Curriculum Vitae

Anthony E. Kelly, BSc (Hons), MSc, PhD

Name Anthony Edward Kelly Address Heldig

1 Chapelton Lane West Kilbride Ayrshire Scotland KA23 9LP Tel:+44 (0)1294 823001 Mob:+44 (0)7713562493

Date of Birth 25th February 1971 Age: 40 Marital Status Married (3 children) Nationality British

Qualifications 1994-1999 PhD, Thesis title “Optimisation of Semiconductor Optical Amplifiers for

Optical Networks” University of Strathclyde Glasgow 1992-1993 MSc Optical Electronics, University of Strathclyde, Glasgow 1988-1992 BSc(Hons.) Laser Physics and Optoelectronics, University of

Strathclyde, Glasgow

Academic Employment August 2003 - Senior Lecturer, School of Engineering, University of Glasgow present

Appointed in September 2004 and joined the Optoelectronics Research Group to enhance their research activities in advanced optical components and optical communications.

Industrial Employment

Jan 2005 – Founder and CTO, Amphotonix Limited. Present Founded Amphotonix Limited and raised finance to acquire and use

the IP and know how of Kamelian Limited which went into receivership in July 2004. Performed this role whilst seconded 50% from the University of Glasgow until September 2010.

June 2000 - Co-Founder and Principle Design Engineer, Kamelian Ltd. August 2003

I was one of the co-founding team of Kamelian Ltd, a start-up company specialising in the design and manufacture of advanced devices for the telecommunications sector. Subsequent to contributing to the business plan and raising finance, I was responsible for device design, test and the running of a systems test-bed and design of the manufacturing back end processes whilst running the Glasgow office.

Feb. 2000 - Senior Scientist, Corning Research Centre. (formerly Photonics July 2000 Technology Research Centre of BT Laboratories)

The short period spent under new management focussed on bringing new components to the market place (in tandem with other company units across the world). I acquired an appreciation of commercial considerations as opposed to the largely academic environment which prevailed at BT.

Oct.1997 - Senior Management and Professional Grade, BT Laboratories. Jan. 2000

Promoted to Senior Management and Professional Grade, and continued to develop high speed transmission and optical switching concepts. Managed several European projects culminated in a successful 40Gbit/s field trial of transmission between Ipswich and Norwich.

Apr.1996 - Management and Professional Grade, BT Laboratories. Sept. 1997

Appointed on the completion of my PhD and contributed to two of the main thrusts for BT corporate project work at this time; devices for fibre access networks and ultrahigh speed transmission and optical switching.

Research Activities The themes of my research activities to date are expanded in the following sections this includes work performed both at BT Laboratories and the University of Glasgow Optical Switching

The first project conducted at BT Laboratories was concerned with the design, fabrication and characterisation of optoelectronic switch matrices. Progress was made on the reduction of the insertion loss of these components by improving the dry etching of the mirrors in the structure. Since Semiconductor Optical Amplifiers (SOAs) were central to the operation of these switches and the next design iteration was focussed on changing and improving this component. I subsequently became manager of the SOA development effort at BT Labs. Experimental demonstration supported by theory showed for the first time that travelling wave effects in the SOA allowed operation of this device when used as a nonlinear optical switch at speeds in excess of the effective carrier lifetime. Access Network Devices For the access network devices, cost reduction was the main aim and therefore devices suitable for low cost packaging were of great importance. This was achieved by integrating mode expander regions with SOA devices. This resulted in work describing the first travelling wave SOA without antireflection coatings and the lowest noise figure SOA. High Speed Transmission Managed the SOA effort on the ACTS-HIGHWAY project, an EU funded high speed transmission activity looking at ways of using existing standard, dispersive fibre. The work centred on using the nonlinear properties of SOAs to create a phase conjugate signal by four wave mixing which could then be used for dispersion compensation via mid-span spectral inversion. Record transmission distances and wavelength translations were achieved at 40Gbit/s demonstrating the efficacy of the optimisation. This project culminated in a successful 40Gbit/s field trial of transmission between Ipswich and Norwich in the UK. Optical Logic Research also focussed on replicating electronic functionality in the optical domain, and progress was published on optical subsystems carrying out routine electronic functions such as binary counters, PRBS generators, parity checkers and regenerative memories. This all optical logic work was justified by the fact that the building blocks of these subsystems were suitable for operation at speeds above those possible in electronics. It was therefore extremely important to demonstrate extremely high (80-100Gbit/s) operation of these all optical regenerative gates and this formed the core of my work for most of this period. Record demonstrations of 100Gbit/s wavelength conversion by cross gain modulation and four wave mixing were stepping stones to the demonstration of the worlds fastest regenerative logic gate at 80Gbit/s, the output eye diagram of which appeared on the front cover of Science in November 1999. Ultra-fast Phenomena in Semiconductors

Ultra-fast time domain measurements using a commercial Optical Parametric Amplifier system giving 150fs tuneable pulses form 0.4um to 2.3um. I upgraded an existing test capability to perform time domain measurements on a variety of devices such as all optical wavelength converters, photonic band-gap devices, vertical cavity dilute nitride lasers and AlInGaAs saturable absorbers for passive mode locking applications. GaN microLEDs and Visible Light Communications GaN is an extremely important material system which is driving the move to solid state lighting. The material properties of GaN are not well understood and this work has been looking at the bias dependencies of the carrier lifetime and trying to relate this back to the device physics. This has been done by studying microLED devices (radius<100um) and their modulation bandwidth. This work has produced the worlds highest bandwidth GaN LED and demonstrated prototype visible light communication systems including integrated CMOS drivers. Low Cost Lasers for PONs The price point for PON lasers is extremely challenging. This project is concerned with the design for manufacturing of F-P and DFB lasers for the PON markets given this price point in collaboration with a local SME in this market segment.

Commercial Activities This section provides more detail on Kamelian Ltd and Amphotonix Ltd with regard to the roles and responsibilities performed.

Responsible for device design. This was a full design from the ground up including epitaxial layer structure, waveguide and optical interface designs. Devices were made which had world leading PDG and noise figure performance with the necessary yields for manufacturing.

