Professor Paul Spencer

Pro Vice-Chancellor [Research]

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.

  1. 2020
  2. 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 journalArticlepeer-review

  3. 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 journalArticlepeer-review

  4. 2018
  5. Published

    Stabilization of Photonic Microwave Generation in Vertical-Cavity Surface-Emitting Lasers with Optical Injection and Feedback

    Hong, Y., Ji, S., Xue, C., Valle, A., Spencer, P. & Li, H., 1 Oct 2018, In: Journal of Lightwave Technology. 36, 19, p. 4347-4353

    Research output: Contribution to journalSpecial issuepeer-review

  6. 2017
  7. 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 journalArticlepeer-review

  8. 2016
  9. 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 journalArticlepeer-review

  10. 2015
  11. 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

  12. 2014
  13. Published

    Wideband Chaos With Time-Delay Concealment in Vertical-Cavity Surface-Emitting Lasers With Optical Feedback and Injection

    Hong, Y., Spencer, P. S. & Shore, K. A., 5 Feb 2014, In: IEEE Journal of Quantum Electronics. 50, 4, p. 236-242

    Research output: Contribution to journalArticlepeer-review

  14. 2013
  15. Published

    Photonic biosensors in detection of Haemoglobin and DNA: Invited Paper

    Chen, X., Burt, J. & Spencer, P., 2013.

    Research output: Contribution to conferencePaperpeer-review

  16. 2012
  17. 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 journalArticlepeer-review

  18. 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

  19. 2010
  20. Published

    Thermal effects and dynamical hysteresis in the turn-on and turn-off vertical-cavity surface-emitting lasers.

    Hong, Y., Masoller, C., Torre, M. S., Priyadarshi, S., Qader, A. A., Spencer, P. S. & Shore, K. A., 1 Nov 2010, In: Optics Letters. 35, 21, p. 3688-3690

    Research output: Contribution to journalArticlepeer-review

  21. 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 conferencePaper

  22. 2009
  23. 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 journalArticlepeer-review

  24. Published

    Analysis of Experimental Data from a Chaos Communication Channel.

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

    Research output: Contribution to conferencePaper

  25. Published

    Pseudo Random Bit Sequence Transmission in Chaos Communication Channels.

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

    Research output: Contribution to conferencePaper

  26. 2008
  27. Published

    Transmission Performance of Adaptively Modulated Optical OFDM Modems Using Subcarrier Modulation over Worst-Case Multimode Fibre Links

    Zheng, X., Tang, J. & Spencer, P. S., 10 Oct 2008, In: IEEE Communications Letters. 12, 10, p. 788-790

    Research output: Contribution to journalArticlepeer-review

  28. 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 journalArticlepeer-review

  29. Published

    Statistical Investigations of the Transmission Performance of Adaptively Modulated Optical OFDM Signals in Multimode Fiber Links

    Jin, X. Q., Tang, J., Qiu, K. & Spencer, P. S., 1 Sept 2008, In: Journal of Lightwave Technology. 26, 17-20, p. 3216-3224

    Research output: Contribution to journalArticlepeer-review

  30. 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

  31. Published
  32. 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 conferencePaper

  33. 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

  34. 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 journalArticlepeer-review

  35. Published

    Optimization of adaptively modulated optical OFDM modems for multimode fiber-based local area networks

    Jin, X., Tang, J., Spencer, P. S. & Shore, K. A., 1 Mar 2008, In: Journal of Optical Networking. 7, 3, p. 198-214

    Research output: Contribution to journalArticlepeer-review

  36. Published

    Influence of low-frequency modulation on polarization switching of VCSELs subject to optical feedback

    Hong, Y., Paul, J., Spencer, P. S. & Shore, K. A., 1 Jan 2008, In: IEEE Journal of Quantum Electronics. 44, 1-2, p. 30-35

    Research output: Contribution to journalArticlepeer-review

  37. 2007
  38. Published

    Optical frequency-domain ranging using a frequency-shifted feedback distributed-feedback laser.

