Professor K. Alan Shore

Emeritus Professor

Contact info

K. Alan Shore received a BA ( MA) in mathematics from the University of Oxford, Oxford, U.K., and the Ph.D. degree from the then University College, Cardiff, Wales, U.K.

He was a Lecturer with the University of Liverpool from 1979 to 1983 and with the University of Bath, where he became a Senior Lecturer in 1986, a Reader in 1990, and a Professor in 1995. He was a Visiting Researcher with the Center for High Technology Materials, University of New Mexico, Albuquerque, USA, in 1987. In 1989, he was a Visiting Researcher with the Huygens Laboratory, Leiden University, The Netherlands. From 1990 to 1991, he was with the Teledanmark Research Laboratory and the MIDIT Center of the Technical University of Denmark, Lyngby. He was a Guest Researcher with the Electrotechnical Laboratory, Tsukuba, Japan, in 1991. In 1992, he was a Visiting Professor with the Department of Physics, University de les IllesBalears, Palma–Majorca, Spain. He was a Visiting Lecturer with the Instituto de Fisica de Cantabria, Santander, Spain, from 1996 to 1998, and a Visiting Researcher with the Department of Physics, Macquarie University, Sydney, Australia, in 1996, 1998, 2000, 2002, 2005, and 2008. In 2001, he was a Visiting Researcher with the ATR Adaptive Communications Laboratories, Kyoto, Japan. From 2001 to 2008, he was the Director of Industrial and Commercial Optoelectronics (ICON), a Welsh Development Agency Centre of Excellence.

He has authored or co-authored more than 1000 contributions to archival journals, books, and technical conferences. With Prof. Deb Kane, he co-edited the research monograph Unlocking Dynamical Diversity. His research work has been principally in the area of semiconductor optoelectronic device design and experimental characterization with particular emphasis on nonlinearities in laser diodes and semiconductor optical waveguides. His current research interests include semiconductor laser nonlinear dynamics and its applications, and the dynamics  of semiconductor nanolasers.

In 1995, he was appointed to the Chair of Electronic Engineering at Bangor University. He was the Chair of the Welsh Optoelectronics Forum from 2006 to 2008 and has chaired the Photonics Academy for Wales, since its establishment in 2005. From 2008 to 2011, he was the Chair of the Quantum Electronics Commission of the International Union of Pure and Applied Physics.

Prof. Shore has been a Program Member for several OSA conferences. In 2010, he held a Japan Society for the Promotion of Science Invitation Fellowship with the Ultrafast Photonics Group, Graduate School of Materials Science, Nara Institute of Science and Technology, Nara, Japan.

He was a Co-Organizer of a Rank Prize Symposium on Nonlinear Dynamics in Lasers held at the Lake District, U.K., in 2002. He cofounded and from 1987 to 2012 acted as the Organizer and Program Committee Chair for the International Conference on Semiconductor and Integrated Optoelectronics (SIOE), which is held annually in Cardiff, Wales, U.K. He chaired the Education and Training in Optics and Photonics conference held at the Technium OpTIC, Wales, 2009. He coordinated International Year of Light activities in Wales during 2015.He chaired the Science and Technology Committee of the National Eisteddfod of Wales, Bodedern, 2017.

He was awarded the Science and Technology Medal of the National Eisteddfod of Wales, Boduan, 2023

He is a Fellow of the Optical Society of America, the Institute of Physics, and the Learned Society of Wales for which he has served as a Council Member from 2012 to 2015 and from 2016 to 2024 and as its General Secretary from 2017 to 2023.

He is a member of the 2023/2024 UK Young Academy Membership Selection Committee.

He is the  Manager for Wales of the Alumni Association of the Japan Society for the Promotion of Science ( JSPS)

  1. Published

    Detailed stability analysis of a short external cavity laser diode with variations in feedback phase.

    Jones, R. J., Rees, P., Spencer, P. S., Lawrence, J., Kane, D. M. & Shore, K. A., 1 Apr 2000.

    Research output: Contribution to conferencePaper

  2. Published

    Detuned side-mode injection for enhancing oscillation frequency of a semiconductor laser.

    Jones, R. J., Rees, P., Spencer, P. S. & Shore, K. A., 1 Feb 2001, In: IEE Proceedings: Optoelectronics. 148, 1, p. 35-39

    Research output: Contribution to journalArticlepeer-review

  3. Published

    Detuning technique for reducing pump pulse power dependence of the transparency condition in semiconductor optical amplifiers

    Tang, J. M., Spencer, P. S., Rees, P. & Shore, K. A., 1 Jul 2000.