Internal delivery of mode expanded devices for hybrid integration. Active devices suitable for hybrid integration are very challenging to make since the required modes are very large. This leads to compromises in the electrical and optical performance. High performance devices were successfully delivered with the necessary alignment features,layer thicknesses and tolerances.

Equipment development and procurement. The Kamelian production line required automated bar, CoC and packaged device testers. After the development of a suitable test algorithm and strategy, my role here was to manage a team who successfully defined, procured and commissioned these automated test stations

Qualification strategy and implementation. This was the development of the back end chip burn-in and qualification process. This had not been done before for SOA based devices so the approach was based

on the modification of Telcordia 468. The work included the definition of EOL criteria, the measurement and verification of the relationship between ASE output and other parameters such as gain and saturated output power, the procurement of elevated temperature testing equipment and writing of customer facing qualification reports.

Research to support customer interaction and product definition. Systems research to define the required device specification for a given application as required by the customer using a 10Gbit/s systems testbed.

Publications-Journal [1] “Integrated 2x2 Optical Switch with Gain”, G.Sherlock, J.D. Burton, P.J. Fiddyment, P.C. Sully, A.E.Kelly and M.J. Robertson, Electron. Letts., 1994, 30, (2), pp137-138 [2] "Data driven operation of semiconductor amplifier loop mirror at 40 Gbit/s" A. D. Ellis, D. A. O. Davies, A. Kelly and W. A. Pender, Electron. Lett. Vol. 31, No. 15, pp. 1245-1247 (1995). [3] “Bandwidth enhancement of wavelength conversion by semiconductor optical amplifier cascade” , D.D. Marcenac, A.E.Kelly, D.Nesset and D.A.O. Davies, Electron. Letts., 1995, 31, (17), pp1442-1443 [4] "Demonstration of a Programmable Optical Pulse Pattern Generator for 100Gbit/s Networks", D. C. Rogers, J. V. Collins, C. W. Ford, P. J. Fiddyment, J. Lucek, M. Shabeer, G. Sherlock, D. Cotter, K. Smith, J. D. Burton, C. M. Peed, A. E. Kelly and P. McKee, Electron. Lett., 31, Nov. '95, pp. 2001-2002 [5] “New Unipolar Codes Allowing Electro-Optical Correlation Utilizing a Semiconductor Laser Amplifier.”C.G.Wallace, A.E.Kelly, I. Andonovic, D.Uttamchandani, Photonics Tech. Letts., Vol.7, No 12, pp1456-1458, Dec 1995 [6] “Polarisation insensitive, 25dB gain semiconductor laser amplifier without antireflection coatings” , A E Kelly, I F Lealman, L J Rivers, S D Perrin and Mark Silver, , Electronics Letters, Vol. 32, No 19, September 1996, pp1835-1836 [7] “10GHz 3ps Actively mode-locked ring laser incorporating a semiconductor laser amplifier and a electro-absorption modulator” , M.J Guy, J.R. Taylor, D.G. Moodie and A.E. Kelly, , Electronics Letters, Vol. 32, No 24, November 1996, pp2240-2241. [8] “Nonlinear Optical Amplifiers for Ultra-High Speed All-Optical Wavelength Conversion and Switching.” D.D.Marcenac, A.E.Kelly, D.Nesset, Trends in Optics and Photonics Vol V, Optical Society of America, 1996 pp 230-236

[9] “Improved system performance of wavelength conversion via four wave mixing in a tandem semiconductor amplifier configuration”, D. Nesset, D.D. Marcenac and A.E. Kelly , Electronics Letters, Vol. 33, No 2, January 1997, pp148-149 [10] “Low noise figure(7.2dB) and high gain(29dB) semiconductor optical amplifier with a single layer AR coating” , A E Kelly, I F Lealman, L J Rivers, S D Perrin and Mark Silver, Electronics Letters, Vol. 33, No 6, March 1997, pp536-538 [11] “40Gb/s Transmission over 406km of NDSF using mid-span spectral inversion in a 2mm long semiconductor optical amplifier” , DD Marcenac, D Nesset, AE Kelly, M Brierly, AD Ellis, DG Moodie, and CW Ford, Electronics Letters, Vol. 33, No 10, May 1997, pp879-881 [12] “40 Gbit/s wavelength conversion over 24.6 nm using FWM in a semiconductor optical amplifier with an optimised MQW active region” A. E. Kelly, D. D. Marcenac, D. Nesset Electronics Letters Vol 33, No 25, Dec 1997, pp2123-2124. [13] “Simultaneous Wavelength Conversion of Two 40 Gbit/s Channels using four-wave mixing in a semiconductor optical amplifier” , D. Nesset, D.D. Marcenac, P.L. Mason, A.E. Kelly, S. Bouchoule and E. Lach, Electronics Letters Vol 34, No 1, Jan 1998, pp107-108 [14] 40Gbit/s transmission over 103km of NDSF using polarisation independent Mid-Span Spectral Inversion by four-wave mixing in a semiconductor optical amplifier” D. D. Marcenac, D. Nesset, A. E. Kelly, D. Gavrilovic, Electronics Letters Vol 34, No 1, Jan 1998, pp100-101. [15] “Passive Alignment of Second Generation Optoelectronic Devices” J.V.Collins, I.F. Lealman, A.E.Kelly, and C.W.Ford, IEEE JSTQE, Vol.3, No.6, Dec 1997, pp1441-1445 [16] "Wavelength dependence of switching contrast ratio of a semiconductor optical amplifier based nonlinear loop mirror" R. J. Manning, A. E. Kelly, A.J. Poustie, and K.J. Blow, Electron. Lett., 34, 916 (1998). [17] "All-Optical Clock Division at 10 GHz and 20 GHz in a Semiconductor Optical Amplifier Based Nonlinear Loop Mirror", A. E. Kelly, R. J. Manning, A. J. Poustie and K. J. Blow,. Electron. Lett., Vol. 34, no 13 pp1337-1339 1998 [18] "Semiconductor optical amplifier based nonlinear optical loop mirror with feedback: Two modes of operation at high switching rates", R. J. Manning, A. E. Kelly, K. J. Blow, A. J. Poustie and D. Nesset Opt. Commun.,, Vol 157, pp45-51, 1998 [19] "All-optical regenerative memory with full write/read capability" A. J. Poustie, A. E. Kelly, R. J. Manning and K. J. Blow, Opt. Commun., 154, 277 (1998). [20] "All-optical binary half adder" A. J. Poustie, K. J. Blow, A. E. Kelly and R.J.Manning, Opt. Commun., 156, 22, 1998

