Paul Townsend has more than 30 years’ experience as a scientist and senior leader in optical fibre communications and photonics research, initially in industry (Bellcore, British Telecom and Corning) and now at Tyndall-UCC, where he is Head of Photonics, Director of the IPIC SFI Research Centre in Photonics and Professor of Photonic Systems Research in the School of Physics, UCC. He holds a PhD in Physics from the University of Cambridge and is a Fellow of the Institute of Physics.
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Biography
Prof. Paul Townsend is Head of the Photonics Centre at the Tyndall National Institute and Research Professor in the Department of Physics at University College Cork in Ireland. The Photonics Centre comprises nine internationally-recognised research teams (around 130 staff and PhD students in total) carrying out R&D and commercialisation activities spanning the areas of semiconductor materials and devices, photonic integration and packaging, through to advanced photonic systems for telecommunications and healthcare applications. Since June 2012 he is also Director of the new SFI Irish Photonic Integration Centre (IPIC). IPIC brings together Irish research capabilities in Photonics and Biomedical Science and 18 industrial partners, to develop technological solutions via photonic integration to enable point-of care medical diagnostics, minimally invasive patient monitoring, screening and surgical procedures, and continued growth of communications systems and the internet. IPIC represents a combined SFI and industry investment of some €24M in Irish photonics research over the period 2013-2019.
In terms of his personal research accomplishments, Paul Townsend is widely-recognised as one of the founders of the field of experimental Quantum Key Distribution (QKD), being the first to demonstrate phase-encoded QKD in fibre links, multi-user networks and Wavelength Division Multiplexed (WDM) systems, whilst at BT Laboratories in the UK. The main focus of his current research at Tyndall is next generation fibre to the home networks, and in particular new large scale networks that can significantly reduce the cost and energy consumption of the whole network by eliminating unnecessary electronic switches and routers. His group has developed a number of inventions related to this, and other access or data centre applications, which are under development within his core research programme. His team’s work on long reach access has been highlighted by BT at major conferences such as the Broadband World Forum, ECOC and OFC, and is of interest to standardisation bodies such as the IEEE 802.3 Extended EPON Study Group. He collaborates widely with industry, working with some 15 companies over the last five years, including major ICT multi-nationals such as BT, Intel, Alcatel-Lucent and Nokia Siemens Networks.
Paul Townsend was awarded a PhD in Physics from the University of Cambridge in 1987. He subsequently worked in the international communications industry with Bell Communications Research, BT and Corning, where he held research leadership positions, before moving to Tyndall/UCC in 2003. He has authored more than 170 peer-reviewed publications, including 40 invited papers, and holds granted patents in 16 families to date, with several other applications pending. is also an Honorary Professor in the School of Engineering and Physical Sciences at Heriot-Watt University in Edinburgh and a Fellow of the Institute of Physics.
Research Interests
Research Interests
Photonic communications, specialising in particular on next generation fibre to the home networks.
Quantum communications, specialising in particular on Quantum Key Distribution.
Optical and electronic properties of polymeric semiconductors (no longer active)
Research Grants
| Funder | Start Date | End Date | Title | Role |
|---|---|---|---|---|
| European Union | 01-JAN-06 | 31-DEC-09 | EU “Photonic Integrated Extended Metro and Access Network” | Principal Investigator |
| Enterprise Irl | 15-DEC-08 | 15-DEC-17 | EI – Quantum Cryptography for Passive Optical Networks | Principal Investigator |
| Science Foundation of Ireland | 01-JUN-11 | 31-DEC-17 | Centre for Telcommunications Value-chain Research Second Term Funding. | Principal Investigator |
| European Union | 01-JUN-08 | 31-DEC-17 | EU “Vertically Integrated Systems for Information Transfer” VISIT | Principal Investigator |
| Miscellaneous Non Exchequer | 01-MAY-07 | 31-DEC-24 | Photonics Systems Control Account | Principal Investigator |
| Irish Research Council for Science, Engineering & Technology (IRCSET) | 01-OCT-05 | 31-MAR-09 | IRCSET Scholarship – Iris Choi | Principal Investigator |
| Enterprise Irl | 19-FEB-10 | 19-MAY-10 | EI FP/2010/609 Travel Support | Principal Investigator |
| Science Foundation of Ireland | 01-MAY-07 | 31-DEC-15 | SFI Photonics System Research – General Admin Account | Principal Investigator |
| Science Foundation of Ireland | 01-MAY-07 | 21-SEP-13 | SFI Photonic System Research – David Cotter | Principal Investigator |
| Science Foundation of Ireland | 01-MAY-07 | 21-SEP-13 | SFI Photonic System Research – Paul Townsend | Principal Investigator |
| European Union | 01-JUN-10 | 30-DEC-17 | Colourless and Coolerless components for Power Optical Networks | Principal Investigator |
| Science Foundation of Ireland | 01-JAN-13 | 31-DEC-13 | High Speed Photonic Device & System testbed. | Principal Investigator |
| Science Foundation of Ireland | 01-MAY-13 | 30-APR-19 | Next generation Photonic Access and Data Communication Systems. | Principal Investigator |
