Dr Roger Giddings

Senior Lecturer in Optical Communications & DSP

  1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
  2. Cyhoeddwyd
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    25.25-Gb/s Real-Time Multi-Band Optical OFDM Transmission Over 300-m MMFs With IQ Modulated Passband

    Giddings, R. P., Hugues-Salas, E., Zhang, Q. W., Zhang, J. J., Wang, M. & Tang, J. M., 2013, Yn : IEEE Photonics Technology Letters. 25, 21, t. 2123-2125 3 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  4. Cyhoeddwyd

    Adaptability-enabled record-high and robust capacity-versus-reach performance of real-time dual-band optical OFDM signals over various OM1/OM2 MMF systems invited]

    Hugues-Salas, E., Zhang, Q., Giddings, R. P., Wang, M. & Tang, J., 2013, Yn : IEEE Journal of Optical Communications and Networking. 5, 10, A1-A11.

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  5. Cyhoeddwyd

    Adaptively modulated optical OFDM modems utilizing RSOAs as intensity modulators in IMDD SMF transmission systems.

    Tang, J., Wei, J. L., Hamie, A., Giddings, R. P., Hugues-Salas, E., Zheng, X., Mansoor, S. P. & Tang, J. M., 8 Ebr 2010, Yn : Optics Express. 18, 8, t. 8556-8573

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  6. Cyhoeddwyd

    Analytical Solution of Stage-dependent Bit Resolution of Full Parallel Variable Point FFTs for Real-time DSP Implementation

    Zhang, J., Wang, J., Giddings, R., Zhang, Q., Peng, J., Chen, J. & Tang, J., 15 Tach 2018, Yn : Journal of Lightwave Technology. 36, 22, t. 5177-5187

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  7. Cyhoeddwyd

    Colourless adaptively modulated optical OFDM transmitters using SOAs as intensity modulators.

    Tang, J., Wei, J. L., Yang, X. L., Giddings, R. P. & Tang, J. M., 25 Mai 2009, Yn : Optics Express. 17, 11, t. 9012-9027

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  8. Cyhoeddwyd

    DSP-Enabled Flexible ROADMs without Optical Filters and O-E-O Conversions

    Dong, Y., Tang, J., Jin, W., Duan, X., Dong, Y. X., Cao, B. Y., Giddings, R. P., Zhang, C. F., Qiu, K. & Tang, J. M., 20 Awst 2015, Yn : Journal of Lightwave Technology. 33, 19, t. 4124-4131

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  9. Cyhoeddwyd

    DSP-enabled reconfigurable and transparent spectral converters for converging optical and mobile fronthaul/backhaul networks

    Mao, M. Z., Giddings, R., Cao, B. Y., Xu, Y. T., Wang, M. & Tang, J., 9 Meh 2017, Yn : Optics Express. t. 13836-13856

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  10. Cyhoeddwyd

    Digital Filter Multiple Access PONs With DSP-Enabled Software Reconfigurability

    Bolea, M., Giddings, R. P., Bouich, M., Aupetit-Berthelemot, C. & Tang, J. M., 2015, Yn : IEEE Journal of Optical Communications and Networking. 7, 4, t. 215-222 8 t.

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  11. Cyhoeddwyd

    Digital Orthogonal Filter-Enabled Optical OFDM Channel Multiplexing for Software-Reconfigurable Elastic PONs

    Tang, J., Bolea, M., Giddings, R. P. & Tang, J. M., 16 Ion 2014, Yn : Journal of Lightwave Technology. 32, 6, t. 1200-1206

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  12. Cyhoeddwyd

    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 Chwef 2012, Yn : IEEE Photonics Journal. 4, 1, t. 143-154

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  13. Cyhoeddwyd

    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, Yn : IEEE Photonics Technology Letters. 23, 1, t. 51-53 3 t.

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  14. Cyhoeddwyd

    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 Ion 2017, Yn : IEEE Journal of Optical Communications and Networking. 9, 1, t. 45-52 7 t.