[21] “High Bitrate Operation of a Novel Optical Phase Conjugator using Inline Fibre DFB Lasers, “S Y Set, Y Yamashita, M Ibsen, R I Laming, D Nesset, A E Kelly and C Gilbertas, Electronics Letters, vol. 34, no. 17, 20th August, 1998, p. 1681-1683 [22] “100 Gbit/s wavelength conversion using FWM in an MQW semiconductor optical amplifier” A.E. Kelly, A.D. Ellis, D. Nesset, R. Kashyap and D.G. Moodie , Electronics Letters vol34 no20 pp1955-1956 (1998) [23] ‘Error free 100 Gbit/s wavelength conversion using grating assisted cross-gain modulation in 2 mm long semiconductor amplifier , A.D. Ellis, A.E. Kelly, D. Nesset, D. Pitcher, D.G. Moodie and R. Kashyap, Electronics Letters vol34 no20 pp. 1958-1959 (1998). [24] “Improved gain block for long wavelength (1.55µm) hybrid integrated devices”, I.F. Lealman, A.E. Kelly, L.J. Rivers ,S.D. Perrin, R. Moore, Electronics Letters, vol. 34, no. 23, 12th November, 1998, p. 2247-2249 [25] ‘All optical wavelength conversion using SOA non-linearities’ Derek Nesset, Tony Kelly and Dominique Marcenac, IEEE Communications Magazine Vol. 36 No.12 Dec 1998 [26] ‘40 Gbit/s all optical regeneration and demultiplexing using a semiconductor non-linear interferometer’, I. D. Phillips, A. D. Ellis, H. J. Thiele, R. J. Manning, and A. E. Kelly, Electronics Letters vol34 no24 pp2340-2342 (1998) [27] “10 Gbit/s all-optical regenerative memory using a single SOA based logic gate”, R. J. Manning, I. D. Phillips, A. D. Ellis, A. E. Kelly, A. J. Poustie and K. J. Blow, Electronics Letters, 35, 158 (1999). [28] “All-optical parity checker with bit-differential delay”, A. J. Poustie, K. J. Blow, A. E. Kelly and R. J. Manning, Optics Communications, 162, 37 (1999). [29] “All-optical pseudorandom number generator”, A. J. Poustie, K. J. Blow, R. J. Manning and A. E. Kelly, Optics Communications, 159, 208 (1999). [30] “Temporal evolution of amplitude restoration and thresholding in an all-optical regenerative memory”, A. J. Poustie, K. J. Blow, A. E. Kelly and R. J. Manning, Journal of Modern Optics , 46, No.8, pp1251-1254, (1999) [31] “All-optical clock division at 40 GHz using a semiconductor optical amplifier based nonlinear interferometer”, R. J. Manning, I. D. Phillips, A. D. Ellis, A. E. Kelly, A. J. Poustie and K. J. Blow, Electronics Letters, vol. 35, no. 10, 13th May, 1999, p. 827-829. [32] "10Gbit/s Asychronous Digital Optical Regenerator", I.D. Phillips, P.Gunning, A.D.Ellis, J.K.Lucek, D.G.Moodie, A.E.Kelly and D Cotter, IEEE Photon. Tech. Lett., Vol.11, No.7, pp 892-895 (1999)

[33] “All-optical full adder with bit-differential delay”, A. J. Poustie, K. J. Blow, A. E. Kelly and R. J. Manning, Optics Communications, 168, pp89-93 (1999) [34] "80Gbit/s all optical regenerative wavelength conversion using a semiconductor optical amplifier based interferometer", A. E. Kelly, I. D. Phillips, R. J. Manning, A. D. Ellis, D. Nesset, D.G. Moodie and R. Kashyap, Electronics Letters, vol. 35, no. 17, p. 1477-1478 (1999) [35] "Improved fibre grating lasers using large spot, curved waveguide semiconductor reflective amplifiers", M.C. Brierley, R. Wyatt, R. Kashyap, A.E. Kelly, I.F. Lealman, K. Young-Smith, I. Reid, L.J. Rivers, S.D. Perrin, R. Moore, Electronics Letters, vol. 35, no. 19, p. 1644-1646, (1999) [36] "Photonic Technologies for Ultra-High-Speed Information Highways:I. 40 Gbit/s TDM Components and Subsystems", S. Bouchoule, R. Lefevre, E. Legros, F. DevauxH. Melchior, M. Duelk, and R. Hess, E. Lach, H. Bulow, G. Veith, J. R. Burie, J. F. Cadiou, F. Brillouet, J. Hourany, D. Hoffman, B. Sartorius, K. S. Jepsen, A. T. Clausen, A. Buxens, H. N. Poulsen, K. E. Stubkjaer, H. Burkhard, H.-J. Scholl, D. Nesset, A. E. Kelly, D. Marcenac, R. V. Penty and I. H. White, Optical Fiber Technology 5, pp275-300 (1999) [37] "Wavelength conversion at 40 Gbit/s via cross-gain modulation in distributed feedback laser integrated with semiconductor optical amplifier ", M.F.C. Stephens, D. Nesset, K.A. Williams, A.E. Kelly, R.V. Penty, I.H. White and M.J. Fice, Electronics Letters, vol. 35, no. 20, 30th September, p. 1762-1764,(1999) [38] "Non-linear Optics for High-Speed Digital Information Processing", D. Cotter, R. J. Manning, K. J. Blow, A. D. Ellis, A. E. Kelly, D. Nesset, I. D. Phillips, A. J. Poustie and D. C. Rogers:, Science, Vol.286, No. 5444, 19 November, 1999, pp.1523-1528. [39] “100Gbit/s optical clock recovery using electrical phaselocked loop consisting of commercially available components” I.D. Phillips, A.D. Ellis, T. Widdowson, D. Nesset, A.E.Kelly and D. Trommer, Electronics Letters Vol. 36, No. 7, 2000 pp650-652 [40] P. Borri , F. Romstad, W. Langbein, A. E Kelly, J. Mørk, and J. M. Hvam, “Separation of coherent and incoherent nonlinearities in a heterodyne pump-probe experiment“ Optics Express 7, 107 (2000) [41] “Experimental measurement of non-linear polarisation rotation in semiconductor optical amplifiers”, R.J. Manning, A. Antonopoulos, R. Le Roux and A.E.Kelly, Electronics Letters, Vol 37, No. 4, pp229-231, 2001 [42] “Mode beating in spot-size converter lasers” Frank H.G.M. Wijnands, Charles G. Crookes, Paul M. Charles, Richard M. Ash, Ian F. Lealman, Michael J. Robertson, Anthony E. Kelly, Kevin A. Williams, Aeneas B. Massara, Richard V. Penty and Ian H. White, Optical and Quantum Electronics, Volume 34, Number 10 / October, 2002

