Research Portal

Professor Paul Spencer

Pro Vice-Chancellor [Research]

Affiliations

ORCID: 0000-0002-2791-6719

Contact info

Position: Dean of College of Environmental Sciences and Engineering, Professor

Email: p.spencer@bangor.ac.uk

Phone: (01248) 382738

Location: Room 145, Dean Street

 

Prof Paul S. Spencer received a B.Sc. degree in applied physics and a Ph.D. degree in electronic engineering from the University of Bath, in 1990 and 1994, respectively. From 1994 to 1996, he was a research assistant at the University of Bath. In 1996, he moved to Bangor becoming a lecturer in 1998, a senior lecturer in 2003 and receiving a Personal Chair in 2006. In 2007 he was appointed Head of the School of Electronic Engineering, a post he held for seven years. In 2009 he was appointed Head of the College of Physical and Applied Sciences and in 2017 he was appointed Dean of the College of Environmental Sciences and Engineering

His main research interests are semiconductor laser dynamics, optical feedback effects, pulse propagation, and optical waveguide properties of optoelectronic devices. He has been an author on over 100 journal papers and 140 conference papers and is a regular reviewer archival journals. In 2000 he won the Science, Engineering and Technology (SET) best engineering poster award.

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  1. Published

    Analysis of Experimental Data from a Chaos Communication Channel.

    Lea, S. & Spencer, P. S., 1 Jan 2009.

    Research output: Contribution to conference › Paper

  2. Published

    Analysis of chaos generated by a modulated self-pulsating laser diode

    Walker, R., Rees, P., Pierce, I., Spencer, P. S. & Roberts, G. W., 8 Apr 2005, In: IEE Proceedings: Optoelectronics. 152, 2, p. 90-96

    Research output: Contribution to journal › Article › peer-review

  3. Published

    Analysis of spatial field profile in integrated external cavity diode lasers.

    Causa, F., Rees, P., Spencer, P. S. & Sarma, J., 1 Apr 2004.

    Research output: Contribution to conference › Paper

  4. Published

    Anticipated chaos in a nonsymmetric coupled external-cavity-laser system.

    Rees, P., Spencer, P. S., Pierce, I., Sivaprakasam, S. & Shore, K. A., 1 Sept 2003, In: Physical Review A. 68, 3, p. 033818

    Research output: Contribution to journal › Article › peer-review

  5. Published

    Anticipating synchronization in a bi-directional laser diode configuration.

    Sivaprakasam, S., Spencer, P. S., Rees, P., Pierce, I. & Shore, K. A., 1 Jan 2002.

    Research output: Contribution to conference › Paper

  6. Published

    Anticorrelation polarization dynamics in VCSELs

    Hong, Y., Paul, J., Spencer, P. S. & Shore, K. A., 11 Sept 2006.

    Research output: Contribution to conference › Paper

  7. Published

    Bias-current dependence of anticorrelation polarization dynamics in vertical-cavity surface-emitting lasers with long external cavity

    Hong, Y., Paul, J., Spencer, P. S. & Shore, K. A., 21 Aug 2006, In: Applied Physics Letters. 89, 8, p. 081123

    Research output: Contribution to journal › Article › peer-review

  8. Published

    Broad tunable photonic microwave generation based on period-one dynamics of optical injection vertical-cavity surface-emitting lasers

    Ji, S., Hong, Y., Spencer, P., Benedikt, J. & Davies, I., 21 Aug 2017, In: Optics Express. 25, 17, p. 19863-1871 9 p.

    Research output: Contribution to journal › Article › peer-review

  9. Published

    Chaos and synchronization of self-pulsating laser diodes

    Jones, R. J., Rees, P., Spencer, P. & Shore, K. A., 1 Feb 2001, In: Journal of the Optical Society of America B: Optical Physics. 18, 2, p. 166-172

    Research output: Contribution to journal › Article › peer-review

  10. Published

    Chaos synchronisation and communication.

    Spencer, P. S., Shore, K. A., Sivaprakasam, S., Pierce, I., Peters-Flynn, S., Ju, R., Paul, J., Lee, M. W. & Rees, P., 1 Aug 2006.

    Research output: Contribution to conference › Paper

  11. Published

    Chaotic communications with external cavity laser diode.

    Shore, K. A., Lee, M. W., Paul, J., Hong, Y., Torre, M., Masoller, M., Ju, R. & Spencer, P. S., 1 Dec 2004.

    Research output: Contribution to conference › Paper

  12. Published

    Characteristics of microwave photonic signal generation using vertical-cavity surfaceemitting lasers with optical injection and feedback

    Xu, C., Chang, D., Fan, Y., Ji, S., Zhang, Z., Lin, H., Spencer, P. & Hong, Y., 1 May 2020, In: Journal of the Optical Society of America B: Optical Physics. 37, 5, p. 1394-1400

    Research output: Contribution to journal › Article › peer-review

  13. Published

    Collapse and revival of synchronisation of chaotic diode lasers.