| Science Foundation of Ireland | 20-MAY-13 | 03-JUL-19 | I-PIC Irish Photonic Integration Research Centre. | Principal Investigator |
| Science Foundation of Ireland | 20-MAY-13 | 31-JUL-23 | I-PIC Irish Photonic Integration Research Centre. | Principal Investigator |
| Science Foundation of Ireland | 01-MAR-14 | 31-DEC-19 | EU Grant Manager/I-PIC Irish Photonic Integration Research Centre. | Principal Investigator |
| Science Foundation of Ireland | 01-SEP-14 | 31-DEC-19 | Superchannel Transponders for super – Tb/s Elastic Optical Networks. | Principal Investigator |
| Science Foundation of Ireland | 01-MAY-15 | 30-SEP-23 | Transfer print for integrated on-wafer laser. | Principal Investigator |
| Miscellaneous Non Exchequer | 01-JAN-15 | 31-DEC-23 | Photonics Seminar Series 22015-2016 | Principal Investigator |
Research Collaborators
| Company | Country | Name |
|---|---|---|
| Multiple – see publications for details |
Publications
Peer Reviewed Journals
| Year | Journal | Publication |
|---|---|---|
| 2015 | Journal Of Optical Communications And Networking | Demonstration of 10 Gbit/s Burst-Mode Transmission Using a Linear Burst-Mode Receiver and Burst-Mode Electronic Equalization [Invited] Stefano Porto, Cleitus Antony, Anil Jain, Denis Kelly, Daniel Carey, Giuseppe Talli, Peter Ossieur, Paul D Townsend (2015) Demonstration of 10 Gbit/s Burst-Mode Transmission Using a Linear Burst-Mode Receiver and Burst-Mode Electronic Equalization [Invited]. : . |
| 2014 | Journal of Lightwave Technology | Multichannel 25 Gb/s Low-Power Driver and Transimpedance Amplifier Integrated Circuits for 100 Gb/s Optical Links Verbrugghe, J. ; Vaernewyck, R. ; Moeneclaey, B. ; Xin Yin ; Maxwell, G. ; Cronin, R. ; Torfs, G. ; Xing-Zhi Qiu ; Lai, C.P. ; Townsend, P. ; Bauwelinck, J. (2014) Multichannel 25 Gb/s Low-Power Driver and Transimpedance Amplifier Integrated Circuits for 100 Gb/s Optical Links . : . |
| 2014 | Journal of Lightwave Technology | Design Optimization of R-EAM-SOA for Long-Reach Carrier-Distributed Passive Optical Networks A Naughton, G Talli, S Porto, C Antony, P Ossieur, PD Townsend (2014) Design Optimization of R-EAM-SOA for Long-Reach Carrier-Distributed Passive Optical Networks. : . |
| 2013 | IEEE Journal of Lightwave Technology | Advantageous Effects of Gain Saturation in Semiconductor Optical Amplifier-Based Integrated Reflective Modulators Talli, Giuseppe and Naughton, Alan and Porto, Stefano and Antony, Cleitus and Ossieur, Peter and Townsend, Paul D (2013) Advantageous Effects of Gain Saturation in Semiconductor Optical Amplifier-Based Integrated Reflective Modulators. : . |
| 2013 | IEEE Journal of Solid-State Circuits | A 10 Gb/s Linear Burst-Mode Receiver in 0.25 m SiGe: C BiCMOS Ossieur, Peter and Quadir, Nasir A and Porto, Stefano and Antony, Cleitus and Han, Wei and Rensing, Marc and O’Brien, Peter and Townsend, Paul D (2013) A 10 Gb/s Linear Burst-Mode Receiver in 0.25 m SiGe: C BiCMOS. : . |
| 2013 | Optics Express | Demonstration of error-free 25Gb/s duobinary transmission using a colourless reflective integrated modulator Lai, Caroline P and Naughton, Alan and Ossieur, Peter and Antony, Cleitus and Smith, David W and Borghesani, Anna and Moodie, David G and Maxwell, Graeme and Healey, Peter and Poustie, Alistair and others (2013) Demonstration of error-free 25Gb/s duobinary transmission using a colourless reflective integrated modulator. : . |
| 2012 | Optics Express | An upstream reach-extender for 10Gb/s PON applications based on an optimized semiconductor amplifier cascade Porto, Stefano and Antony, Cleitus and Ossieur, Peter and Townsend, Paul D (2012) An upstream reach-extender for 10Gb/s PON applications based on an optimized semiconductor amplifier cascade. : . |
| 2012 | Electronics Letters | 10 Gbit/s transmission over 50 km of SMF using MEMS tunable VCSEL Daly, A,Gierl, C,Grundl, T,Grasse, C,Zogal, K,Carey, D,Townsend, P,Amann, MC,Meissner, P,Corbett, B (2012) 10 Gbit/s transmission over 50 km of SMF using MEMS tunable VCSEL. : . |
| 2011 | Applied Physics Letters | Analysis of detector performance in a gigahertz clock rate quantum key distribution system Clarke, Patrick J and Collins, Robert J and Hiskett, Philip A and Garc’ia-Mart’inez, Mar’ia-Jos’e and Krichel, Nils J and McCarthy, Aongus and Tanner, Michael G and O’Connor, John A and Natarajan, Chandra M and Miki, Shigehito and others (2011) Analysis of detector performance in a gigahertz clock rate quantum key distribution system. : . |
| 2011 | New Journal of Physics | Quantum information to the home Choi, Iris and Young, Robert J and Townsend, Paul D (2011) Quantum information to the home. : . |
| 2011 | IEEE Journal of Lightwave Technology | Demonstration of a 32 512 split, 100 km reach, 2 32 10 Gb/s hybrid DWDM-TDMA PON using tunable external cavity lasers in the ONUs Ossieur, Peter and Antony, Cleitus and Naughton, Alan and Clarke, Aisling M and Krimmel, H-G and Yin, Xin and Qiu, Xing-Zhi and Ford, Colin and Borghesani, Anna and Moodie, David and others (2011) Demonstration of a 32 512 split, 100 km reach, 2 32 10 Gb/s hybrid DWDM-TDMA PON using tunable external cavity lasers in the ONUs. : . |
| 2011 | IEEE Journal of Lightwave Technology | A 135-km 8192-split carrier distributed DWDM-TDMA PON with 2 32 10 Gb/s capacity Ossieur, Peter and Antony, Cleitus and Clarke, Aisling M and Naughton, Alan and Krimmel, H-G and Chang, Y and Ford, Colin and Borghesani, Anna and Moodie, D and Poustie, Alistair and others (2011) A 135-km 8192-split carrier distributed DWDM-TDMA PON with 2 32 10 Gb/s capacity. : . |