[43] “Semiconductor optical amplifiers ; Performance and applications in optical packet switching”, Armstrong, I., Andonovic, I., and Kelly, A. E., Journal of Optical Networking, Vol. 3, 12, 2004, 1536-5379 [44] “Hybridisation Platform Assembly and Demonstrartion of All-Optical Wavelength Conversion at 10Gbit/s”, Amrmstrong, I.,Andonovic, I, Kelly,A.E., Bonthron,S.,Bebbington,B., Michie,C., Tombling,C., Fasham,S., and Johnstone,W., J. Lightwave Tech, Vol23, No.5, pp1852-1860, 2005 [45] “Index and gain dynamics of optically pumped GaInNAs vertical-cavity semiconductor optical amplifiers” Laurand, N., Calvez, S., Dawson, M.D., and Kelly, A.E, Appl. Phys. Lett. 87, 231115 (2005) [46] Passive modelocking of InGaAsP/InP laser diode over wide operating temperature range Tan, W.K.; Wong, H.Y.; Kelly, A.E.; Sorel, M.; Marsh, J.H.; Bryce, A.C., Electron Letts, Vol 41, No 25, pp1380- 1381 2005 [47] “Index and gain dynamics of optically pumped GaInNAs vertical-cavity semiconductor optical amplifiers” Nicolas Laurand, Stephane Calvez, Martin D. Dawson, and Anthony E. Kelly, Virtual Journal of Ultrafast Science -- January 2006 [48] “Slow-light in a vertical-cavity semiconductor optical amplifier” Nicolas Laurand, Stephane Calvez, Martin D. Dawson, and Anthony E. Kelly Optics Express, Vol. 14, Issue 15, pp. 6858-6863 [49] “Polarization Insensitive SOAs Using Strained Bulk Active Regions” Michie, C.; Kelly, A. E.; McGeough, J.; Armstrong, I.; Andonovic, I.; Tombling, C. J. Lightwave Tech, Vol.24 No.11, pp3920-3927, 2006 [50] “High Performance Semiconductor Optical Amplifier Modules at 1300nm”A.E.Kelly, C.Michie, I.Armstrong, I.Andonovic, C. Tombling, J.McGeough and B.C.Thomsen, Photon.Tech.Lett, Vol.18, No.24, pp 2674-2676, 2006 [51] An Adjustable Gain Clamped Semiconductor Optical Amplifier” Michie, C., Kelly, A. E., Armstrong, I., Andonovic, I., Tombling, C., IEEE J. Lightwave Tech, Vol.25 No.6, June 2007 [52] Michie, WC, Conner, S, Kelly, AE and Andonovic, I (2007) Automatic power control with electronic amplified spontaneous emission compensation. Optical Engineering, 46 . [53] Tan, WK, Wong, HY, Kelly, AE, Sorel, M, Marsh, JH and Bryce, AC (2007) Temperature behaviour of pulse repetition frequency in passively mode-locked InGaAsP/InP laser diode - Experimental results and simple model. IEEE Journal Of Selected Topics In Quantum Electronics, 13 . pp. 1209-1214. [54] Russell P. Davey, Daniel B. Grossman, Michael Rasztovits-Wiech, David B. Payne, Derek Nesset, A. E. Kelly, Albert Rafel, Shamil Appathurai, and Sheng-Hui Yang

“Long-Reach Passive Optical Networks” Journal of Lightwave Technology, Vol. 27, Issue 3, pp. 273-291 February 2009 (invited tutorial paper) [55] C. Michie, A. E. Kelly, J McGeough, S Karagianopoulos and I. Andonovic ’Optically Amplified Passive Optical Networks - a Power Budget Analysis’ Journal of Optical Networking, Vol. 8, Issue 4, pp. 370-382, March 2009 [56] Cao, T., Ho, Y.L.D., Heard, P.J., Barry, L.P., Kelly, A.E. and Cryan, M.J. (2009) Fabrication and measurement of a photonic crystal waveguide integrated with a semiconductor optical amplifier. Journal of the Optical Society of America B: Optical Physics, 26 (4). pp. 768-777. [57] B. Romeira, J. M. L. Figueiredo, T. J. Slight, L. Wang, E. Wasige, C. N. Ironside, A. E. Kelly, R. Green, "Nonlinear Dynamics of Resonant Tunneling Optoelectronic Circuits for Wireless/Optical Interfaces", IEEE Journal of Quantum Electronics, vol. 45, no. 11, pp. 1436-1445, Nov 2009. [58] A E Kelly, C Michie, Wende Zhong, S Karagianopoulos, W I Madden, C Tombling, I Andonovic, ‘High Performance Polarisation Independent Reflective Semiconductor Optical Amplifiers in the S, C and L bands’, IEEE Journal on Selected Areas in Communications, vol. 28, no. 6, August 2010 [59] Jonathan McKendry, Richard P. Green, A. E. Kelly, Zheng Gong, Benoit Guilhabert, David Massoubre, Erdan Gu and Martin D. Dawson “High Speed Visible Light Communications Using Individual Pixels in a Micro Light-Emitting Diode Array” Photon. Tech. Lett., Vol 22, No.18, pp 1346-1348, Sept 2010. [60] Ivan Glesk, Marc Sorel, Anthony E. Kelly and Paul R. Prucnal “Enhancing Performance of Optical Communication Systems with Advanced Optical Signal Processing” Journal of Networking, Nov 2010 [61] B. Romeira, J. M. L. Figueiredo, C. N. Ironside, A. E. Kelly, T. J. Slight, "Optical Control of a Resonant Tunneling Diode Microwave-Photonic Oscillator", IEEE Photonics Technology Letters, Nov 2010. [62] Green, R.P., Haji, M., Hou, L., Mezosi, G., Dylewicz, R. and Kelly, A.E. (2011) Fast saturable absorption and 10 GHz wavelength conversion in Al-quaternary multiple quantum wells. Optics Express, 19 (10). pp. 9737-9743. ISSN 1094-4087 [63] B. Romeira, K. Seunarine, C. N. Ironside, A. E. Kelly, and J. M. L. Figueiredo, "A Self-Synchronized Optoelectronic Oscillator based on an RTD Photo-Detector and a Laser Diode", IEEE Photonics Technology Letters, vol. 23, no. 16, pp. 1148-1150, 2011. [64] “The Dynamic Gain Modulation Performance of Adjustable Gain-Clamped Semiconductor Optical Amplifiers (AGC-SOA)” Liu, L. Michie, C. Kelly, A. E. Andonovic, I., Journal of Lightwave Technology , Volume: 29 Issue: 22 pp 3483 – 3489, 2011.

