Deputy Head of School Research
Professor (Optical Communications)
- Professor Petropoulos is responsible for the Telecommunications Systems Laboratory of the Optoelectronics Research Centre (ORC).
- He is member of the research groups Optical Fibre Communications and Advanced Fibre Technologies & Applications
Current research projects include:
- Airguide Photonics
- Photonic Phase Conjugation Systems (PHOS)
- Silicon-rich silicon nitride Nonlinear Integrated Photonic ciRcuits & Systems (juNIPeRS)
- Converged Optical and Wireless Access Networks (COALESCE)
The Telecommunications Systems Lab is part of the UK's National Dark Fibre Facility.
Periklis has supervised 17 PhD students to completion to date. His most recent PhD student won the School's 'Team 96' Award for the best finalist student.
A brief description of her thesis is shown below:
ADVANCED O-BAND COMMUNICATIONS ENABLED BY A NOVEL BISMUTH-DOPED FIBRE AMPLIFIER
PhD Thesis by Natsupa Taengnoi
Current optical transmission systems, based on erbium-doped fibre amplifier (EDFA) equipped wavelength division multiplexing (WDM) transmission in the C-band, are gradually being driven towards their capacity limits due to the rapid growth of data traffic. Several routes for increasing transmission capacity have been heavily investigated in recent years and it is unclear as of yet which solutions will be adopted. One solution is to increase the bandwidth utilisation of standard single-mode fibre (SMF) by pursuing transmission in regions beyond the C-band and doing so requires the availability of high-gain, low-noise amplifiers in the region of interest.
The objective of this thesis is to demonstrate the enablement of WDM transmission in the O-band by a newly developed bismuth-doped fibre amplifier (BDFA), offering high gain between 1320nm and 1370nm. This BDFA delivers effective, low-noise amplification and may finally provide an amplification solution for the O-band that is analogous to the ubiquitous C-band EDFA. If the BDFA is to be extensively used in the future, it will be necessary to undertake its characterisation by similar means to that performed on the EDFA in the early days of its development. This thesis reports the first parameterisation of the O-band BDFA in terms of its gain parameters and frequency-resolved noise figure to provide confidence in its performance and advise in its future development. To prove its practicality, the BDFA is successfully deployed in an amplified WDM O-band transmission testbed. The work further investigates the nonlinear performance of the BDFA as well as its transient characteristics. Finally, this thesis proposes an application of alternate-mark inversion to mitigate the nonlinearity in O-band transmission by applying it to on-off-keying and 4-level pulse amplitude modulation formats, the latter being the first time such a format has been demonstrated. Altogether, the results of this thesis suggest that the BDFA is a promising solution for O-band WDM systems.
Current PhD Students
Professor Petropoulos is the Module Leader of OPTO6010: Advanced Fibre Telecommunication Technologies
External roles and responsibilities
Professor Periklis Petropoulos is a Professor of Optical Communications and the Deputy Head of School (Research) at the Optoelectronics Research Centre (ORC). He graduated from the Department of Electrical Engineering and Information Technology, University of Patras, Greece in 1995. He received the MSc degree in Communications Engineering from the University of Manchester Institute of Science and Technology, UK and the PhD degree in Optical Telecommunications from the Optoelectronics Research Centre, University of Southampton, UK. He is affiliated with the ORC ever since. His research interests lie in the fields of optical communications, all-optical signal processing and novel fibre and waveguide technologies. He has participated in several European Union and national research projects in the field of optical communications. His research has produced more than 550 papers in technical journals and conference proceedings, including several invited and post-deadline papers in major international conferences, and holds 6 patents.
Prof Petropoulos has served as member of the Technical Programme Committees for several international conferences, including the European Conference on Optical Communication (ECOC; 2009-15), the Optical Fiber Communication (OFC; 2012-15) conference, and has repeatedly served as a Sub-committee Chair for these conferences. He is a founding member of the Management Board of the UK’s National Dark Fibre Facility (NDFF), an installed fibre network dedicated to research purposes.
He is the Editor-in-Chief of IET Optoelectronics.
Professor Petropoulos is a Fellow of Optica (formerly the Optical Society of America).