| 2011 | Optics Express | Optimisation of SOA-REAMs for Hybrid DWDM-TDMA PON Applications Alan Naughton, Cleitus Antony, Peter Ossieur, Stefano Porto, Giuseppe Talli, and Paul D. Townsend (2011) Optimisation of SOA-REAMs for Hybrid DWDM-TDMA PON Applications. : . |
| 2011 | New Journal of Physics | Robust gigahertz fiber quantum key distribution Clarke, Patrick J and Collins, Robert J and Hiskett, Philip A and Townsend, Paul D and Buller, Gerald S (2011) Robust gigahertz fiber quantum key distribution. : . |
| 2010 | Optics Express | Quantum key distribution on a 10Gb/s WDM-PON Choi, Iris and Young, Robert J and Townsend, Paul D (2010) Quantum key distribution on a 10Gb/s WDM-PON. : . |
| 2008 | IEEE Journal of Lightwave Technology | Modeling of modulation formats for interferometric noise mitigation Talli, Giuseppe and Chow, Chi Wai and Townsend, Paul D (2008) Modeling of modulation formats for interferometric noise mitigation. : . |
| 2008 | Electronics Letters | High extinction switching of SOAs for in-band crosstalk reduction in PON Antony, C and Talli, G and Townsend, PD and Bauwelinck, Johan and Smith, DW and Lealman, I (2008) High extinction switching of SOAs for in-band crosstalk reduction in PON. : . |
| 2008 | Optics Express | Rayleigh noise mitigation in DWDM LR-PONs using carrier suppressed subcarrier-amplitude modulated phase shift keying Chow, CW and Talli, G and Ellis, Andrew D and Townsend, PD (2008) Rayleigh noise mitigation in DWDM LR-PONs using carrier suppressed subcarrier-amplitude modulated phase shift keying. : . |
| 2007 | Journal of Quantum Electronics | Passive optical network approach to gigahertz-clocked multiuser quantum key distribution Fernandez, Veronica and Collins, Robert J and Gordon, Karen J and Townsend, Paul D and Buller, Gerald S (2007) Passive optical network approach to gigahertz-clocked multiuser quantum key distribution. : . |
| 2007 | Journal of Optical Networking | Rayleigh noise mitigation in long-reach hybrid DWDM-TDM PONs Talli, Giuseppe and Chow, Chi Wai and MacHale, Eimear K and Townsend, Paul D (2007) Rayleigh noise mitigation in long-reach hybrid DWDM-TDM PONs. : . |
| 2007 | IEEE Photonics Technology Letters | Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening Chow, CW and Talli, G and Townsend, PD (2007) Rayleigh noise reduction in 10-Gb/s DWDM-PONs by wavelength detuning and phase-modulation-induced spectral broadening. : . |
| 2007 | IEEE Photonics Technology Letters | A multiwavelength low-power wavelength-locked slotted Fabry–Perot laser source for WDM applications Mondal, SK and Roycroft, B and Lambkin, P and Peters, F and Corbett, B and Townsend, P and Ellis, A (2007) A multiwavelength low-power wavelength-locked slotted Fabry–Perot laser source for WDM applications. : . |
| 2006 | Electronics Letters | Reduction of Rayleigh Noise in 10Gb/s DWDM-PONs by Wavelength Detuning and Phase Modulation Induced Spectral Broadening Chow, CW and Talli, G and Townsend, PD (2006) Reduction of Rayleigh Noise in 10Gb/s DWDM-PONs by Wavelength Detuning and Phase Modulation Induced Spectral Broadening. : . |
| 2006 | IEEE Journal of Lightwave Technology | Hybrid DWDM-TDM long-reach PON for next-generation optical access Talli, Giuseppe and Townsend, Paul D (2006) Hybrid DWDM-TDM long-reach PON for next-generation optical access. : . |
| 2006 | Electronics Letters | Rayleigh backscattering impairments in access networks with centralised light source Talli, G and Cotter, D and Townsend, PD (2006) Rayleigh backscattering impairments in access networks with centralised light source. : . |
| 2005 | Optics Express | Quantum key distribution system clocked at 2 GHz Gordon, Karen and Fernandez, Veronica and Buller, Gerald and Rech, Ivan and Cova, Sergio and Townsend, Paul (2005) Quantum key distribution system clocked at 2 GHz. : . |
| 2004 | IEEE Journal of Quantum Electronics | A short wavelength gigahertz clocked fiber-optic quantum key distribution system Gordon, Karen J and Fernandez, Veronica and Townsend, Paul D and Buller, Gerald S (2004) A short wavelength gigahertz clocked fiber-optic quantum key distribution system. : . |
| 2001 | Electronics Letters | Spectral slicing WDM-PON using wavelength-seeded reflective SOAs Healey, P and Townsend, P and Ford, C and Johnston, L and Townley, P and Lealman, I and Rivers, L and Perrin, S and Moore, R (2001) Spectral slicing WDM-PON using wavelength-seeded reflective SOAs. : . |
| 2001 | Journal of Modern Optics | Eighty kilometre transmission experiment using an InGaAs/InP SPAD-based quantum cryptography receiver operating at 1.55 $mu$m Hiskett, Philip A and Bonfrate, Gabriele and Buller, Gerald S and Townsend, Paul D (2001) Eighty kilometre transmission experiment using an InGaAs/InP SPAD-based quantum cryptography receiver operating at 1.55 $mu$m. : . |
| 2001 | Electronics Letters | Low-noise single-photon detection at wavelength 1.55 $mu$m Hiskett, PA and Smith, JM and Buller, GS and Townsend, PD (2001) Low-noise single-photon detection at wavelength 1.55 $mu$m. : . |
| 2001 | Electronics Letters | Asymmetric Mach-Zehnder germano-silicate channel waveguide interferometers for quantum cryptography systems Bonfrate, G and Harlow, M and Ford, C and Maxwell, G and Townsend, PD (2001) Asymmetric Mach-Zehnder germano-silicate channel waveguide interferometers for quantum cryptography systems. : . |
| 2000 | Applied Optics | Performance and design of InGaAs/InP photodiodes for single-photon counting at 1.55 $mu$m Hiskett, Philip A and Buller, Gerald S and Loudon, Alison Y and Smith, Jason M and Gontijo, Ivair and Walker, Andrew C and Townsend, Paul D and Robertson, Michael J (2000) Performance and design of InGaAs/InP photodiodes for single-photon counting at 1.55 $mu$m. : . |