[65] McKendry, J. Massoubre, D. Zhang, S. Rae, B. Green, R. Gu, E. Henderson, R. Kelly, A. Dawson, M. “Visible-Light Communications Using a CMOS-Controlled Micro-Light-Emitting-Diode Array” Journal of Lightwave Technology, Volume: PP Issue: 99 On page(s): 1 - 1 ISSN: 0733-8724 Publications- Conference [66] “Wavelength Conversion by Cross Gain Modulation in a Semiconductor Laser Amplifier” , A.E.Kelly, D.A.O Davies and D. Nesset in proc of SIOE Cardiff ‘95. [67] “TWSLA-NOLM: The Universal High Speed All Optical Processor” A.D. Ellis, D.A.O Davies, T. Widdowson, D.M. Spirit, W.A. Pender, A.Kelly, G. Sherlock IEE Colloqium on Guided Wave Optical Signal Processing, 8 June 1995 [68] “Electro-Optical Correlation Using a Semiconductor Laser Amplifier for Spread Spectrum Systems” C.G.Wallace, A.E.Kelly, I. Andonovic, D.Uttamchandani IEE Colloqium on Guided Wave Optical Signal Processing, 8 June 1995 [69] “Tapered active layer laser device performance and its impact on low cost optoelectronics” I.F. Lealman, B.M Macdonald, J.V. Collins, P.J Fiddyment, C.A.Jones, R.G.Waller, M.J.Robertson, L.J.Rivers, C.M.Peed, K.Cooper, S.D.Perrin, M.W.Nield, M.J.Harlow and A Kelly, LEOS ‘95 San Francisco, October 95. [70] “Optical pulse pattern generation for self-synchronising 100 Gbit/s networks”, D C Rogers, J V Collins, C W Ford, J Lucek, M Shabeer, G Sherlock, D Cotter, K Smith, C M Peed, A E Kelly, P Gunning, D Nesset and I F Lealman Optical Fiber Communication '96, San Jose, February 1996 [71] “Nonlinear Optical Amplifiers for Ultra-High Speed All-Optical Wavelength Conversion and Switching.” D.D.Marcenac, A.E.Kelly, D.Nesset, Optical Amplifiers and their Applications, Monterey CA, 10-13th July 1996, paper FC3. [72] “Large Spot Size Semiconductor Optical Amplifiers” A E Kelly, I F Lealman, L J Rivers, S D Perrin and Mark Silver, The 1996 Semiconductor Laser and Amplifier Workshop 19-21 September 1996 Lillehammer, Norway. [73] “10GHz 2 ps actively mode locked fiber integrated semiconductor laser employing an electro-absorption modulator”, M.J Guy, J.R.Taylor, D.G.Moodie, A.E.Kelly, CLEO’97 Baltimore 18th-23rd 1997 paper CTuH5. [74] “A generic technology for low cost semiconductor optoelectronic devices” Collins_J_V, Lealman_I_F, Waller_R, Ford_C_W, Kelly_A, 9th Annual Meeting. IEEE Lasers and Electro-Optics Society 1996 Boston, MA, USA, 18-19 Nov. 1996 pp103-4 vol.2

[75] “Cross-gain modulation in semiconductor optical amplifiers: how fast can we go”, Dominique Marcenac, AE Kelly, D Nesset, paper FM1(invited), OSA Annual Meeting Oct 97 [76] “Speed and travelling wave effects in cross gain modulation in semiconductor optical amplifiers” D.D.Marcenac, A.E.Kelly, D. Nesset and D.G. Moodie, SOA based Components for Optical Networks, COST 240 workshop, Prague, Oct 27-28 1997 [77] “40 Gbit/s wavelength conversion over 24nm using FWM in an semiconductor optical amplifier with an optimised MQW active region” , A.E.Kelly, D.D.Marcenac and D. Nesset , SOA based Components for Optical Networks, COST 240 workshop, Prague, Oct 27-28 1997 [78] “All Optical Digital Information Processing” A.J. Poustie, K.J Blow, R.J.Manning and A.E.Kelly , IEE Colloquium on Optoelectronic Integration and Switching, 13 Nov 1997 [79] “The Packaging of Large Spot Semiconductor Optical Amplifiers” J. V Collins, A.E.Kelly, C.W.Ford, I.F.Lealman, IEEE Lasers and Electro-Optics Society 1997 10-13th Nov 1997 paper WP4 [80] "All-optical regenerative memory with full write/read capability" A. J. Poustie, A. E. Kelly, K. J. Blow and R. J. Manning, Nonlinear Guided Waves and their Applications April 1998. [81] 'An improved semiconductor amplifier for ultrafast all-optical signal processing', R.J. Manning, A.E. Kelly, A.J. Poustie, K.J. Blow, paper TuB7 OSA Topical meeting on NonLinear Optics 1998. [82] 'Demonstration of low-penalty time division demultiplexing from 40Gb/s to 10Gb/s via polarisation switching in a semiconductor optical amplifier', MFC Stephens , A Wonfor, AE Kelly D Nesset, RV Penty, CLEO Europe 1998 CFG7. [83] "All-optical pseudorandom bit sequence generator" A. J. Poustie, K. J. Blow, R.J. Manning and A. E. Kelly, CLEO-Europe 1998 CPD2.2. [84] “High Bitrate Operation of a Novel Optical Phase Conjugator using Inline Fibre DFB Lasers, “S Y Set, Y Yamashita, M Ibsen, R I Laming, D Nesset, A E Kelly and C Gilbertas ECOC ’98 Madrid paper TuA28 [85] “All-Optical Digital Signal Processing using Semiconductor Optical Amplifiers “, A.J. Poustie, K.J. Blow, R.J. Manning and A.E.Kelly , IEE Colloqium- New Developments in Optical Amplifiers, 2nd Nov 1998. [86] “All Optical Clock Divider and Shift Register at 10GHz and 20GHz”, R.J. Manning A.E.Kelly , K.J. Blow, A.J. Poustie and D. Nesset, IEE Colloqium- New Developments in Optical Amplifiers, 2nd Nov 1998.