    Research output: Contribution to conferencePaper

  4. Published

    Direct current modulation properties of semiconductor nano-lasers: Small signal and large signal regimes

    Sattar, Z. A. & Shore, K. A., 10 Jul 2014, p. 967-969.

    Research output: Contribution to conferencePaper

  5. Published

    Dithered time delays and chaos synchronization in lasers with multiple feedbacks.

    Shahverdiev, E. M. & Shore, K. A., 1 Jan 2009.

    Research output: Contribution to conferencePaper

  6. Published

    Dual and Dual-Cross synchronization in chaotic systems.

    Shahverdiev, E. M., Sivaprakasam, S. & Shore, K. A., 1 Jul 2002.

    Research output: Contribution to conferencePaper

  7. Published

    Dual and dual-cross synchronization in semiconductor lasers

    Shahverdiev, E. M., Sivaprakasam, S. & Shore, K. A., 1 Apr 2002.

    Research output: Contribution to conferencePaper

  8. Published

    Dual and dual-cross synchronizations in chaotic systems.

    Shahverdiev, E. M., Sivaprakasam, S. & Shore, K. A., 1 Feb 2003, In: Optics Communications. 216, 1-3, p. 179-183

    Research output: Contribution to journalArticlepeer-review

  9. Published

    Dual wavelength synchronisation for multiplexed optical chaos communication

    Lee, M. W. & Shore, K. A., 1 Apr 2004.

    Research output: Contribution to conferencePaper

  10. Published

    Dual-channel chaotic optical communications using external-cavity semiconductor lasers.

    Paul, J., Sivaprakasam, S. & Shore, K. A., 1 Mar 2004, In: Journal of the Optical Society of America B: Optical Physics. 21, 3, p. 514-521

    Research output: Contribution to journalArticlepeer-review

  11. Published

    Dual-time and cascaded anticipation of chaos synchronisation.

    Shahverdiev, E. M., Sivaprakasam, S. & Shore, K. A., 1 Jan 2002.

    Research output: Contribution to conferencePaper

  12. Published

    Duality of existence conditions for synchronization of unidirectionally coupled chaotic external cavity semiconductor lasers.

    Shahverdiev, E. M. & Shore, K. A., 25 Mar 2002, In: Physics Letters A. 295, 4, p. 217-219

    Research output: Contribution to journalArticlepeer-review

  13. Published

    Dynamical characterisation of laser diode subject to double optical feedback for chaotic optical communications.

    Lee, M. W., Rees, P., Shore, K. A., Ortin, S., Pesquera, L. & Valle, A., 1 Apr 2005, In: IEE Proceedings: Optoelectronics. 152, 2, p. 97-102

    Research output: Contribution to journalArticlepeer-review

  14. Published

    Dynamical characteristics of nano-lasers subject to optical injection and phase conjugate feedback

    Han, H. & Shore, K. A., Feb 2018, In: IET Optoelectronics. 12, 1, p. 25-29

    Research output: Contribution to journalArticlepeer-review

  15. Published

    Dynamics and Stability of Mutually Coupled Nano-Lasers

    Shore, K. A. & Han, H., Nov 2016, In: IEEE Journal of Quantum Electronics. 52, 11, 7 p., 2000306.

    Research output: Contribution to journalArticlepeer-review

  16. Published

    Dynamics of Electrically Pumped Semiconductor Nano-Laser Arrays

    Fan, Y., Shore, K. A. & Shao, X., 10 Nov 2023, In: Photonics. 10, 11, 1249.

    Research output: Contribution to journalArticlepeer-review

  17. Published

    Dynamics of VCSELs subject to optical feedback and optical injection

    Shore, K. A., Hong, Y. H., Paul, J., Torre, M. S., Masoller, C., Jeong, K. H., Kim, K. H., Yoo, B. S. & Roh, J., 1 Dec 2007.

    Research output: Contribution to conferencePaper

  18. Published

    Dynamics of a fabry-perot semiconductor laser with intermodal injection.

    Hong, Y. H. & Shore, K. A., 1 Apr 2000.

    Research output: Contribution to conferencePaper

  19. Published

    Dynamics of a laser diode driven optical nanomachine.

    Barlow, G. F. & Shore, K. A., 1 Feb 2006, In: IEE Proceedings: Optoelectronics. 153, 1, p. 43-46

    Research output: Contribution to journalArticlepeer-review

  20. Published

    Dynamics of nano-lasers subject to optical injection and optical feedback

    Shore, K. A. & Abdul Sattar, Z., 4 Mar 2016.

    Research output: Contribution to conferencePaperpeer-review

  21. Published

    Eavesdropping in all-optical data encryption using chaotic external-cavity diode lasers.