| 1999 | Electronics Letters | Spectral slicing WDM-PON using wavelength-seeded reflective SOAs Healey, P and Townsend, P and Ford, C and Johnston, L and Townley, P and Lealman, I and Rivers, L and Perrin, S and Moore, R (1999) Spectral slicing WDM-PON using wavelength-seeded reflective SOAs. : . |
| 1998 | IEEE Photonics Technology Letters | Experimental investigation of the performance limits for first telecommunications-window quantum cryptography systems Townsend, Paul D (1998) Experimental investigation of the performance limits for first telecommunications-window quantum cryptography systems. : . |
| 1997 | Nature | Quantum cryptography on multiuser optical fibre networks Townsend, Paul D (1997) Quantum cryptography on multiuser optical fibre networks. : . |
| 1997 | Bt Technology Journalbt Technology Journal | Quantum cryptography: Protecting our future networks with quantum mechanics Phoenix, Simon JD and Townsend, Paul D (1997) Quantum cryptography: Protecting our future networks with quantum mechanics. : . |
| 1997 | Electronics Letters | Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing Townsend, Paul D (1997) Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing. : . |
| 1997 | Bt Technology Journalbt Technology Journal | Quantum cryptography: Secure communications using quantum physics Townsend, P and Phoenix, S (1997) Quantum cryptography: Secure communications using quantum physics. : . |
| 1996 | Philosophical Transactions Of The Royal Society A-Mathematical Physical And Engineering Sciencesphilosophical Transactions Of The Royal Society A-Mathematical Physical And Engineering Sciences | Secure optical communications systems using quantum cryptography Townsend, Paul D and Marand, C and Phoenix, SJD and Blow, KJ and Barnett, SM (1996) Secure optical communications systems using quantum cryptography. : . |
| 1996 | Optics Letters | Measurement of the refractive-index modulation generated by electrostriction-induced acoustic waves in optical fibers Townsend, Paul D and Poustie, Alistair J and Hardman, PJ and Blow, KJ (1996) Measurement of the refractive-index modulation generated by electrostriction-induced acoustic waves in optical fibers. : . |
| 1996 | Optics Letters | Experimental investigation of resonant enhancement of the acoustic interaction of optical pulses in an optical fiber Hardman, PJ and Townsend, Paul D and Poustie, Alistair J and Blow, KJ (1996) Experimental investigation of resonant enhancement of the acoustic interaction of optical pulses in an optical fiber. : . |
| 1995 | Contemporary Psychology | Quantum cryptography: how to beat the code breakers using quantum mechanics Phoenix, Simon JD and Townsend, Paul D (1995) Quantum cryptography: how to beat the code breakers using quantum mechanics. : . |
| 1995 | Journal of Modern Optics | Multi-user quantum cryptography on optical networks Phoenix, Simon JD and Barnett, Stephen M and Townsend, Paul D and Blow, KJ (1995) Multi-user quantum cryptography on optical networks. : . |
| 1995 | Optics Letters | Quantum key distribution over distances as long as 30 km Marand, Christophe and Townsend, Paul D (1995) Quantum key distribution over distances as long as 30 km. : . |
| 1995 | Optics Letters | Measured reduction of guided-acoustic-wave Brillouin scattering in a fiber interferometer by time-delayed pulses Townsend, Paul D and Poustie, Alistair J (1995) Measured reduction of guided-acoustic-wave Brillouin scattering in a fiber interferometer by time-delayed pulses. : . |
| 1994 | Journal of Modern Optics | A quantum key distribution channel based on optical fibre Townsend, Paul D and Thompson, I (1994) A quantum key distribution channel based on optical fibre. : . |
| 1994 | Electronics Letters | Secure key distribution system based on quantum cryptography Townsend, Paul D (1994) Secure key distribution system based on quantum cryptography. : . |
| 1994 | Applied Optics | Photon counting with passively quenched germanium avalanche Owens, PCM and Rarity, JG and Tapster, PR and Knight, D and Townsend, PD (1994) Photon counting with passively quenched germanium avalanche. : . |
| 1994 | Electronics Letters | Design of quantum cryptography systems for passive optical networks Townsend, PD and Phoenix, SJD and Blow, KJ and Barnett, SM (1994) Design of quantum cryptography systems for passive optical networks. : . |
| 1993 | Bt Technology Journalbt Technology Journal | Quantum cryptography and secure optical communications: Advances in optical technology Phoenix, SJD and Townsend, PD (1993) Quantum cryptography and secure optical communications: Advances in optical technology. : . |
| 1993 | Electronics Letters | Enhanced single photon fringe visibility in a 10 km-long prototype quantum cryptography channel Townsend, PD and Ougazzaden, A and Tapster, PR (1993) Enhanced single photon fringe visibility in a 10 km-long prototype quantum cryptography channel. : . |
| 1993 | Electronics Letters | Single photon interference in 10 km long optical fibre interferometer Townsend, PD and Rarity, JG and Tapster, PR (1993) Single photon interference in 10 km long optical fibre interferometer. : . |
| 1992 | Physical Review A | Quantum-noise reduction at frequencies up to 0.5 GHz using pulsed parametric amplification Townsend, Paul D and Loudon, Rodney (1992) Quantum-noise reduction at frequencies up to 0.5 GHz using pulsed parametric amplification. : . |