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  15. Cyhoeddwyd

    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 Medi 2019, Yn : Journal of Lightwave Technology. 37, 17, 14 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  16. Cyhoeddwyd
  17. Cyhoeddwyd

    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 Chwef 2017, Yn : Optics Express. 25, 4, t. 3850-3862 13 t., 270560.

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  18. Cyhoeddwyd

    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 Maw 2010, Yn : Optics Express. 18, 6, t. 5541-5555

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  19. Cyhoeddwyd

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

    Tang, J., Giddings, R. P., Jin, X. Q. & Tang, J. M., 14 Medi 2009, Yn : Optics Express. 17, 19, t. 16654-16665

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  20. Cyhoeddwyd

    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 Awst 2012, Yn : Optics Express. 20, 18, t. 20666-20679

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  21. Cyhoeddwyd

    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 Meh 2011, Yn : IEEE Photonics Journal. 3, 3, t. 500-511

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  22. Cyhoeddwyd

    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 Medi 2017, Yn : Optics Express. 25, 20, t. 24251-24261

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  23. Cyhoeddwyd

    Experimental demonstrations of record high REAM intensity modulator-enabled 19.25Gb/s real-time end-to-end dual-band optical OFDM colorless transmissions over 25km SSMF IMDD systems

    Zhang, Q. W., Hugues-Salas, E., Giddings, R. P., Wang, M. & Tang, J. M., 2013, Yn : Optics Express. 21, 7, t. 9167-9179 13 t.

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  24. Cyhoeddwyd

    First experimental demonstration of 6Gb/s real-time optical OFDM transceivers incorporating channel estimation and variable power loading.

    Tang, J., Giddings, R. P., Jin, X. Q. & Tang, J. M., 1 Hyd 2009, Yn : Optics Express. 17, 22, t. 19727-19738

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  25. Cyhoeddwyd

    First real-time experimental demonstrations of 11.25Gb/s optical OFDMA PONs with adaptive dynamic bandwidth allocation

    Tang, J., Jin, X. Q., Hugues-Salas, E., Giddings, R. P., Wei, J. L., Groenwald, J. & Tang, J. M., 3 Hyd 2011, Yn : Optics Express. 19, 21, t. 20557-20570

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  26. Cyhoeddwyd

    Hybrid DFT-spread OFDM-Digital Filter Multiple Access PONs for Converged 5G Networks

    Dong, Y. X., Jin, W., Giddings, R. P., O'Sullivan, M., Tipper, A., Durrant, T. & Tang, J. M., Gorff 2019, Yn : IEEE Journal of Optical Communications and Networking. 11, 7, t. 347-353

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  27. Cyhoeddwyd

    Hybrid OFDM-Digital Filter Multiple Access PONs

    Dong, Y., Giddings, R. P. & Tang, J., 1 Rhag 2018, Yn : Journal of Lightwave Technology. 36, 23, t. 5640-5649

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  28. Cyhoeddwyd

    Improved Performance Robustness of DSP-Enabled Flexible ROADMs Free from Optical Filters and O-E-O Conversions

    Jin, W., Zhang, C., Duan, X., Kadhum, M. R., Dong, Y. X., Giddings, R. P., Jiang, N., Qiu, K. & Tang, J. M., 1 Awst 2016, Yn : IEEE Journal of Optical Communications and Networking. 8, 8, t. 521-529 9 t.

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  29. Cyhoeddwyd

    Intra-Cavity Chromatic Dispersion Impacts on 10-Gb/s Optical OFDM Transmissions Over 25-km Dual-RSOA-Based Self-Seeded PON Systems

    Tang, J., Deng, M. L., Cao, B. Y., Giddings, R. P., Dong, Y. X., Jiang, N., Nesset, D., Qiu, K. & Tang, J. M., 18 Rhag 2014, Yn : IEEE Photonics Journal. 7, 1

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  30. Cyhoeddwyd

    Multi-Level Subcarrier Index-Power Modulated Optical OFDM with Adaptive Bit Loading for IMDD PON Systems

    Al Halabi, F., Chen, L., Giddings, R., Tang, J. & Hamie, A., 11 Tach 2016, Yn : IEEE Photonics Journal. 99

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  31. Cyhoeddwyd

    Multiple Channel Interference Cancellation of Digital Filter Multiple Access PONs

    Dong, Y., Al-Rawachy, E., Giddings, R. P., Jin, W., Nesset, D. & Tang, J., Ion 2017, Yn : Journal of Lightwave Technology. 35, 1, t. 34-44

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  32. Cyhoeddwyd

    Negative power penalties of optical OFDM signal transmissions in directly modulated DFB laser-based IMDD systems incorporating negative dispersion fibers.