    Paul, J., Hong, Y. H., Spencer, P. S., Pierce, I. & Shore, K. A., 1 Dec 2007, In: IET Optoelectronics. 1, 6, p. 277-279

    Research output: Contribution to journalArticlepeer-review

  39. Published

    Simple and accurate optical frequency domain ranging using off-the-shelf DFB lasers subject to frequency-shifted optical feedback

    Paul, J., Hong, Y., Spencer, P., Pierce, I. & Shore, K. A., 1 Nov 2007, In: IEEE Photonics Technology Letters. 19, 21-24, p. 1708-1710

    Research output: Contribution to journalArticlepeer-review

  40. 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 journalArticlepeer-review

  41. Published
  42. Published

    Polarization-switching of VCSELs under orthogonal optical feedback: experiments and theory

    Paul, J., Masoller, C., Hong, Y., Spencer, P. S. & Shore, K. A., 18 Jun 2007.

    Research output: Contribution to conferencePaper

  43. 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 conferencePaper

  44. Published

    Modeling polarization competition in vertical-cavity surface-emitting lasers with current modulation

    Spencer, P. S., Torre, M. S., Masoller, C. & Shore, K. A., 1 Apr 2007.

    Research output: Contribution to conferencePaper

  45. 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 conferencePaper

  46. 2006
  47. Published

    Optical Chaos Communications using Laser Diodes.

    Lee, M. W., Paul, J., Hong, Y., Pierce, I., Spencer, P. S. & Shore, K. A., 21 Nov 2006.

    Research output: Contribution to conferencePaper

  48. Published

    Optical feedback dependence of anticorrelation polarization dynamics in vertical-cavity surface-emitting lasers

    Hong, Y., Paul, J., Spencer, P. S. & Shore, K. A., 1 Nov 2006, In: Journal of the Optical Society of America B: Optical Physics. 23, 11, p. 2285-2290

    Research output: Contribution to journalArticlepeer-review

  49. Published

    Optical feedback dependence of anticorrelation polarization dynamics in vertical-cavity surface-emitting lasers

    Hong, Y., Paul, J., Spencer, P. S. & Shore, K. A., 1 Oct 2006.

    Research output: Contribution to conferencePaper

  50. Published

    Anticorrelation polarization dynamics in VCSELs

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

    Research output: Contribution to conferencePaper

  51. 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 journalArticlepeer-review

  52. Published

    The effects of polarization-resolved optical feedback on the relative intensity noise and polarization stability of vertical-cavity surface-emitting lasers

    Hong, Y., Paul, J., Spencer, P. & Shore, K. A., 7 Aug 2006, In: Journal of Lightwave Technology. 24, 8, p. 3210-3216

    Research output: Contribution to journalArticlepeer-review

  53. Published

    Tunable quantum cascade lasers with phase-matched third harmonic generation

    Banerjee, S., Spencer, P. & Shore, K. A., 3 Aug 2006, In: Applied Physics Letters. 89, 5, p. 051113

    Research output: Contribution to journalArticlepeer-review

  54. 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 conferencePaper

  55. Published

    Optical chaos communications

    Shore, K. A., Hong, Y., Lee, M. W., Pierce, I., Paul, J. & Spencer, P. S., 1 Aug 2006.

    Research output: Contribution to conferencePaper

  56. Published

    Semiconductor lasers subject to polarisation-rotated optical feedback.

    Ju, R., Hong, Y. & Spencer, P. S., 1 Jun 2006, In: IEE Proceedings: Optoelectronics. 153, 3, p. 131-137

    Research output: Contribution to journalArticlepeer-review

  57. 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 conferencePaper

  58. 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 conferencePaper

  59. Published

    Influence of optical feedback on anticorrelation polarisation dynamics in VCSELs

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

    Research output: Contribution to conferencePaper

  60. Published

    Semiconductor lasers subject to incoherent optical feedback.

    Ju, R., Hong, Y., Pierce, I. & Spencer, P. S., 1 Apr 2006.

    Research output: Contribution to conferencePaper

  61. 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 journalArticlepeer-review

  62. 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 journalArticlepeer-review

  63. Published

    Synchronisation recovery in unidirectionally coupled semiconductor lasers

    Peters-Flynn, S., Pierce, I., Spencer, P. S. & Rees, P., 13 Feb 2006, In: IEE Proceedings: Optoelectronics. 153, 1, p. 8-12

    Research output: Contribution to journalArticlepeer-review

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