[87] “Recent Progress in High Bit Rate Applications of Four Wave Mixing In SOAs”, D. Nesset, A.E. Kelly, D.D. Marcenac, A. Wonfor, and M.F.C. Stephens, IEE Colloqium- New Developments in Optical Amplifiers, 2nd Nov 1998. [88] “Recent advances in ultrafast all-optical signal processing”, R. J. Manning, A. J. Poustie, K. J. Blow and A. E. Kelly, Invited paper, Paper 3625-23, Photonics West, San Jose, U.S.A., 1999. [89] “40Gbit/s transmission over 186.6km of installed fibre using mid-span spectral inversion for dispersion compensation" D. Nesset, M.F.C. Stephens†, A. E. Kelly, C. Gilbertas, J. Reed, K.A. Williams†, S. Bouchoule‡, R. Kashyap, A.D. Ellis and D.G. Moodie , paper ThI3 OFC 99 San Diego 1999. [90] “All-optical parity checker”, A. J. Poustie, K. J. Blow, A. E. Kelly and R. J. Manning, Paper TuJ6, OFC ’99, San Diego, U.S.A., 1999. [91] “40Gbit/s field trial over 180km of standard fibre using mid span spectral inversion for dispersion compensation”, D. Nesset, M.F.C. Stephens†, A. E. Kelly, C. Gilbertas, J. Reed, K.A. Williams†, S. Bouchoule‡, R. Kashyap, A.D. Ellis and D.G. Moodie , IEE Colloquim on High speed and Long distance transmission , 25 March, 1999. [92] 'Approaches to Asychronous Ultrafast Optical Networks' , Andrew Ellis, David Cotter, Paul Gunning, Dave Moodie, Bob Manning, Terry Widdowson, Ian Phillips, Tony Kelly, Danny Pitcher, Julian Lucek, Derek Nesset and Raman Kashyap, UEO'99 Snowmass March 99. [93] “All-optical digital processing and switching”, A. J. Poustie, K. J. Blow, A. E. Kelly and R. J. Manning,, Invited paper, Photonics in Switching, Santa Barbara, U.S.A., 1999. [94] “Ultra High speed Signal processing using SOAs ", A.E.Kelly, D. Nesset, A.D.Ellis, I.D.Phillips, D.G.Moodie, R.J.Manning and R Kashyap, ACTS/COST/ ESPRIT workshop on Advanced Photonic Components and Subsystems, Brussels 5/5/99. [95] 'Approaches to Asychronous Ultrafast Optical Networks' , Andrew Ellis, David Cotter, Paul Gunning, Dave Moodie, Bob Manning, Terry Widdowson, Ian Phillips, Tony Kelly, Danny Pitcher, Julian Lucek, Derek Nesset and Raman Kashyap, ACTS/COST/ ESPRIT workshop on Advanced Photonic Components and Subsystems, Brussels 5/5/99. [96] "Wavelength conversion at 40 Gbit/s via cross-gain modulation in a distributed feedback laser integrated with a semiconductor optical amplifier", M.F.C. Stephens, D. Nesset, K.A. Williams, A.E. Kelly, R.V. Penty, I.H. White, M.J. Fice, paper We B4.2, ECOC'99

[97] "WDM-TDM transmultiplexing at 40 Gbit/s using an integrated DFB laser amplifier", K.A. Williams, M.F.C. Stephens, D. Nesset, A. E. Kelly, R.V. Penty and M.J. Fice, paper We B4.4, ECOC'99 [98] "Spectral modulation in spot-size converter lasers" F.H.G.M. Wijnands, I.F. Lealman, C.G. Crookes, M.J. Robertson, P.M. Charles, A.E. Kelly, R.M. Ash, paper Th D1.1, ECOC'99. [99] “All-optical binary counter”, A. J. Poustie, K. J. Blow, A. E. Kelly and R. J. Manning, Tu C3.1, ECOC'99. [100] "Recent Advances in All Optical Signal Processing using Semiconductor Optical Amplifiers", R. J. Manning, A. E. Kelly, I. D. Phillips, A. D. Ellis, A.J. Poustie and K. J. Blow, LEOS'99, Paper WG4 (invited). [101] "Ultrafast Optical Processing for Network Applications", A. D. Ellis, D. Pitcher, D. G. Moodie, A. E. Kelly, D. Nesset, I. D. Phillips, R. J. Manning and D. Cotter, LEOS'99, Paper ThN3(invited). [102] "80 Gbit/s optical clock recovery using an electrical phase locked loop, and commercially available components", I. D. Phillips, A. D. Ellis, T. Widdowson, D. Nesset, A. E. Kelly, Dirk Trommer, OFC 2000, Baltimore, Paper: ThP4. [103] “Ultra high speed wavelength conversion and regeneration using semiconductor optical amplifiers”, A.E.Kelly, Paper MB1 Optical Fibre Communications 2001, (invited). [104] “Ultra high speed wavelength conversion and regeneration using semiconductor optical amplifiers”, A.E.Kelly, Photonics in Switching 2001, Paper PThC (invited). [105] “Recent Advances in Semiconductor Optical Amplifiers”, C Tombling, C Michie, I Andonovic and A.E.Kelly, LEOS 2003 Tucson (invited) [106] “High performance semiconductor optical amplifiers”, A.E.Kelly, C Tombling, C Michie and I Andonovic, OFC 2004 paper ThS1 (invited) [107] “Hybridisation platform demonstrating wavelength conversion and regeneration at 10 and 20Gbit/s” I. Armstrong, I. Andonovic, J. Bebbington, C. Michie, C. Tombling and S. Fasham, A.E. Kelly, Y.J. Chai, R. V. Penty and I.H. White, OFC 2004 paper ThS4 [108] “Uncooled 40Gbit/s transmission over 40km of fibre using multilevel modulation of a highly linear laser”, A.Wonfor, R.V Penty, I. H. White, K. White, A. E. Kelly, C. Tombling, OFC2004 paper MF60 [109] W.K. Tan, A.C. Bryce, A.E. Kelly, J.H. Marsh, M.V. Maximov and V.M. Ustinov "35 GHz Pure Passively Mode Locked Quantum Dot Lasers operating close to 1.3

