Andrew Ellis
Professor of Optical Communications/Deputy Director of the Aston Institute of Photonics Technology (AIPT) Aston University
- Birmingham
Professor Ellis researches optical superchannels and advanced passive optical networks for the delivery of Tbit/s class broadband.
Media
Social
Biography
He is currently 50th anniversary professor of optical communications at Aston University where he is also the Deputy Director of the Institute of Photonics Technologies, and he holds adjunct professorships from University College Cork (Physics) and Dublin City University. He has published more than 200 journal papers and more than 30 patents in the field of photonics, primarily targeted at increasing capacity, reach and functionality in the optical layer. He currently manages projects investigating; optical superchannels for mutli-terabit/s optical transponders, advanced passive optical networks for the delivery of Tbit/s class broadband, and the compoensation of nonlinear effects for the extension of transmission reach.
He is a Life Fellow of the Optical Society of America, and served for 6 years as an Associate Editor of the Journal Optics Express. He was a Member of the Technical Program Committee of ECOC form 2004 to 2018, chairing sub-committee 3 at ECOC devoted to digital and optical signal processing in 2014, and served two three year terms on the TPC of OFC. He has also been TPC member for Photonics Ireland, CLEO Europe, and OECC. He recently participated in the organization of ECOC 2019 as co-chair of the Technical Programme Committee.
Areas of Expertise
Education
University of Sussex
BSc
Physics
1987
Minor in Mathematics
Aston University
PhD
Electronic and Electrical Engineering
1997
Affiliations
- Optical Society of America : Life Fellow
- Institute of Physics : Member
Links
Media Appearances
Internet use could be rationed to prioritise health services and online lessons
The Telegraph online
2020-03-20
Andrew Ellis, a professor of optical communications at Aston University, called for rationing and restrictions on the UK's internet usage in 2015.
Autumn Statement: Industry reacts to Housing Infrastructure Fund
The Planner online
2016-11-23
Aston University’s chair of optical communications Professor Andrew Ellis welcomed the chancellor's announcement that the government will invest £400m in fibre to the premises. This, he said, would go "a long way to tackling the digital divide" in the UK. “Technologies such as G.Fast, recently developed by major industry players, will serve cities and other densely populated sufficiently where distances to the nearest cabinets are relatively small, so government needs to focus its investment in areas less likely to be served by these initiatives. If targeted at traditionally harder-to-reach areas such as rural districts and market towns, this investment fund could give the economy a major boost.
Government to invest a billion to boost fibre broadband
Networking+ online
2016-11-25
Professor Andrew Ellis, Aston University’s chair of optical communications, said the Digital Infrastructure Investment Fund was good news but sounded a cautionary noted.
Is the internet almost full? Experts warn web may collapse when it reaches 'capacity in 8 years
Daily Mirror online
2015-05-03
Professor Andrew Ellis, who has co-organised a meeting at London's Royal Society later this month to try to avert the crisis, told the Daily Mail that it would lead to a dramatic increase in costs - and higher bills.
Patents
System and Method for the Transmission of Optical Signals
GB201605120, WO2017162853, JP2019511876, CN109417426, WO2017162853, EP3433951, US20190028200
2017-09-28
A system for transmission of an optical signal, the system including an optical coupler for splitting said signal into a first copy and a second copy. The optical coupler has an input for receiving the optical signal, a first output for the first copy and a second output for the second copy. The system also includes a first optical guide connected to the first output, a second optical guide connected to the second output and a superposition module for coherently superimposing the first copy and the second copy of the signal.
Method of non-linearity compensation in optical fibre communications
WO2015155520, US20170041078, EP3130089, GB201406271, CN106464375, JP2017517925
2015-10-15
A nonlinearity compensation technique for a CO-OFDM transmission system in which a proportion (e.g. up to 50%) of OFDM subcarriers is transmitted along with a phase-conjugate copy (PCP) on another subcarrier (replacing a data carrying subcarrier) to enable nonlinear distortion compensation. Nonlinear distortion experienced by closely spaced subcarriers in an OFDM system is highly correlated.
Method and system for reducing the modal delay in a multimode transmission system
WO2013003863, EP2541809, US20140126915, JP2014526815
2013-01-02
With the continuing growth of demand for bandwidth, fiber optic transmission systems will inherently run into a capacity crunch on single mode fiber. The spectral efficiency of networks to date is practically limited to about 2b/s/Hz. I
Communication systems – Coherent WDM
WO2007043032, EP1943756, US2009074416, JP200951231
2007-04-19
A transmitter transmits signals on multiple channels, and they are wavelength multiplexed according to Coherent WDM. Quality of the received signals is very much enhanced by the transmitter tuning the relative phases of neighbouring channels according to delay characteristics of the optical path. In one example, the transmitter adds a relative delay of ¼ bit period between each data signal and the beat frequency signal for the odd and even channel groups, to counter the receiver side delays introduced by the AMZI.
Dispersion compensation
WO2006131904, US2009208216, EP1889382
2005-06-08
A dispersion compensation system comprises a detector for receiving an optical input signal and a compensator for processing the detector outputs and re-constituting the original signal. The detector generates at least two signals which depend on the instantaneous amplitude and frequency of the distorted signal in different ways, and the compensator electrically processes the detector outputs.