    Sivaprakasam, S., Paul, J., Spencer, P. S. & Shore, K. A., 1 Jul 2001.

    Research output: Contribution to conferencePaper

  22. Published

    Effect of bias current modulation rate on polarisation switching of external cavity VCSELS

    Hong, Y. H., Paul, J., Spencer, P. S. & Shore, K. A., 1 Apr 2007.

    Research output: Contribution to conferencePaper

  23. Published

    Effect of carrier heating on chirp and modulation response of directly modulated semiconductor laser diodes.

    Pierce, I., Rees, P., Spencer, P. S. & Shore, K. A., 1 Sept 2000, In: Journal of Modern Optics. 47, 11, p. 1969-1976

    Research output: Contribution to journalArticlepeer-review

  24. Published

    Effect of chaos pass filtering on message decoding quality using chaotic external-cavity laser diodes.

    Paul, J., Lee, M. W. & Shore, K. A., 1 Nov 2004, In: Optics Letters. 29, 21, p. 2497-2499

    Research output: Contribution to journalArticlepeer-review

  25. Published

    Effect of chaos pass filtering on multi-GHz message transmission using chaotic DFB laser diodes

    Paul, J., Lee, M. W. & Shore, K. A., 1 Jul 2005.

    Research output: Contribution to conferencePaper

  26. Published

    Effect of detuned DBRs on modal gain in VCSELs.

    Afonenko, A. A., Manak, I. S. & Shore, K. A., 1 Feb 2000, In: IEE Proceedings: Optoelectronics. 147, 1, p. 71-76

    Research output: Contribution to journalArticlepeer-review

  27. Published

    Effect of electric field on low temperature multisubband electron mobility in a coupled Ga0.5In0.5P/GaAs quantum well structure.

    Sahu, T. & Shore, K. A., 1 Jun 2010, In: Journal of Applied Physics. 107, 11, p. 113708

    Research output: Contribution to journalArticlepeer-review

  28. Published

    Effect of gain localization in circular-grating distributed feedback lasers.

    Turnbull, G. A., Carelton, A., Tahraouhi, A., Krauss, T. F., Samuel, I. D., Barlow, G. F. & Shore, K. A., 1 Nov 2005, In: Applied Physics Letters. 87, 20, p. 201101

    Research output: Contribution to journalArticlepeer-review

  29. Published

    Effects of current modulation on the transverse-mode dynamics of vertical-cavity surface-emitting lasers with weak optical feedback

    Torre, M. S., Masoller, C., Mandel, P. & Shore, K. A., 1 Jun 2003.

    Research output: Contribution to conferencePaper

  30. Published

    Effects of non-uniform optical pumping on threshold in polymer circular grating DFB lasers

    Barlow, G. F. & Shore, K. A., 1 Mar 2004.

    Research output: Contribution to conferencePaper

  31. Published

    Efficient polarization insensitive four-wave mixing using a semiconductor optical amplifier and one pump source in an optical loop.

    Tang, J. M., Spencer, P. S., Rees, P. & Shore, K. A., 1 Sept 2000.

    Research output: Contribution to conferencePaper

  32. Published

    Electrical characteristics of highly strained InGaAs/InAlAs 2 um quantum cascade light emitting devices

    Banerjee, S., Shore, K. A., Mitchell, C. J., Sly, J. L. & Missous, M., 1 May 2004.

    Research output: Contribution to conferencePaper

  33. Published

    Electron transport process in quantum cascade intersubband semiconductor lasers.

    Kalna, K., Cheung, C. Y. & Shore, K. A., 15 Feb 2001, In: Journal of Applied Physics. 89, p. 2001-2005

    Research output: Contribution to journalArticlepeer-review

  34. Published

    Emission characteristics of polymer circular grating distributed feed-back lasers

    Barlow, G. F. & Shore, K. A., 1 Jun 2003.

    Research output: Contribution to conferencePaper

  35. Published

    Energy transfer and message filtering in chaos communications using injection locked laser diodes.

    Murakami, A. & Shore, K. A., 1 May 2006, In: International Journal of Microwave and Optical Technology. 1, p. 181-187

    Research output: Contribution to journalArticlepeer-review

  36. Published

    Enhanced Flat Broadband Optical Chaos Using Low-Cost VCSEL and Fiber Ring Resonator

    Hong, Y., Chen, X., Spencer, P. & Shore, K., 6 Jan 2015, In: IEEE Journal of Quantum Electronics. 51, 3, p. 1200106

    Research output: Contribution to journalArticlepeer-review

  37. Published

    Enhanced TOAD performance by negative frequency-detuned signal and control picosecond Optical pulses.