micron", presented at the Lasers and Electro-Optics Society Annual Meeting, LEOS 2004, Puerto Rico, 7-11 November 2004. [110] “Influence of operating temperature on passive mode locking of InGaAsP/InP laser diode” W. K. Tan, H. Y. Wong, A. E. Kelly, M. Sorel, J. H. Marsh, A. C. Bryce, European Semiconductor Laser Workshop, Glasgow, 23-24 Sept 05 [111] 'Extended Operating Temperature Range of Passively Mode Locked Laser Diode Based on Adaptable Saturable Design' W.K. Tan, H.Y. Wong, A.E. Kelly, M. Sorel, A.C. Bryce, J.H. Marsh, Indium Phosphide and Related Materials Conference, Glasgow,8-12 May 2005 . [112] “Influence of operating temperature on passive mode locking of InGaAsP/InP laser diode” W. K. Tan, H. Y. Wong, A. E. Kelly, M. Sorel, J. H. Marsh, A. C. Bryce, LEOS Annual meeting, Sidney, 23 - 27 October 2005 [113] Derek Nesset, Shamil Appathurai, Russell Davey A E Kelly “Extended Reach GPON Using High Gain Semiconductor Optical Amplifiers” paper JWA107, OFC/NFOEC 2008, February 24-28, 2008, San Diego Convention Centre, San Diego, California, USA [114] J. McGeough, A. E. Kelly and C.M. Michie ‘1300nm SOAs for Passive Optical Networks’, Semiconductor and Integrated Optoelectronics SIOE’08, Cardiff , Wales, UK, 31 March - 2 April 2008 [115] C. Michie, A. E. Kelly, and I. Andonovic, ‘Semiconductor Optical Amplifiers in Future Passive Optical Networks’ 21st Annual Meeting of The IEEE Lasers & Electro-Optics Society, Newport Beach, CA | 9-13 November 2008 Page(s):667 - 668 (invited) [116] Craig Michie, A E Kelly, Ivan Andonovic, J McGeough ‘Reach extension of Passive Optical Networks Using Semiconductor Optical Amplifiers’, 10th International Conference on Transparent Optical Networks, vol 1, pp194, 2008 (invited) [117] S. Karagiannopoulos, Anthony E. Kelly, C. Michie, C. Tombling, W. I. Madden, I. Andonovic3, ‘S-Band RSOAs for WDM PONs’, OFC/NFOEC March 22-26, 2009, San Diego Convention Centre, San Diego, California, USA. [118] C Michie, I Andonovic, A.E Kelly, ‘Reflective SOAs for PONs’ International Conference on Transparent Optical Networks June 2009 (invited) [119] I Andonovic, C Michie, A. E. Kelly ‘Reflective SOAs for PONs’ 14th OptoElectronics and Communications Conference (OECC 2009), Hong Kong CEC, 17/7/09 (invited) [120] Craig Michie, A E Kelly , Lin Liu, Ivan Andonovic, Wende-De Zhong ‘Semiconductor Optical Amplifiers in Future Passive Optical Networks’ ICICS 2009 Macau, China.

[121] N Laurand, J McKendry, B. Guilhabert, R P Green, A E Kelly, E Gu and M. D.Dawson, “Modulation bandwidth and effective carrier lifetime of colloidal quantum-dot nanocomposites”, QD 2010 conference, Nottingham, Poster II, P47 (April 2010) [122] B. Romeira, J. M. L. Figueiredo, C. N. Ironside, A. E. Kelly, T. J. Slight, "Optical injection locking of a resonant tunneling diode - optical waveguide photo-detector", 15th European Conference on Integrated Optics (ECIO 2010), paper ThF4, Cambridge, , 7-9 April, 2010. [123] Hou, L.; Haji, M.; Dylewicz, R.; Stolarz, P.; Kelly, A.E.; Arnold, J.M.; Marsh, J.H.; De La Rue, R.M.; Sorel, M.; Bryce, A.C.; Qiu, B.C “Monolithic 40 GHz passively mode locked AlGaInAs/InP 1.55 µm MQW laser with surface-etched Bragg gratings” ; Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 16-21 May 2010 [124] B. Romeira, T. J. Slight, A. E. Kelly, C. N. Ironside, J. M L Figueiredo,"Microwave Photonic Oscillators for Femtocellular Access Networks", 15th European Conference on Networks and Optical Communications (NOC 2010), Components and modulation strategies, Faro-Algarve, Portugal, 8-10 Jun 2010. [125] Lin Liu, C Michie, A. E. Kelly, I Andonovic “Numerical analysis of adjustable gain-clamped semiconductor optical amplifier (AGC-SOA) performance”. 12th International Conference on Transparent Optical Networks, June 27 2010-July 1 2010. [126] B. Romeira, K. Seunarine, C. N. Ironside, A. E. Kelly, T. J. Slight, J. M. L. Figueiredo “An Optoelectronic Oscillator based on a Resonant Tunneling Diode Photo-Detector Integrated Chip”, ” 23rd Annual Meeting of the Photonics Society, , Denver, 17-20 November 2010 [127] N. Laurand, J. McKendry, B. Guilhabert, A. E. Kelly, B. Rae, R. Henderson and M.D. Dawson “Hybrid organic/inorganic nanocrystal-based composite for color-conversion and visible light communications”, 23rd Annual Meeting of the Photonics Society, , Denver, 17-20 November 2010 [128] M Haji, L Hou, A. E. Kelly, R. Green, G. Mezosi, J. Javaloyes, A.C. Bryce, J. M. Arnold “Sub-Picosecond Pulse Generation using Fast Saturable Absorption in AlGaInAs/InP Quantum Wells”, 23rd Annual Meeting of the Photonics Society, Denver, 17-20 November 2010 [129] Lin Liu, Craig Michie, Anthony E. Kelly, Ivan Andonovic “Packet Equalisation in PONs using Adjustable Gain-Clamped Semiconductor Optical Amplifiers (AGC-SOA)”, Photonics Global Conference, Singapore 14-16 December 2010. [130] Jonathan McKendry, Richard P. Green, A. E. Kelly, Zheng Gong, Benoit Guilhabert, David Massoubre, Erdan Gu and Martin D. Dawson “High Speed Visible

