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Flexible photoluminescent waveguide amplifiers to improve visible light communication platforms

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Bastos, ARN 
McKenna, B 
Silvério, T 
Carlos, LD 
André, PS 


Commercial light-emitting diodes are a low-cost and energy-efficient solution for the implementation of optical wireless communication, known as visible light communication (VLC). This technology has a huge growing interest, being recently a research spotlight in the scientific community, especially due to the increasing popularity and rapid development of self-sustainable smart houses and the Internet of Things. As the VLC link is free space, big challenges arise in its implementation. To improve the VLC performance, this work proposes an enhanced system solution integrating an optical amplifier. In this context, organic-inorganic hybrids incorporating a blue-emitting conjugated polymer with high quantum yield (>50%) were synthesised and processed as planar waveguides. The waveguides were tested in a testbed scenario, showing a signal amplitude improvement of 2.5 dB, establishing the proposed approach as a promising cost-effective solution for optical amplification in VLCs.



organic-inorganic hybrid materials, photoluminescence, optical communication, light emitting diodes, optical wireless communication, huge growing interest, research spotlight, scientific community, self-sustainable smart houses, Internet of Things, VLC link, free space, VLC performance, enhanced system solution, optical amplifier, organic-inorganic hybrids, blue-emitting conjugated polymer, high quantum yield, planar waveguides, signal amplitude improvement, promising cost-effective solution, optical amplification, flexible photoluminescent waveguide amplifiers, visible light communication platforms, commercial light-emitting diodes, energy-efficient solution, noise figure 2, 5 dB

Journal Title

IET Optoelectronics

Conference Name

2019 International Microwave and Optoelectronics Conference

Journal ISSN


Volume Title



Institution of Engineering and Technology (IET)


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