    Tang, J., Zheng, X., Jin, X. Q., Giddings, R. P., Wei, J. L., Hugues-Salas, E., Hong, Y. & Tang, J. M., 1 Awst 2010, Yn : IEEE Photonics Journal. 2, 4, t. 532-542

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  33. Cyhoeddwyd

    Performance Tolerance of IMDD DFMA PONs to Channel Frequency Response Roll-off

    Giddings, R., Duan, X., Mansoor, S. & Tang, J., 1 Hyd 2017, Yn : IEEE Photonics Technology Letters. 29, 19, t. 1655-1658 4 t.

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  34. Cyhoeddwyd

    REAM intensity modulator-enabled 10Gb/s colorless upstream transmission of real-time optical OFDM signals in a single-fiber-based bidirectional PON architecture

    Hugues-Salas, E., Giddings, R. P., Jin, X. Q., Hong, Y., Quinlan, T., Walker, S. & Tang, J. M., 2012, Yn : Optics Express. 20, 19, t. 21089-21100 12 t.

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  35. Cyhoeddwyd

    RSOA Intensity Modulator Frequency Chirp-Enhanced Optical OFDM PON Performance

    Tang, J., Cao, B., Deng, M., Cao, B. Y., Deng, M. L., Zhang, Q. W., Giddings, R. P., Wang, M. & Tang, J. M., 5 Meh 2015, Yn : IEEE Photonics Journal. 7, 3, t. Article Number: 7101711

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  36. Cyhoeddwyd

    Real-Time experimental demonstration of DSP-enabled soft-ROADMs with multi-level flexible add/drop functions for cloud access networks

    Al-Rawachy, E., Giddings, R. & Tang, J., 2 Ion 2019, Yn : Optics Express. 27, 1, t. 16-33

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  37. Cyhoeddwyd

    Real-time Digital Signal Processing for Optical OFDM-Based Future Optical Access Networks

    Giddings, R., 2014, Yn : Journal of Lightwave Technology. 32, 4, t. 553-570 18 t.

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  38. Cyhoeddwyd

    Real-time experimental demonstration of low-cost VCSEL intensity-modulated 11.25Gb/s optical OFDM signal transmission over 25km PON systems

    Hugues-Salas, E., Giddings, R. P., Jin, X. Q., Wei, J. L., Zheng, X., Hong, Y., Shu, C. & Tang, J., 1 Chwef 2011, Yn : Optics Express. 19, 4, t. 2979-2988

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  39. Cyhoeddwyd

    Real-time experimental demonstrations of software reconfigurable optical OFDM transceivers utilizing DSP-based digital orthogonal filters for SDN PONs

    Cao, B., Mansoor, S. P., Tang, J., Duan, X., Giddings, R. P., Bolea, M., Ling, Y., Cao, S., Mansoor, S. & Tang, J. M., 11 Awst 2014, Yn : Optics Express. 22, 16, t. 19674-19685

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  40. Cyhoeddwyd

    Real-time implementation of optical OFDM transmitters and receivers for practical end-to-end optical transmission systems

    Giddings, R. P., Jin, X., Kee, H., Yang, X. & Tang, J., 16 Gorff 2009, Yn : Electronics Letters. 45, 15, t. 800-802

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  41. Cyhoeddwyd

    Real-time transmission of 3Gb/s 16-QAM encoded optical OFDM signals over 75km SMFs with negative power penalties

    Jin, X., Tang, J. & Giddings, R., 17 Awst 2009, Yn : Optics Express. 17, 17, t. 14574-14585

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  42. Cyhoeddwyd

    Record-high and robust 17.125 Gb/s gross-rateover 25 km SSMF transmissions of real-time dual-band optical OFDM signals directly modulated by 1 GHz RSOAs

    Zhang, Q. W., Hugues-Salas, E., Ling, Y., Zhang, H. B., Giddings, R. P., Zhang, J. J., Wang, M. & Tang, J. M., 2014, Yn : Optics Express. 22, 6, t. 6339-6348 10 t.