    Arivazhagan, A. C., Sivaprakasam, S., Spencer, P. S. & Shore, K. A., 11 Sept 2008, In: Electronics Letters. 44, 19, p. 1137-1138

    Research output: Contribution to journal › Article › peer-review

  14. Published

    Communicating with Chaos.

    Sivaprakasam, S., Pierce, I., Spencer, P. S., Jones, R. J., Rees, P. & Shore, K. A., 1 Jan 2001.

    Research output: Contribution to conference › Paper

  15. Published

    Concealment of Chaos Time-Delay Signature in Three-Cascaded Vertical-Cavity Surface-Emitting Lasers

    Hong, Y., Quirce, A., Wang, B., Ji, S., Panajotov, K. & Spencer, P., 1 Aug 2016, In: IEEE Journal of Quantum Electronics. 52, 8

    Research output: Contribution to journal › Article › peer-review

  16. Published

    Concurrent synchronisation of chaotic external cavity laser diodes.

    Sivaprakasam, S., Paul, J., Spencer, P. S., Rees, P. & Shore, K. A., 1 Apr 2003.

    Research output: Contribution to conference › Paper

  17. Published

    Consequences of optical fibre propagation on chaotic data masking using laser diodes

    Peters-Flynn, S., Pierce, I., Rees, P. & Spencer, P. S., 1 May 2004.

    Research output: Contribution to conference › Paper

  18. Published

    Coupled cavity multi-mode model of laser diodes subject to optical feedback.

    Perkins, D., Spencer, P. S. & Shore, K. A., 1 Apr 2003.

    Research output: Contribution to conference › Paper

  19. Published

    Cross polarisation synchronisation of chaotic laser diodes.

    Ju, R. & Spencer, P. S., 1 Mar 2005.

    Research output: Contribution to conference › Paper

  20. Published

    Cross-polarisation enhancement in VCSELs subject to optical injection.

    Bandyopadhyay, S., Spencer, P. S. & Shore, K. A., 10 Jan 2004.

    Research output: Contribution to conference › Paper

  21. Published

    Design and fabrication of a 2mu quantum cascade laser.

    Banerjee, S., Spencer, P. S., Barlow, G. F. & Shore, K. A., 1 Jan 2003.

    Research output: Contribution to conference › Paper

  22. Published

    Design of Tunable Intersubband Semiconductor Lasers.

    Banerjee, S., Spencer, P. S. & Shore, K. A., 1 Mar 2005.

    Research output: Contribution to conference › Paper

  23. Published

    Design of a tunable quantum cascade laser with enhanced optical non-linearities.

    Banerjee, S., Spencer, P. S. & Shore, K. A., 1 Feb 2006, In: IEE Proceedings: Optoelectronics. 153, 1, p. 40-42

    Research output: Contribution to journal › Article › peer-review

  24. Published

    Determination of nonlinear modulation response of semiconductor laser diodes by quadrature detection

    Perkins, D., Pierce, I., Rees, P., Spencer, P. S., Shore, K. A. & Valle, A., 1 Sept 2001.

    Research output: Contribution to conference › Paper

  25. Published

    Dynamic regimes in semiconductor lasers subject to incoherent optical feedback

    Ju, R. & Spencer, P. S., 1 Aug 2005, In: Journal of Lightwave Technology. 23, 8, p. 2513-2523

    Research output: Contribution to journal › Article › peer-review

  26. Published

    Dynamics and spectra of VCSELs subject to optical injection.

    Hong, Y. H., Bandyopadhyay, S., Rees, P., Spencer, P. S. & Shore, K. A., 1 Jul 2002.

    Research output: Contribution to conference › Paper

  27. Published

    Dynamics of laser diodes subject to partially coherent optical feedback

    Ju, R., Spencer, P. S. & Shore, K. A., 1 Apr 2003.

    Research output: Contribution to conference › Paper

  28. Published

    Effect of bias current sweep rate on the polarisation switch point of VCSELs.

    Paul, J., Masoller, C., Hong, Y., Spencer, P. S. & Shore, K. A., 1 Apr 2006.

    Research output: Contribution to conference › Paper

  29. 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 journal › Article › peer-review

  30. 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 journal › Article › peer-review

  31. 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 journal › Article › peer-review

  32. 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 journal › Article › peer-review

  33. Published

    Experimental characterisation of chaos synchronisation 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 conference › Paper

  34. Published

    Experimental determination of message decoding quality in optical chaos communications using laser diode transmitters

    Spencer, P. S., Lee, M. W., Paul, J., Sivaprakasam, S. & Shore, K. A., 1 Oct 2004.