    Tang, J. M., Spencer, P. S., Rees, P. & Shore, K. A., 1 May 2000, In: IEEE Journal of Quantum Electronics. 36, 5, p. 574-582

    Research output: Contribution to journalArticlepeer-review

  38. Published

    Enhanced chaos synchronization in unidirectionally coupled vertical-cavity surface-emitting semiconductor lasers with polarization-preserved injection

    Hong, Y., Lee, M. W., Paul, J., Spencer, P. S. & Shore, K. A., 15 Mar 2008, In: Optics Letters. 33, 6, p. 587-589

    Research output: Contribution to journalArticlepeer-review

  39. Published

    Enhanced intensity fluctuations in a laser diode subject to optical feedback

    Hong, Y. H., Masoller, C., Ju, R., Bandyopadhyay, S., Sivaprakasam, S., Spencer, P. S. & Shore, K. A., 1 Jun 2003.

    Research output: Contribution to conferencePaper

  40. Published

    Enhanced performance of nonlinear optical loop mirrors using SOA's with robust transparency

    Tang, J. M., Spencer, P. S., Rees, P. & Shore, K. A., 1 Sept 2000.

    Research output: Contribution to conferencePaper

  41. Published

    Enhanced performance of polarization-independent four-wave mixing in polarization-sensitive semiconductor optical amplifiers.

    Tang, J. M., Spencer, P. S. & Shore, K. A., 1 May 2001, In: IEEE Photonics Technology Letters. 13, 5, p. 496-498

    Research output: Contribution to journalArticlepeer-review

  42. Published

    Enhanced sensitivity to current modulation near dynamic instability in semiconductor lasers with optical feedback and optical injection.

    Torre, M. S., Masoller, C., Mandel, P. & Shore, K. A., 1 Feb 2004, In: Journal of the Optical Society of America B: Optical Physics. 21, 2, p. 302-306

    Research output: Contribution to journalArticlepeer-review

  43. Published

    Enhanced switching performance of terahertz optical asymmetric demultiplexer based on semiconductor optical amplifiers with robust transparency.

    Tang, J. M., Spencer, P. S., Rees, P. & Shore, K. A., 1 Apr 2000.

    Research output: Contribution to conferencePaper

  44. Published

    Enhanced transmission of nonlinear optical loop mirrors using SOA's with robust transparency.

    Tang, J. M., Spencer, P. S., Rees, P. & Shore, K. A., 1 Nov 2000.

    Research output: Contribution to conferencePaper

  45. Published

    Enhancement of chaotic signal bandwidth in vertical-cavity surface-emitting lasers with optical injection

    Hong, Y., Spencer, P. S. & Shore, K. A., 22 Feb 2012, In: Journal of the Optical Society of America B: Optical Physics. 29, 3, p. 415-419

    Research output: Contribution to journalArticlepeer-review

  46. Published

    Estimation of delay times from an external double cavity laser experiment

    Ortin, S., Lee, M. W., Pesquera, L., Shore, K. A. & Valle, A., 1 Jun 2004.

    Research output: Contribution to conferencePaper

  47. Published

    Experimental Investigations of Time-Delay Signature Concealment in Chaotic External Cavity VCSELs Subject to Variable Optical Polarization-Angle of Feedback.

    Priyadarshi, S., Hong, Y., Pierce, I. & Shore, K. A., 1 Jul 2013, In: IEEE Journal of Selected Topics in Quantum Electronics. 19, 4, p. 1700707

    Research output: Contribution to journalArticlepeer-review

  48. Published

    Experimental Study of Time-Delay Signatures in Vertical-Cavity Surface-Emitting Lasers Subject to Double-Cavity Polarization-Rotated Optical Feedback

    Lin, Y., Hong, Y. & Shore, K. A., 1 May 2014, In: Journal of Lightwave Technology. 32, 9, p. 1829-1836

    Research output: Contribution to journalArticlepeer-review

  49. Published

    Experimental and theoretical study of dynamical hysteresis and scaling laws in the polarization switching of vertical-cavity surface-emitting lasers

    Paul, J., Masoller, C., Mandel, P., Hong, Y., Spencer, P. S. & Shore, K. A., 1 Apr 2008, In: Physical Review A. 77, 4, p. 043803

    Research output: Contribution to journalArticlepeer-review

  50. Published

    Experimental characterisation of chaos synchronization in unidirectionally coupled VCSELs with polarisation-preserved and polarisation-selected optical injection

    Hong, Y. H., Lee, M. W., Paul, J., Spencer, P. S. & Shore, K. A., 1 Apr 2008.

    Research output: Contribution to conferencePaper