utilizing polarization-multiplexing injection-locked vertical-cavity surface-emitting lasers (VCSELs) for presentation. When uniting fourwavelength polarization-multiplexing and PAM4 modulation schemes, the transmission capacity of FSO communications is substantially multiplied, with an aggregate transmission rate of 448 Gb/s [56 Gb/s PAM4/wavelength × 4 wavelengths × 2 polarizations (x-and y-polarizations)]. The results show that four 1.55 µm VCSEL transmitters with injection locking technique are sufficiently powerful for 448 Gb/s PAM4 signal transmission. Adopting a tunable optical band-pass filter and a polarization beam splitter for wavelength filtering and polarization de-multiplexing, the polarized wavelengths are effectually filtered and de-multiplexed in each polarized state. As the polarization state is well preserved in the scenario over 600 m free-space transmission, a sophisticated polarization tracker is not required in this proposed FSO communication. High bit error rate performance and accepted PAM4 eye diagrams are attained through 600 m free-space transmission. The four-wavelength polarization-multiplexing PAM4 FSO communication established here reveals the prominent benefits of high aggregate transmission capacity and long-distance free-space link.

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“…Chi et al [10 ] reported 9 Gbit/s VLC system based on a 450 nm LD and Yeh et al [11 ] demonstrated 10.6 Gbit/s VLC system based on a 682 nm LD. Moreover, Wei et al [12 ] and Huang et al [13 ] illustrated high‐speed VLC systems based on WDM LDs. However, these systems cannot provide lighting.…”

Section: Introductionmentioning

confidence: 99%

6.915-Gbit/s white-light phosphor laser diode-based DCO-OFDM visible light communication (VLC) system with functional transmission distance

Wei

Liu

Chow

et al. 2020

Electronics Letters

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In this Letter, a recorded single channel of 6.915‐Gbit/s white‐light visible light communication (VLC) system is reported and experimentally demonstrated. By optimising the bit‐loading algorithm onto the direct‐current optical OFDM signal and without using an optical blue filter, the high data rate can be achieved. After a free‐space propagation distance of 1.5 m, the white‐light beam diameter of 14 cm and illuminance of 795 lux are measured. The proposed white‐light VLC system can provide both lighting and communication simultaneously with functional propagation distance.

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Tricolor visible-light laser diodes based visible light communication operated at 40665 Gbit/s and 2 m free-space transmission

Cited by 69 publications

References 12 publications

Compact High‐Power Visible Laser Diode Wavelength Division Multiplexing for White‐Light Communication

Compact High‐Power Visible Laser Diode Wavelength Division Multiplexing for White‐Light Communication

A 448-Gb/s PAM4 FSO Communication With Polarization-Multiplexing Injection-Locked VCSELs Through 600 M Free-Space Link

6.915-Gbit/s white-light phosphor laser diode-based DCO-OFDM visible light communication (VLC) system with functional transmission distance

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