60 Mb/s, 2 meters visible light communications in 1 klx ambient using an unlensed CMOS SPAD receiver

Kosman, John; Almer, Oscar; Jalajakumari, Aravind V. N.; Videv, Stefan; Haas, Harald; Henderson, Robert K.

doi:10.1109/phosst.2016.7548773

Cited by 20 publications

(2 citation statements)

References 4 publications

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“…However, SPADs are still a relatively immature technology whose sensitivity is reduced by relatively low photon detection efficiencies and the unavoidable dead-time after a photon is detected. Results with small arrays of SPADs show that the negative impact of dead-time can be mitigated by using arrays of SPADs whose dead-time is shorter than the time between photons crossing the active area of each SPAD [4,5,6,7]. However, these results were obtained using prototype SPAD arrays that are not widely available.…”

Section: Introductionmentioning

confidence: 99%

A comparison between the sensitivities of VLC receivers containing an off-the-shelf SPAD array and an APD

Zhang

Chun

Faulkner

et al. 2017

2017 IEEE Photonics Conference (IPC)

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Section: Introductionmentioning

confidence: 99%

A comparison between the sensitivities of VLC receivers containing an off-the-shelf SPAD array and an APD

Zhang

Chun

Faulkner

et al. 2017

2017 IEEE Photonics Conference (IPC)

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“…An alternative method of increasing the signal to noise ratio of a receiver is to operate an APD above its breakdown voltage and place it in series with a quenching device, such as a resistor, to create a single photon avalanche diode (SPAD) [4,5]. Results obtained using optical receivers that incorporate arrays of SPADs (now known as silicon photomultipliers (SiPMs)) have been previously reported [6][7][8][9][10]. More recently, it has been suggested that receivers containing SiPMs will be more sensitive than receivers containing APDs if the photon detection efficiency (PDE) of the SiPM is higher than 14% [11].…”

Section: Introductionmentioning

confidence: 99%

The Future Prospects for SiPM-Based Receivers for Visible Light Communications

Zhang

Chun

Ahmed

et al. 2019

J. Lightwave Technol.

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A silicon photomultiplier (SiPM) could be used to create visible light communications receivers whose sensitivity is determined by shot-noise. However, its finite output pulse width will limit its bandwidth and its recovery time and dark count rate could limit its sensitivity. In this paper, a method of accurately determining the signal levels needed to transmit data in a shot-noise limited system using PAM is described. In addition, a method of estimating the additional power needed to use equalisation to overcome inter-symbol interference caused by the finite output pulse width of SiPMs is described. The best way to achieve more than 1 Gbps with this type of receiver and how to select the best available SiPM as a receiver are then discussed.

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Tricolor R/G/B Laser Diode Based Eye-Safe White Lighting Communication Beyond 8 Gbit/s

Chi

Wang

et al. 2017

Sci Rep

222

106

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White light generation by mixing red, green, and blue laser diodes (RGB LDs) was demonstrated with Commission International de l'Eclairage coordinates of (0.2928, 0.2981), a correlated color temperature of 8382 K, and a color rendering index of 54.4 to provide a maximal illuminance of 7540 lux. All the white lights generated using RGB LDs were set within the risk group-1 criterion to avoid the blue-light hazard to human eyes. In addition, the RGB-LD mixed white light was diffused using a frosted glass to avoid optical aberration and to improve the performance of the lighting source. In addition, visible light communication (VLC) by using RGB-LD mixed white-light carriers and a point-to-point scheme over 1 m was performed in the directly modulated 16-QAM OFDM data format. In back-to-back transmission, the maximal allowable data rate at 10.8, 10.4, and 8 Gbps was determined for R, G, and B LDs, respectively. Moreover, the RGB-LD mixed white light-based indoor wavelength-division multiplexing (WDM)-VLC system yielded a total allowable transmission data rate of 8.8 Gbps over 0.5 m in free space. Such a high-speed RGB-LD mixed WDM-VLC system without any channel interference can be used to simultaneously provide data transmission and white lighting in an indoor environment.The coverage of indoor lighting and visible light communication (VLC) systems is one of the promising approaches for developing smart homes because it can simultaneously provide compact lighting fidelity and convenient data transmission functionality [1][2][3][4][5][6] . Compared with phosphor-coated blue LEDs, the use of red, green, and blue (RGB) light-emitting diodes (LEDs) to generate a white-light source is an attractive lighting system with a high color rendering index (CRI) [7][8][9] . Such a high-directional white-light source generated using RGB LEDs can be used as desk lamps or daylight lamps.

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60 Mb/s, 2 meters visible light communications in 1 klx ambient using an unlensed CMOS SPAD receiver

Cited by 20 publications

References 4 publications

A comparison between the sensitivities of VLC receivers containing an off-the-shelf SPAD array and an APD

A comparison between the sensitivities of VLC receivers containing an off-the-shelf SPAD array and an APD

The Future Prospects for SiPM-Based Receivers for Visible Light Communications

Tricolor R/G/B Laser Diode Based Eye-Safe White Lighting Communication Beyond 8 Gbit/s

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