| 1991 | Molecular Crystals And Liquid Crystals | Short-Lived Photoinduced Excitations in Trans-Polyacetylene Rothberg, Lewis and Jedju, Thomas M and Townsend, Paul D and Etemad, Shahab and Baker, Gregory L (1991) Short-Lived Photoinduced Excitations in Trans-Polyacetylene. : . |
| 1991 | Chemical Physics Letters | Non-linear optical spectroscopy of correlated $pi$-electrons in a one-dimensional semiconductor Townsend, Paul D and Fann, W-S and Etemad, S and Baker, Gregory L and Soos, ZG and McWilliams, PCM (1991) Non-linear optical spectroscopy of correlated $pi$-electrons in a one-dimensional semiconductor. : . |
| 1990 | Physical Review Letters | Femtosecond dynamics of photogenerated solitons and polarons in trans-polyacetylene Rothberg, L and Jedju, TM and Townsend, PD and Etemad, S and Baker, GL (1990) Femtosecond dynamics of photogenerated solitons and polarons in trans-polyacetylene. : . |
| 1990 | Applied Physics Letters | Fabrication of channel waveguides in polydiacetylenes: Composite diffused glass/polymer structures Schlotter, NE and Jackel, JL and Townsend, Paul D and Baker, Gregory L (1990) Fabrication of channel waveguides in polydiacetylenes: Composite diffused glass/polymer structures. : . |
| 1989 | Physical Review B | Photoexcitation in Durham-route polyacetylene: Self-localization and charge transport Townsend, Paul D and Friend, Richard H (1989) Photoexcitation in Durham-route polyacetylene: Self-localization and charge transport. : . |
| 1989 | Applied Physics Letters | Observation of nonlinear optical transmission and switching phenomena in polydiacetylene-based directional couplers Townsend, Paul D and Jackel, JL and Baker, Gregory L and Shelburne III, JA and Etemad, S (1989) Observation of nonlinear optical transmission and switching phenomena in polydiacetylene-based directional couplers. : . |
| 1988 | Applied Physics Letters | Waveguiding in spun films of soluble polydiacetylenes Townsend, PD and Baker, GL and Schlotter, NE and Klausner, CF and Etemad, S (1988) Waveguiding in spun films of soluble polydiacetylenes. : . |
| 1987 | Journal Of Physics D-Applied Physics | Photo-excitation in conjugated polymers Friend, RH and Bradley, DDC and Townsend, PD (1987) Photo-excitation in conjugated polymers. : . |
| 1987 | Journal Of Physics-Condensed Matterjournal Of Physics-Condensed Matter | Neutral photo-excitations in oriented polyacetylene Townsend, PD and Friend, RH (1987) Neutral photo-excitations in oriented polyacetylene. : . |
| 1985 | Journal of Physics D: Applied Physics | Increase in chain conjugation length in highly oriented Durham-route polyacetylene Townsend, PD and Pereira, CM and Bradley, DDC and Horton, ME and Friend, RH (1985) Increase in chain conjugation length in highly oriented Durham-route polyacetylene. : . |
| 1985 | Molecular Crystals And Liquid Crystals | Aspects of Stress Induced Crystallinity in Durham Polyacetylene Bott, DC and Walker, NS and White, D and Friend, RH and Townsend, PD (1985) Aspects of Stress Induced Crystallinity in Durham Polyacetylene. : . |
Conference Publications
| Year | Publication |
|---|---|
| 2014 | Optical Fiber Communication Conference (OFC 2014) Peter Ossieur, Stefano Porto, Cleitus Antony, Anil Jain, Denis Kelly, Nasir Quadir, Giuseppe Talli, Paul Townsend (2014) Optical Fiber Communication Conference (OFC 2014). : . |
| 2014 | 2014 European Conference on Optical Communication (ECOC) Cleitus Antony, Giuseppe Talli, Marco Dalla Santa, Brian Murray, Stephen Hegarty, Efstratios Kehayas, Igor Krestnikov, Paul D Townsend (2014) 2014 European Conference on Optical Communication (ECOC). : . |
| 2014 | Optical Fiber Communication Conference (OFC 2014) Stefano Porto, Cleitus Antony, Giuseppe Talli, Daniel Carey, Peter Ossieur, Paul Townsend (2014) Optical Fiber Communication Conference (OFC 2014). : . |
| 2014 | Circuits and Systems (ISCAS), 2014 IEEE International Symposium on Quadir, Nasir Abdul and Townsend, Paul D and Ossieur, Peter (2014) Circuits and Systems (ISCAS), 2014 IEEE International Symposium on. : . |
| 2014 | European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014-40th Krishna, Manthena Vamshi and Jain, Anil and Quadir, Nasir Abdul and Townsend, Paul D and Ossieur, Peter (2014) European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014-40th. : . |
| 2013 | European Conference on Optical Communications (ECOC 2013) Lai, C.P. ; Vaernewyck, R. ; Naughton, A. ; Bauwelinck, J. ; yin, x. ; Qiu, X.Z. ; Maxwell, G. ; Smith, D.W. ; Borghesani, A. ; Cronin, R. ; Grobe, K. ; Parsons, N. ; Kehayas, E. ; Townsend, P.D. (2013) European Conference on Optical Communications (ECOC 2013). : . |
| 2013 | European Conference on Optical Communications (ECOC 2013) Bauwelinck, J. ; Vaernewyck, R. ; Verbrugghe, J. ; Soenen, W. ; Moeneclaey, B. ; Van Praet, C. ; Vyncke, A. ; Torfs, G. ; yin, x. ; Qiu, X.Z. ; Vandewege, J. ; Sotiropoulos, N. ; de Waardt, H. ; Cronin, R. ; Maxwell, G. ; Tekin, T. ; Bakopoulos, P. ; Lai, C.P. ; Townsend, P.D. (2013) European Conference on Optical Communications (ECOC 2013). : . |
| 2013 | Optical Fiber Communication Conference (OFC 2013) Stefano Porto, Cleitus Antony, Giuseppe Talli, Peter Ossieur, Paul Townsend (2013) Optical Fiber Communication Conference (OFC 2013). : . |
| 2012 | Optical Fiber Communication Conference (OFC 2012) Alan Naughton, Peter Ossieur, Cleitus Antony, David W Smith, Anna Borghesani, David G Moodie, Graeme Maxwell, Peter Healey, Paul D Townsend (2012) Optical Fiber Communication Conference (OFC 2012). : . |
