Dr Roger Giddings

Senior Lecturer in Optical Communications & DSP

  1. Published

    Digital Orthogonal Filtered Optical OFDM for Elastic PONs

    Tang, J., Giddings, R. P., Tang, J. M., Bolea, M. & Giddings, R., 9 Mar 2014.

    Research output: Contribution to conferencePaper

  2. Published

    Directly Modulated VCSEL-Based Real-Time 11.25-Gb/s Optical OFDM Transmission Over 2000-m Legacy MMFs

    Mansoor, S. P., Tang, J., Hugues-Salas, E., Jin, X. Q., Giddings, R. P., Hong, Y., Mansoor, S., Villafranca, A. & Tang, J. M., 1 Feb 2012, In: IEEE Photonics Journal. 4, 1, p. 143-154

    Research output: Contribution to journalArticlepeer-review

  3. Published

    Drop Signal Phase Offset Independent Soft-ROADMs for Point-to-Multipoint 5G Fronthauls

    Giddings, R., Gonem, O. & Tang, J., Jul 2023, p. 1-6. 6 p.

    Research output: Contribution to conferencePaperpeer-review

  4. Published

    End-to-end real-time DSP for high-speed optical access/metro links

    Giddings, R. P. & Tang, J. M., 16 Sept 2013, 18th OptoElectronics and Communications Conference . p. 1-2 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

  5. Published

    End-to-end real-time demonstration of 128-QAM-encoded optical OFDM transmission with a 5.25bit/s/Hz spectral efficiency over IMDD systems

    Jin, X. Q., Giddings, R. P., Hugues-Salas, E. & Tang, J. M., 2010, p. 1-3. 3 p.

    Research output: Contribution to conferencePaperpeer-review

  6. Published

    Error-Controlled Iterative Algorithms for Digital Linearization of IMDD-based Optical Fibre Transmission Systems

    Jin, X., Jin, W., Zhong, Z., Jiang, S., Raibhjandari, S., Hong, Y., Giddings, R. & Tang, J., 18 Jul 2022, In: Journal of Lightwave Technology.

    Research output: Contribution to journalArticlepeer-review

  7. Published

    Experimental Demonstration of Cross-Channel Interference Cancellation for Digital Filter Multiple Access PONs

    Giddings, R. P., Duan, X. & Tang, J., 23 Mar 2016.

    Research output: Contribution to conferencePaperpeer-review

  8. Published

    Experimental Demonstration of DSP-enabled Drop Operations of Flexible ROADMs Excluding Optical Filters and O-E-O Conversions

    Tang, J., Duan, X., Deng, M., Jin, W., Giddings, R. P. & Mansoor, S., 22 Mar 2016.

    Research output: Contribution to conferencePaperpeer-review

  9. Published

    Experimental Demonstration of Real-Time Optical OFDM Transmission at 11.25 Gb/s Over 500-m MMFs Employing Directly Modulated DFB Lasers

    Giddings, R. P., Hugues-Salas, E., Charbonnier, B. & Tang, J. M., 2011, In: IEEE Photonics Technology Letters. 23, 1, p. 51-53 3 p.

    Research output: Contribution to journalArticlepeer-review

  10. Accepted/In press

    Experimental Demonstration of Soft-ROADMs with Dual-Arm Drop Elements for Future Optical-Wireless Converged Access Networks

    Gonem, O., Giddings, R. & Tang, J., 25 Oct 2023, (Accepted/In press) In: Journal of Lightwave Technology. 13 p., JLT-32905-2023.R1 .

    Research output: Contribution to journalArticlepeer-review

  11. Published

    Experimental Demonstration of Upstream Transmission in Digital Filter Multiple Access PONs with Real-time Reconfigurable Optical Network Units

    Giddings, R., Duan, X., Mansoor, S. & Tang, J., 26 Jan 2017, In: IEEE Journal of Optical Communications and Networking. 9, 1, p. 45-52 7 p.

    Research output: Contribution to journalArticlepeer-review

  12. Published

    Experimental Demonstration of a Real-Time Digital Filter Multiple Access PON with Low Complexity DSP-Based Interference Cancellation

    Al-Rawachy, E., Giddings, R. P. & Tang, J., 1 Sept 2019, In: Journal of Lightwave Technology. 37, 17, p. 4315-4329 14 p.

    Research output: Contribution to journalArticlepeer-review

  13. Published

    Experimental Demonstrations of Concurrent Adaptive Inter-ONU and Upstream Communications in IMDD Hybrid SSB OFDM-DFMA PONs

    Zhong, Z., Jin, W., He, J., Chang, D., Giddings, R., Hong, Y., O'Sullivan, M., Durrant, T., Mariani, G., Trewern, J. & Tang, J., 6 Jun 2021.

