Institute of Communications and Connected Systems


Online Seminar | Recent Advancements in Optical Wireless Communications

03 June 2020, 11:30 am–12:30 pm

Business person holding lightbulb with wifi symbol radiating from it

In this seminar Professor Harald Haas one of the key figures in Optical Wireless Communications, often referred to as LiFi, will present recent advancements in the field

This event is free.

Event Information

Open to

All | UCL staff | UCL students






Robert Thompson – Institute of Communications and Connected Systems

Recent Advancements in Optical Wireless Communications

In this talk, we will discuss key advancements in optical wireless communications showing a pathway to terabit optical wireless connectivity. We will review white light sources based on blue lasers and show their potential for long-range (hundreds of meters) and high speed (tens of gigabit) wireless connectivity.

A critical element in optical wireless communications is the receiver. To this end, we show results obtained from digital single-photon avalanche diodes (SPAD) arrays in CMOS, and highlight sensitivity gains in the region of 10 dB. Lastly, we present experimental results of optical wireless systems which use solar cells as data detectors and demonstrate their capability to receive data at speeds greater than 1 Gbps.

ICCS Chair

This session will be chaired by: Professor Izzat Darwazeh, ICCS Director

Attending the seminar 

The Seminar will be held on the Zoom platform. Details of how to access Zoom can be found on their website.

Attending the Seminar

The Seminar will be held on the Zoom platform. Details of how to access Zoom can be found on their website.

Join the seminar by clicking on this link.
The meeting ID is: 
916 1006 7102
Meeting Password: will be distributed to members of ICCS or can be requested by email.

About the ICCS online seminar series

The ICCS seminar series is designed to bring together members of our community who are currently away from our home in Bloomsbury and distributed across the world. The Seminars are being curated to provide academic exploration and inspiration, offering insights into a range of topics surrounding communications and connected systems. Topics will either explore subjects close to the work of our academics or introduce wider concepts from experts in the global academic and industrial community.

If you wish to suggest a future topic or speaker please use the link below, speakers could be from academia, industry, within ICCS/UCL or from further a field.


The seminar will begin with a presentation aimed at a technical audience, but at a level that will be accessible to those from a range of engineering disciplines. Speakers have been asked to end their presentations with a technical challenge or delving deeper into the content to engage those more invested in the topic. 

The seminar series is designed to offer a compact exploration of ranging topics and is therefore short in format. The presentation will run for 15 - 30 minutes, followed by 15 minutes of questions.
 Suggest a topic or speaker

About the Speaker

Prof Harald Haas

Professor of Mobile Communications at The University of Edinburgh

Harald Haas FREng FRSE FIEEE FIET received the Ph.D. degree from The University of Edinburgh in 2001. He currently is the Professor of Mobile Communications at The University of Edinburgh and the Director of the LiFi Research and Development Centre. Haas is the Initiator, co-founder and Chief Scientific Officer of pureLiFi Ltd..

He has co-authored more than 500 conference and journal papers, including papers in Science and Nature Communications. Haas’ main research interests are in optical wireless communications, hybrid optical wireless and RF communications, spatial modulation, and interference coordination in wireless networks. His team invented spatial modulation.

He introduced LiFi to the public at an invited TED Global talk in 2011. LiFi was listed among the 50 best inventions in TIME Magazine in 2011. He gave a second TED Global lecture in 2015 on the use of solar cells as LiFi data detectors and energy harvesters. In 2016, he received the Outstanding Achievement Award from the International Solid State Lighting Alliance.

In 2019 he was recipient of IEEE Vehicular Society James Evans Avant Garde Award. In 2017 he received a Royal Society Wolfson Research Merit Award.

More about Prof Harald Haas