High-Speed Optical Wireless Demonstrators: Conclusions and Future Directions

O’Brien, Dominic; Turnbull, R.; Minh, Hoa Le; Faulkner, Grahame; Bouchet, Olivier; Porcon, Pascal; Tabach, Mamdouh El; Gueutier, Eric; Wolf, Mike; Grobe, Liane; Li, Jianhui

doi:10.1109/jlt.2012.2193874

Cited by 87 publications

(49 citation statements)

References 14 publications

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“…For both PAM and OFDM, the modulated signal was generated offline in MATLAB ® environment and loaded to an Agilent 81150A arbitrary waveform generator (AWG) while the detection was carried out by a 1.95mm diameter avalanche photodiode (APD) connected to an Agilent MSO71043 oscilloscope [15]. The post processing of the optical signal was done offline using a MATLAB script.…”

Section: Experimental Methodsmentioning

confidence: 99%

Visible light communication using InGaN optical sources with AlInGaP nanomembrane down-converters

Santos¹,

Rajbhandari²,

Tsonev³

et al. 2016

Opt. Express

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Abstract:We report free space visible light communication using InGaN sources, namely micro-LEDs and a laser diode, down-converted by a redemitting AlInGaP multi-quantum-well nanomembrane. In the case of micro-LEDs, the AlInGaP nanomembrane is capillary-bonded between the sapphire window of a micro-LED array and a hemispherical sapphire lens to provide an integrated optical source. The sapphire lens improves the extraction efficiency of the color-converted light. For the case of the downconverted laser diode, one side of the nanomembrane is bonded to a sapphire lens and the other side optionally onto a dielectric mirror; this nanomembrane-lens structure is remotely excited by the laser diode. Data transmission up to 870 Mb/s using pulse amplitude modulation (PAM) with fractionally spaced decision feedback equalizer is demonstrated for the micro-LED-integrated nanomembrane. A data rate of 1.2 Gb/s is achieved using orthogonal frequency division multiplexing (ODFM) with the laser diode pumped sample.

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Section: Experimental Methodsmentioning

confidence: 99%

Visible light communication using InGaN optical sources with AlInGaP nanomembrane down-converters

Santos¹,

Rajbhandari²,

Tsonev³

et al. 2016

Opt. Express

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“…The more times of reflections occur, the lower received power we get. Proportion of response for each reflection compared to the total response is described in [3]. The first reflection response is given as follows [3] …”

Section: Channel Modelmentioning

confidence: 99%

“…In addition to the function of illumination, the white LEDs can also be used for communication [1]. The main challenge of LEDs communications is the limited modulation bandwidth of sources, just several MHZ [2,3]. Many solutions are proposed in the past several years such as high efficient modulation schemes, RGB multi chip LED modules and so on.…”

Section: Introductionmentioning

confidence: 99%

Channel Simulation of Non-imaging Optical MIMO Communication

Jiao¹,

Ding²,

Wang³

2013

OPJ

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This paper reports a channel simulation of an indoor optical wireless multiple-input-multiple-output (MIMO) system with non-imaging receivers. The system consists of a 2×2 array of white light-emitting diodes (LEDs) and 2×2 array of PDs. An overview of the model specifications, channel impulse response and channel capacity are demonstrated in this paper. The distribution of the first reflection is analyzed. The effect of SNR and the location of receivers on non-imaging optical MIMO communications are investigated. In addition, by moving the receivers, the optimal location of the communication is found.

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“…As shown in [4], a 7-channel diversity receiver equipped with a hexagonal metal-semiconductormetal (MSM) InGaAs photodetector array achieves a data rate of 5 Gb/s using multiple-input and multiple-output (MIMO) techniques. Alternatively, an angle diversity transceiver may be deployed, where the sources emit at different angles and the receiver has multiple detectors looking into these different angles [5]. To allow the independent optimization of electrical and optical features of the optical receiver, we proposed a cascaded acceptance optical receiver (CAO-Rx) in [6].…”

Section: Introductionmentioning

confidence: 99%