| 2012 | European Conference on Optical Communications (ECOC 2012) Lai, C.P., Naughton, A., Ossieur, P., Antony, C., Smith, D.W., Borghesani, A., Moodie, D.G., Maxwell, G. ,Healey, P. , Poustie, A., Townsend, P.D. (2012) European Conference on Optical Communications (ECOC 2012). : . |
| 2012 | Signals and Systems Conference (ISSC 2012), IET Irish Quadir, N and Ossieur, P and Townsend, PD (2012) Signals and Systems Conference (ISSC 2012), IET Irish. : . |
| 2012 | Transparent Optical Networks (ICTON), 2012 14th International Conference on Lai, Caroline P and Naughton, Alan and Ossieur, Peter and Smith, David W and Borghesani, Anna and Moodie, David G and Maxwell, Graeme and Healey, Peter and Parsons, Nick and Jensen, Rich and others (2012) Transparent Optical Networks (ICTON), 2012 14th International Conference on. : . |
| 2012 | Signals and Systems Conference (ISSC 2012), IET Irish Jain, A and Ossieur, P and Townsend, PD (2012) Signals and Systems Conference (ISSC 2012), IET Irish. : . |
| 2012 | Transparent Optical Networks (ICTON), 2012 14th International Conference on Cano, I and Porto, S and Naughton, A and Ossieur, P and Townsend, PD and Lazaro, JA and Prat, J (2012) Transparent Optical Networks (ICTON), 2012 14th International Conference on. : . |
| 2012 | International Conference on Photonics in Switching (2012) Lai, C.P. ; Naughton, A. ; Ossieur, P. ; Townsend, P.D. ; Smith, D.W. ; Borghesani, A. ; Moodie, D.G. ; Maxwell, G. ; Bauwelinck, J. ; Vaernewyck, R. ; Verbrugghe, J. ; yin, x. ; Qiu, X.Z. ; Eiselt, M. ; Grobe, K. ; Parsons, N. ; Jensen, R. ; Kehayas, E. (2012) International Conference on Photonics in Switching (2012). : . |
| 2012 | Optical Fiber Communication Conference (OFC 2012) Peter Ossieur, Cleitus Antony, Alan Naughton, Stefano Porto, Nasir A Quadir, Aisling Clarke, Paul D Townsend (2012) Optical Fiber Communication Conference (OFC 2012). : . |
| 2012 | Optical Society of America Conference on Optical Instrumentation for Energy and Environmental Applications Cleitus Antony, John Hayes, Paul Townsend (2012) Optical Society of America Conference on Optical Instrumentation for Energy and Environmental Applications. : . |
| 2011 | Optical Fiber Communication Conference Clarke, Aisling M and Borghesani, Anna and Smith, David W and Ossieur, Peter and Townsend, Paul and Jensen, Rich and Parsons, Nick (2011) Optical Fiber Communication Conference. : . |
| 2011 | CLEO: Science and Innovations Clarke, Patrick J and Collins, Robert J and McCarthy, Aongus and Krichel, Nils J and Garc’ia-Mart’inez, Mar’ia-Jos’e and Tanner, Michael G and O’Connor, John A and Natarajan, Chandra M and Miki, Shigehito and Sasaki, Masahide and others (2011) CLEO: Science and Innovations. : . |
| 2011 | Optical Transmission Systems, Switching, and Subsystems VIII, Shanghai, China, 8-12 December Buller, GS, Collins, RJ, Clarke, PJ & Townsend (2011) Optical Transmission Systems, Switching, and Subsystems VIII, Shanghai, China, 8-12 December. : . |
| 2011 | European Conference on Optical Communications (ECOC 2011) Paul D Townsend, A Clarke, Peter Ossieur, D Smith, Anna Borghesani, D Moodie, I Lealman, Xing-Zhi Qiu, Johan Bauwelinck, Xin Yin, Klaus Grobe, Brian T Teipen, Rich Jensen, Nick Parsons, E Kehayas (2011) European Conference on Optical Communications (ECOC 2011). : . |
| 2011 | Transparent Optical Networks (ICTON), 2011 13th International Conference on Kehayas, E and Clarke, AM and Borghesani, A and Vyrsokinos, K and Smith, DW and Ossieur, P and Moodie, DG and Jensen, R and Parsons, N and Townsend, PD (2011) Transparent Optical Networks (ICTON), 2011 13th International Conference on. : . |
| 2010 | Access Networks and In-house Communications Townsend, Paul and Ossieur, Peter and Antony, C and Naughton, A and Clarke, AM and Davey, RP and Krimmel, HG and De Ridder, Tine and Qiu, Xing-Zhi and Melange, C and others (2010) Access Networks and In-house Communications. : . |
| 2010 | Optical Fiber Communications Conference (OFC 2010) I. P. Choi and P. D. Townsend (2010) Optical Fiber Communications Conference (OFC 2010). : . |
| 2010 | Optical Fiber Communications Conference (OFC 2010) Antony, Cleitus and Ossieur, Peter and Clarke, Aisling M and Naughton, Alan and Krimmel, Heinz-Georg and Chang, Y Frank and Borghesani, Anna and Moodie, David and Poustie, Alistair and Wyatt, Richard and others (2010) Optical Fiber Communications Conference (OFC 2010). : . |
| 2010 | Access Networks and In-house Communications Bauwelinck, Johan and Antony, Cleitus and Bonada, Francesc and Caballero, Antonio and Chatzi, Sotiria and Clarke, Aisling M and Costa, Liliana Nicolau and Forzati, Marco and Lazaro, Jose A and Maziotis, Alexandros and others (2010) Access Networks and In-house Communications. : . |
| 2010 | Optical Fiber Communications Conference (OFC 2010) Ossieur, Peter and Antony, Cleitus and Naughton, Alan and Clarke, Aisling and Townsend, Paul D and Krimmel, Heinz-Georg and De Ridder, Tine and Qiu, Xing-Zhi and Melange, Cedric and Borghesani, Anna and others (2010) Optical Fiber Communications Conference (OFC 2010). : . |
| 2009 | Photonics Ireland H. N. J. Fernando, J. H. Song, A. Biavati, P. D. Townsend, P. O¿Brien and F. H. Peters; (2009) Photonics Ireland. : . |
| 2009 | Optical Fiber Communication Conference Ossieur, Peter and De Ridder, Tine and Bauwelinck, Johan and M’elange, Cedric and Baekelandt, Bart and Qiu, Xing-Zhi and Vandewege, Jan and Talli, Giuseppe and Antony, Cleitus and Townsend, Paul and others (2009) Optical Fiber Communication Conference. : . |
| 2009 | Optical Fiber Communication Conference MacHale, Eimear K and Talli, Giuseppe and Townsend, Paul D and Borghesani, Anna and Lealman, Ian and Moodie, David G and Smith, David W (2009) Optical Fiber Communication Conference. : . |
