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

Journal article

We report free space visible light communication using InGaN sources, namely micro-LEDs and a laser diode, down-converted by a red-emitting 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 down-converted 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.

Authors: Santos, J; Rajbhandari, S; Tsonev, D; Chun, H; Guilhabert, B

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Optical Society of America
• Journal: Optics express
• Volume: 24
• Issue: 9
• Pages: 10020-10029
• Publication date: 2016-05-01
• Acceptance date: 2016-04-23
• DOI: 10.1364/OE.24.010020
• EISSN: 1094-4087
• Language: English