Light Communications Using Individual Pixels in a Micro Light-Emitting Diode Array” Photon. Tech. Lett., Vol 22, No.18, pp 1346-1348, Sept 2010. [131] Ivan Glesk, Marc Sorel, Anthony E. Kelly and Paul R. Prucnal “Enhancing Performance of Optical Communication Systems with Advanced Optical Signal Processing” Journal of Networking, Nov 2010 [132] B. Romeira, J. M. L. Figueiredo, C. N. Ironside, A. E. Kelly, T. J. Slight, "Optical Control of a Resonant Tunneling Diode Microwave-Photonic Oscillator", IEEE Photonics Technology Letters, Nov 2010. [133] N. Laurand, J. McKendry, B. Guilhabert, A. E. Kelly, B. Rae, R. Henderson and M.D. Dawson “Hybrid organic/inorganic nanocrystal-based composite for color-conversion and visible light communications”, 23rd Annual Meeting of the Photonics Society, , Denver, 17-20 November 2010 [134] B. Romeira, K. Seunarine, C. N. Ironside, A. E. Kelly, T. J. Slight, J. M. L. Figueiredo “An Optoelectronic Oscillator based on a Resonant Tunneling Diode Photo-Detector Integrated Chip”, ” 23rd Annual Meeting of the Photonics Society, , Denver, 17-20 November 2010 [135] M Haji, L Hou, A. E. Kelly, R. Green, G. Mezosi, J. Javaloyes, A.C. Bryce, J. M. Arnold “Sub-Picosecond Pulse Generation using Fast Saturable Absorption in AlGaInAs/InP Quantum Wells”, 23rd Annual Meeting of the Photonics Society, Denver, 17-20 November 2010 [136] Lin Liu, Craig Michie, Anthony E. Kelly, Ivan Andonovic “Packet Equalisation in PONs using Adjustable Gain-Clamped Semiconductor Optical Amplifiers (AGC-SOA)”, Photonics Global Conference, Singapore 14-16 December 2010. [137] L. Hou, M. Haji, A. Kelly, J. Arnold, and A. C. Byce, "Mode-Locked Laser Array Monolithically Integrated with SOA and EA-Modulator," in Optical Fiber Communication Conference, paper OThG4, 2011 [138] “Review of optoelectronic oscillators based on modelocked lasers and resonant tunneling diode optoelectronics”, C. N. Ironside, Mohsin Haji, Lianping Hou, Jehan Akbar, Anthony E. Kelly, K. Seunarine, Bruno Romeira, and José M. L. Figueiredo. (Invited Paper) Applications of Optics and Photonic (AOP), Braga, 2011 [139] “A low jitter passively mode locked laser diode at 40 GHz using regenerative feedback via optical fibre loop”, M. Haji, A. Kelly, L. Hou, A. Bryce, J. Arnold and C. N. Ironside , CLEO/Europe-EQEC, paper CB12.5 , 2011. [140] “A Liénard Optoelectronic Oscillator with Time-Delayed Feedback” B. Romeira, K. Seunarine, C. Ironside, J. Javaloyes, A. Kelly, J. Figueiredo, CLEO/Europe-EQEC, paper CI3.2 , 2011 [141] “Packet equalisation in PONs using adjustable gain-clamped semiconductor optical amplifiers (Invited)” L. Liu, C. Michie, A.E. Kelly, I. Andonovic, 13th

International Conference on Transparent Optical Networks, June 26 - 30, 2011, Stockholm Paper Tu.B6.4 [142] J. McKendry, A.E. Kelly, S. Zhang, B.R. Rae, D. Massoubre, Z. Gong, E. Gu, R.K. Henderson and M.D. Dawson, “CMOS-controlled micro-LED arrays for visible light communications”, 9th International Conference on Nitride Semiconductors (ICNS9, Glasgow, July 2011) [143] “Semiconductor Optical Amplifiers in Avionics” C Michie, W Johnstone , I Andonovic , E Murphy , H White, A Kelly , Symposium on Optical Avionic Networks ECOC 2011 [144] J. Herrnsdorf, B. Guilhabert, J. McKendry, Z. Gong, D. Massoubre, Y. Chen, S. Zhang, A. L. Kanibolotsky, A. R. Mackintosh, P. J. Skabara, A.E. Kelly, E. Gu, N. Laurand and M.D. Dawson “Hybrid GaN/Organic Polymer Photonic Crystal LED” Annual Meeting of the IEEE Photonics Society, (Arlington VA, Oct. 2011) [145] “High power (130 mW) 40 GHz 1.55 μm mode-locked DBR lasers with integrated optical amplifiers” Jehan Akbar, Lianping Hou, Mohsin Haji, Rafal Dylewicz, John H. Marsh, A.Catrina.Bryce and Anthony. E. Kelly Annual Meeting of the IEEE Photonics Society, (Arlington VA, Oct. 2011) paper TuX3. [146] “Semiconductor Optical Amplifiers in Avionics” (Invited), C. Michie, W. Johnstone, I. Andonovic, E. Murphy, H. J. White and A. E. Kelly, AVF 2011 IEEE Photonics Society Avionics, Fiber Optics and Photonics Technology Conference paper We1.