| 2009 | International Conference on Photonics in Switching Smolorz, S and Rohde, H and Ossieur, Peter and Antony, Cleitus and Townsend, Paul D and De Ridder, Tine and Baekelandt, Bart and Qiu, Xing-Zhi and Appathurai, S and Krimmel, HG and others (2009) International Conference on Photonics in Switching. : . |
| 2009 | ECOC 2009 Antony, C and Ossieur, P and Talli, G and Townsend, PD and Krimmel, HG and Poustie, A and Wyatt, R and Harmon, B and Lealman, I and Maxwell, G and others (2009) ECOC 2009. : . |
| 2009 | Optical Fiber Communication Conference Antony, Cleitus and Talli, Giuseppe and Townsend, Paul D (2009) Optical Fiber Communication Conference. : . |
| 2009 | Photonics Ireland 2009 Conference 2009 Ossieur, Peter and De Ridder, Tine and Antony, Cleitus and M’elange, Cedric and Baekelandt, Bart and Qiu, Xing-Zhi and Ford, Colin and Townsend, Paul D (2009) Photonics Ireland 2009 Conference 2009. : . |
| 2009 | Conference on Lasers and Electro-Optics/Pacific Rim Buller, GS and Collins, RJ and Clarke, PJ and Fernandez, V and Gordon, KJ and Hiskett, PA and Townsend, PD (2009) Conference on Lasers and Electro-Optics/Pacific Rim. : . |
| 2008 | Optical Communication, 2008. ECOC 2008. 34th European Conference on MacHale, EK and Talli, G and Townsend, PD and Borghesani, A and Lealman, I and Moodie, DG and Smith, DW (2008) Optical Communication, 2008. ECOC 2008. 34th European Conference on. : . |
| 2008 | Optical Internet, 2008. COIN 2008. 7th International Conference on Townsend, PD and Talli, G and MacHale, EK and Antony, C (2008) Optical Internet, 2008. COIN 2008. 7th International Conference on. : . |
| 2007 | ECOC 2007 MacHale, EK and Talli, G and Chow, CW and Townsend, PD (2007) ECOC 2007. : . |
| 2007 | Optics East 2007, Proceedings of SPIE, the International Society for Optical Engineering Fernandez, V and Collins, RJ and Gordon, KJ and Townsend, PD and Buller, GS (2007) Optics East 2007, Proceedings of SPIE, the International Society for Optical Engineering . : . |
| 2007 | Conference on Lasers and Electro-Optics Chow, CW and Talli, G and Ellis, AD and Townsend, PD (2007) Conference on Lasers and Electro-Optics. : . |
| 2007 | Optics East 2007 Fernandez, Veronica and Collins, Robert J and Gordon, Karen J and Townsend, Paul D and Buller, Gerald S (2007) Optics East 2007. : . |
| 2007 | Optical Fiber Communication Conference Talli, G and Chow, CW and Townsend, PD (2007) Optical Fiber Communication Conference. : . |
| 2007 | IEEE LEOS Anual Meeting TOWNSEND, P and Talli, G and CHOW, C and MACHALE, E and Anthony, C and Davey, R and De Ridder, Tine and Qiu, Xing-Zhi and Ossieur, Peter and KRIMMEL, H and others (2007) IEEE LEOS Anual Meeting. : . |
| 2007 | European Conference on Optical Communications (ECOC 2007) Talli, Giuseppe and Chow, C and Townsend, Paul and Davey, Russell and De Ridder, Tine and Qiu, Xing-Zhi and Ossieur, Peter and Krimmel, H and Smith, David and LEALMAN, D and others (2007) European Conference on Optical Communications (ECOC 2007). : . |
| 2006 | European Conference on Optical Communication, Cannes, France Talli, G and Chow, CW and MacHale, EK and Townsend, PD (2006) European Conference on Optical Communication, Cannes, France. : . |
| 2006 | Optical Fiber Communication Conference MacHale, Eimear K and Talli, Giuseppe and Townsend, Paul D (2006) Optical Fiber Communication Conference. : . |
| 2006 | Proceedings of BroadBand Europe Conference Davey, Russell and De Ridder, Tine and Qiu, Xing-Zhi and Ossieur, Peter and Krimmel, H and Smith, David and Lealman, L and Poustie, Alistair and Talli, Giuseppe and Chow, C and others (2006) Proceedings of BroadBand Europe Conference. : . |
| 2006 | Optics East 2006 Choi, Iris PS and Fernando, Harendra NJ and Townsend, Paul D and Wahl, Michael (2006) Optics East 2006. : . |
| 2006 | 11th European Conference on Networks & Optical Communications (NOC), Invited Paper, Berlin, Germany Townsend, PD and Talli, Giuseppe and Chow, Chi Wai and MacHale, Eimear (2006) 11th European Conference on Networks & Optical Communications (NOC), Invited Paper, Berlin, Germany. : . |
| 2005 | Optical Fiber Communication Conference Talli, Giuseppe and Townsend, Paul D (2005) Optical Fiber Communication Conference. : . |
| 2005 | CLEO Pacific Rim Gordon, KJ and Fernandez, V and Collins, RJ and Buller, GS and Rech, I and Cova, SD and Townsend, PD (2005) CLEO Pacific Rim. : . |
| 2005 | European Conference on Optical Communications (ECOC 2005) Buller, GS and Gordon, KJ and Fernandez, V and Collins, RJ and Pellegrini, S and Cova, SD and Townsend, PD (2005) European Conference on Optical Communications (ECOC 2005). : . |
| 2005 | OPTO-Ireland Talli, Giuseppe and Townsend, Paul D (2005) OPTO-Ireland. : . |
| 2005 | Microtechnologies for the New Millennium 2005 Fernandez, Veronica and Gordon, Karen J and Collins, Robert J and Townsend, Paul D and Cova, Sergio D and Rech, Ivan and Buller, Gerald S (2005) Microtechnologies for the New Millennium 2005. : . |
| 2004 | International Quantum Electronics Conference Gordon, Karen J and Fernandez, Veronica and Buller, Gerald S and Townsend, Paul D and Cova, Sergio D and Tisa, Simone (2004) International Quantum Electronics Conference. : . |
| 2002 | Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002 Healey, P and Townsend, P and Ford, C and Johnston, L and Townley, P and Lealman, I and Rivers, L and Perrin, S and Moore, R (2002) Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002. : . |