    Research output: Contribution to conference › Paper

  35. Published

    Experimental study of dynamical hysteresis of turn-on and turn-off in Vertical-Cavity Surface-Emitting Lasers.

    Hong, Y., Priyadarshi, S., Qader, A. A., Spencer, P. S. & Shore, K. A., 1 Jan 2010.

    Research output: Contribution to conference › Paper

  36. Published

    Experimental study of polarisation switching of vertical-cavity surface-emitting lasers as a dynamical bifurcation

    Paul, J., Masoller, C., Hong, Y., Spencer, P. S. & Shore, K. A., 1 Dec 2005.

    Research output: Contribution to conference › Paper

  37. Published

    Experimental study of polarization switching of vertical-cavity surface-emitting lasers as a dynamical bifurcation

    Paul, J., Masoller, C., Hong, Y., Spencer, P. S. & Shore, K. A., 15 Mar 2006, In: Optics Letters. 31, 6, p. 748-750

    Research output: Contribution to journal › Article › peer-review

  38. Published

    Extending the parameter space of anticipated synchronisation in laser diodes.

    Peters-Flynn, S., Pierce, I., Spencer, P. S. & Shore, K. A., 1 Apr 2004.

    Research output: Contribution to conference › Paper

  39. Published

    Flat Broadband Chaos in Vertical-Cavity Surface-Emitting Lasers Subject to Chaotic Optical Injection

    Hong, Y., Spencer, P. S. & Shore, K. A., 1 Dec 2012, In: IEEE Journal of Quantum Electronics. 48, 12, p. 1536-1541

    Research output: Contribution to journal › Article › peer-review

  40. Published

    Flat broadband chaos generation in a discrete-mode laser subject to optical feedback

    Chang, D., Zhong, Z., Tang, J., Spencer, P. & Hong, Y., 21 Dec 2020, In: Optics Express. 28, 26, p. 39076-39083

    Research output: Contribution to journal › Article › peer-review

  41. Published

    Frequency domain analysis of the chaotic synchronization of injection-locked semiconductor lasers

    Lea, S. & Spencer, P. S., 28 Mar 2007.

    Research output: Contribution to conference › Paper

  42. Published

    Frequency domain analysis of the chaotic synchronization of injection-locked semiconductor lasers.

    Lea, S. J. & Spencer, P. S., 1 Mar 2008, In: Optical and Quantum Electronics. 40, 2-4, p. 97-108

    Research output: Contribution to journal › Article › peer-review

  43. Published

    Frequency shifted feedback in DFB laser diodes.

    Paul, J., Hong, Y. H., Spencer, P. S., Pierce, I. & Shore, K. A., 1 Apr 2008.

    Research output: Contribution to conference › Paper

  44. Published

    GHz Bandwidth Message Transmission Using Chaotic Vertical-Cavity Surface-Emitting Lasers

    Hong, Y., Lee, M. W., Paul, J., Spencer, P. S. & Shore, K. A., 15 Nov 2009, In: Journal of Lightwave Technology. 27, 22, p. 5099-5105

    Research output: Contribution to journal › Article › peer-review

  45. Published

    GHz bandwidth message transmission using chaotic diode lasers.

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

    Research output: Contribution to conference › Paper

  46. Published

    Hysteresis dependence on injection power and frequency detuning in bistable VCSELs

    Hong, Y., Spencer, P. S. & Shore, K. A., 1 Apr 2001.

    Research output: Contribution to conference › Paper

  47. Published

    Identification of the optimum time-delay for chaos synchronisation regimes of semiconductor lasers

    Peters-Flynn, S., Spencer, P. S., Sivaprakasam, S., Pierce, I. & Shore, K. A., 1 Apr 2006.

    Research output: Contribution to conference › Paper

  48. Published

    Identification of the optimum time-delay for chaos synchronization regimes of semiconductor lasers

    Peters-Flynn, S., Spencer, P., Sivaprakasam, S., Pierce, I. & Shore, A., Apr 2006, In: IEEE Journal of Quantum Electronics. 42, 4, p. 427-434

    Research output: Contribution to journal › Article › peer-review

  49. Published

    Impact of orthogonal optical feedback on the polarization switching of vertical-cavity surface-emitting lasers

    Paul, J., Masoller, C., Hong, Y., Spencer, P. S. & Shore, K. A., 1 Aug 2007, In: Journal of the Optical Society of America B: Optical Physics. 24, 8, p. 1987-1994

    Research output: Contribution to journal › Article › peer-review

  50. Published

    Impact of polarization rotated feedback on polarization switching in VCSELs.

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

    Research output: Contribution to conference › Paper

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