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  43. Cyhoeddwyd

    Robust and tunable 16.375Gb/s dual-band optical OFDM transmissions over directly modulated VCSEL-based 200m OM2 MMFs

    Tang, J., Deng, M. L., Jiang, N., Duan, X., Giddings, R. P., Yi, X. W., Cao, B. Y., Mansoor, S. P., Qiu, K. & Tang, J. M., 8 Ion 2015, Yn : Optics Express. 23, 1, t. 373-383

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  44. Cyhoeddwyd

    Robust real-time 15.125Gb/s adaptive optical OFDM transmissions over 100m OM2 MMFs utilizing directly modulated VCSELs subject to optical injection locking

    Tang, J., Zhang, H. B., Yi, X. W., Zhang, Q. W., Ling, Y., Deng, M. L., Hugues-Salas, E., Giddings, R. P., Hong, Y. & Tang, J. M., 13 Ion 2014, Yn : Optics Express. 22, 1, t. 1163

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  45. Cyhoeddwyd

    Self-seeding-based 10Gb/s over 25km optical OFDM transmissions utilizing face-to-face dual-RSOAs at gain saturation

    Deng, M., Ling, Y., Chen, X., Giddings, R., Hong, Y., Yi, X. W., Qiu, K. & Tang, J., 19 Mai 2014, Yn : Optics Express. 22, 10, t. 11954-11965

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  46. Cyhoeddwyd

    Semiconductor Optical Amplifier-Enabled Intensity Modulation of Adaptively Modulated Optical OFDM Signals in SMF-Based IMDD Systems

    Wei, J., Hamie, A., Giddings, R. P. & Tang, J., 15 Awst 2009, Yn : Journal of Lightwave Technology. 27, 16, t. 3679-3689

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  47. Cyhoeddwyd

    Significant improvements in optical power budgets of real-time optical OFDM PON systems

    Wei, J. L., Sanchez, C., Giddings, R. P., Hugues-Salas, E. & Tang, J. M., Medi 2010, Yn : Optics Express. 18, 20, t. 20732-20745 14 t.

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  48. Cyhoeddwyd

    Stage-dependent DSP Operation Range Clipping-induced Bit Resolution Reductions of Full Parallel 64-point FFTs Incorporated in FPGA-based Optical OFDM Receivers

    Zhang, J., Tang, Z., Giddings, R., Wu, Q., Wang, W., Cao, B., Zhang, Q. & Tang, J. M., 15 Awst 2016, Yn : Journal of Lightwave Technology. 34, 16, t. 3752-3760

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  49. Cyhoeddwyd

    Stage-dependent minimum bit resolution maps of full-parallel pipelined FFT/IFFT architectures incorporated in real-time optical orthogonal frequency division multiplexing transceivers

    Tang, J., Zhang, J., Yuan, W., Wang, K., Cao, B., Giddings, R. P., Wang, M. & Tang, J. M., 27 Awst 2014, Yn : Journal of Engineering. 2014, t. 1-8

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  50. Cyhoeddwyd

    Subcarrier Grouping-Enabled Improvement in Transmission Performance of Subcarrier Index-Power Modulated Optical OFDM for IM/DD PON Systems

    Al Halabi, F., Chen, L., Giddings, R., Hamie, A. & Tang, J., 15 Hyd 2018, Yn : Journal of Lightwave Technology. 36, 20, t. 4792-4798

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  51. Cyhoeddwyd

    Subcarrier Index-Power Modulated Optical OFDM With Superposition Multiplexing for IMDD Transmission Systems

    Chen, L., Al Halabi, F., Giddings, R. & Tang, J., 12 Tach 2016, Yn : Journal of Lightwave Technology. 34, 22, t. 5284 - 5292

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