| 1999 | Lasers and Electro-Optics, 1999. CLEO/Pacific Rim’99. The Pacific Rim Conference on Maxwell, Graeme D and Townsend, P and Lear, K and Harlow, M and Cecil, R (1999) Lasers and Electro-Optics, 1999. CLEO/Pacific Rim’99. The Pacific Rim Conference on. : . |
| 1998 | Aerospace/Defense Sensing and Controls Townsend, Paul D (1998) Aerospace/Defense Sensing and Controls. : . |
| 1994 | International Quantum Electronics Conference Townsend, Paul D (1994) International Quantum Electronics Conference. : . |
| 1990 | 33rd Annual Techincal Symposium Townsend, Paul D and Baker, Gregory L and Jackel, Janet L and Shelburne III, JA and Etemad, Shahab (1990) 33rd Annual Techincal Symposium. : . |
| 1989 | Nonlinear optical properties of organic materials II Townsend, PD and Baker, GL and Jackel, JL and Shelburne, JA and Etemad, S (1989) Nonlinear optical properties of organic materials II. : . |
| 1988 | 32nd Annual Technical Symposium Jackel, JL and Schlotter, NE and Townsend, PD and Baker, GL and Etemad, S (1988) 32nd Annual Technical Symposium. : . |
Book Chapters
| Year | Publication |
|---|---|
| 1995 | Quantum cryptography: protecting our future networks with quantum mechanics Phoenix, Simon JD and Townsend, Paul D (1995) Quantum cryptography: protecting our future networks with quantum mechanics. : Springer. |
| 1985 | Electronic properties of polyacetylene prepared by the Durham route Townsend, PD and Bradley, DDC and Horton, ME and Pereira, CM and Friend, RH and Billingham, NC and Calvert, PD and Foot, PJS and Bott, DC and Chai, CK and others (1985) Electronic properties of polyacetylene prepared by the Durham route. : Springer. |
Other Journals
| Year | Journal | Publication |
|---|---|---|
| 1987 | Synthetic Metals | Structural studies of oriented precursor route conjugated polymers Bradley, DDC and Friend, RH and Hartmann, T and Marseglia, EA and Sokolowski, MM and Townsend, PD (1987) Structural studies of oriented precursor route conjugated polymers. : . |
| 1987 | Synthetic Metals | Photoexcitation in oriented polyacetylene Townsend, PD and Friend, RH (1987) Photoexcitation in oriented polyacetylene. : . |
| 1987 | Synthetic Metals | Conformational defects in Durham polyacetylene Friend, RH and Bradley, DDC and Townsend, PD and Bott, DC (1987) Conformational defects in Durham polyacetylene. : . |
| 1986 | Synthetic metals | Conformational defects in Durham-route polyacetylene Friend, RH and Bradley, DDC and Pereira, CM and Townsend, PD and Bott, DC and Williams, KPJ (1986) Conformational defects in Durham-route polyacetylene. : . |
Professional Activities
Professional Associations
- [1997] Fellow
- [2003] Member
- [1997] Professional Physicist
Honours and Awards
- [1997] – Elected Institute of Physics Fellow
- [1986] – College Fellow, St John’s College, University of Cambridge UK
- [1983] – Highest Marks in Finals Prize
- [2012] – Research Professorship, UCC
- [1999] – Honorary Professorship, Heriot-Watt University, Edinburgh
Committees
- [2010] Centre for Advanced Photonics & Process Analysis (CAPPA) Industry Advisory Committee, Strategic guidance and oversight
- [2014] Energy-Efficient Optical Fibre Communications Programme (Chalmers University, Sweden), Advisory Board , Strategic advice and oversight
- [2008] Tyndall Executive Management Team, Institute Management
- [2012] IPIC Executive Management Committee, Research Centre Management
- [1999] Industrial Advisory Board, School of Engineering and Physics, Heriot-Watt University, Edinburgh, Industry oversight of doctoral training programmes
- [2009] Tyndall Graduate Studies Committee, Graduate teaching and supervision strategy and oversight
Employment
- St John’s College, University of Cambridge, UK – College Research Fellow (1986-1989)
- Bell Communications Research (Bellcore) – Postdoctoral Member of Research Staff (1987-1990)
- British Telecom (BT) – Senior Research Scientist (1990-1998)
- British Telecom (BT) – Professional Member of Technical Staff (1998-2000)
- Corning Research Centre, UK – Research Associate and Group Leader (2000-2002)
- Corning Research Centre, UK – Access Product Manager (Strategic Growth Group), Research Associate and Group Leader (2002-2003)
- University College Cork – SFI Principal Investigator and Senior Research Fellow (Depatment of Physics) (2003-2005)
- University College Cork /Tyndall – Head of Group (Tyndall), Senior Research Fellow (Department of Physics) (2005-2008)
- University College Cork and Tyndall National Institute – Head of Group (Tyndall) and Senior Research Fellow (Department of Physics) (2005-2008)
- University College Cork and Tyndall – Head of Photonics Centre, Tyndall (2008-current)
Patents
- [2013] 123 – I hold patents in 18 separate families with several more pending. Details can be found in ‘More Publications’ section
Education
- [1983] University of East Anglia, UK – BSC
- [1986] University of Cambridge, UK – PHD
Teaching Activities
Teaching Interests
I currently focus exclusively on postgraduate supervision and mentoring.
Recent Postgraduates
| Student | Degree | Graduation Year | Institution | Thesis |
|---|---|---|---|---|
| Iris Choi | BSC | 2010 | UCC | Quantum Key Distribution on Multi-User Optical Networks |
| Cleitus Antony | BSC | 2011 | UCC | 10Gb/s Burst Mode Transmission in Long Reach Passive Optical Networks |
| Nasir Abdul Quadir | BSC | 2013 | UCC | Research and Design of High-Speed Advanced Analogue Front-Ends for Fibre-Optic Transmission Systems |
| Stefano Porto | BSC | 2014 | UCC | Burst Mode Electronic Dispersion Compensation in Long Reach PONs |
| Alan Naughton | BSC | 2014 | UCC | Analysis and Optimisation of Semiconductor Reflective Modulators for Optical Networks |