    Research output: Contribution to conferencePaperpeer-review

  14. Published

    Experimental Demonstrations of Hybrid OFDM-Digital Filter Multiple Access PONs

    Jin, W., Zhong, Z., He, J., Sankoh, A., Giddings, R., Hong, Y., Pierce, I., O'Sullivan, M., Laperle, C., Lee, J., Mariani, G., Durrant, T. & Tang, J., 1 Jul 2020, In: IEEE Photonics Technology Letters. 32, 13, p. 751-754

    Research output: Contribution to journalArticlepeer-review

  15. Published

    Experimental Demonstrations of Matching Filter-free Digital Filter Multiplexed SSB OFDM IMDD Transmission Systems

    Zhong, Z., Jin, W., Dong, Y., Sankoh, A., He, J., Hong, Y., Giddings, R., Pierce, I., O'Sullivan, M., Lee, J., Mariani, G., Durrant, T. & Tang, J., Apr 2021, In: IEEE Photonics Journal. 13, 2, 12 p., 7900512.

    Research output: Contribution to journalArticlepeer-review

  16. Published

    Experimental demonstration and optimisation of a synchronous clock recovery technique for real-time end-to-end optical OFDM transmission at 11.25Gb/s over 25km SSMF

    Tang, J., Giddings, R. P. & Tang, J. M., 28 Jan 2011, In: Optics Express. 19, 3, p. 2831-2845

    Research output: Contribution to journalArticlepeer-review

  17. Published

    Experimental demonstration of a DSP-based cross-channel interference cancellation technique for application in digital filter multiple access PONs

    Giddings, R., Al-Rawachy, E. & Tang, J., 14 Feb 2017, In: Optics Express. 25, 4, p. 3850-3862 13 p., 270560.

    Research output: Contribution to journalArticlepeer-review

  18. Published

    Experimental demonstration of a record high 11.25Gb/s real-time optical OFDM transceiver supporting 25km SMF end-to-end transmission in simple IMDD systems

    Giddings, R. P., Jin, X. Q., Hugues-Salas, E., Giacoumidis, E., Wei, J. L. & Tang, J., 1 Mar 2010, In: Optics Express. 18, 6, p. 5541-5555

    Research output: Contribution to journalArticlepeer-review

  19. Published
  20. Published

    Experimental demonstration of colourless real-time end-to-end optical OFDM transmission at 7.5Gb/s over 25km SSMF using a 1GHz RSOA

    Giddings, R. P., Hugues-Salas, E., Jin, X. Q., Wei, J. L. & Tang, J. M., 2010, p. 1-6. 6 p.

    Research output: Contribution to conferencePaperpeer-review

  21. Published

    Experimental demonstration of real-time 3Gb/s optical OFDM transceivers.

    Tang, J., Giddings, R. P., Jin, X. Q. & Tang, J. M., 14 Sept 2009, In: Optics Express. 17, 19, p. 16654-16665

    Research output: Contribution to journalArticlepeer-review

  22. Published

    Experimental demonstration of record high 11.25Gb/s real-time end-to-end optical OFDM transceivers for PONs

    Giddings, R. P., Jin, X. Q., Hugues-Salas, E., Giacoumidis, E. & Tang, J. M., 2010, p. 1-13. 13 p.

    Research output: Contribution to conferencePaperpeer-review

  23. Published

    Experimental demonstration of record high 19.125Gb/s real-time end-to-end dual-band optical OFDM transmission over 25km SMF in a simple EML-based IMDD system

    Giddings, R. P., Hugues-Salas, E. & Tang, J., 23 Aug 2012, In: Optics Express. 20, 18, p. 20666-20679

    Research output: Contribution to journalArticlepeer-review

  24. Published

    Experimental demonstrations and extensive comparisons of end-to-end real-time optical OFDM transceivers with adaptive bit and/or power loading

    Tang, J., Jin, X. Q., Wei, J. L., Giddings, R. P., Quinlan, T., Walker, S. & Tang, J. M., 1 Jun 2011, In: IEEE Photonics Journal. 3, 3, p. 500-511

    Research output: Contribution to journalArticlepeer-review

  25. Published

    Experimental demonstrations of 30Gb/s/λ digital orthogonal filtering-multiplexed multiple channel transmissions over IMDD PON systems utilizing 10G-class optical devices

    Deng, M., Sankoh, A., Giddings, R. & Tang, J., 25 Sept 2017, In: Optics Express. 25, 20, p. 24251-24261

    Research output: Contribution to journalArticlepeer-review