Dr Roger Giddings

Senior Lecturer in Optical Communications & DSP

  1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
  2. Cyhoeddwyd

    Real-Time Demonstration of Concurrent Upstream and Inter-ONU Communications in Hybrid OFDM DFMA PONs

    Giddings, R., Tyagi, T. & Tang, J., 1 Chwef 2023, Yn: IEEE Photonics Technology Letters. 35, 3, t. 148 - 151 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. 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., 7 Ion 2019, Yn: Optics Express. 27, 1, t. 16-33

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. 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.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Real-time experimental demonstration of a computationally efficient hybrid OFDM DFMA PON

    Giddings, R., Tyagi, T. & Tang, J., Rhag 2022, Yn: Optical Fiber Technology. 74, 26 t., 103106.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. 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.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    Rectangular Orthogonal Digital Filter Banks Based on Extended Gaussian Functions

    Jin, W., Zhong, Z., Jiang, S., He, J., Chang, D., Hong, Y., Giddings, R., Jin, X., O'Sullivan, M., Durrant, T., Trewem, J., Mariani, G. & Tang, J., 15 Meh 2022, Yn: Journal of Lightwave Technology. 40, 12, t. 3709-3722

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. 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.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  20. 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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    Subcarrier Index-Power Modulated Optical OFDM and Its Performance in IMDD PON Systems

    Halabi, F., Chen, L., Parre, S., Barthomeuf, S., Giddings, R. P., Aupetit-Berthelemot, C., Hamie, A. & Tang, J. M., 1 Mai 2016, Yn: Journal of Lightwave Technology. 34, 9, t. 2228-2234 7 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    Subcarrier Index-Power Modulated-Optical OFDM with Dual Superposition Multiplexing for Directly Modulated DFB-based IMDD PON Systems

    Chen, L., Halabi, F., Giddings, R. P., Zhang, J. & Tang, J., Rhag 2018, Yn: IEEE Photonics Journal. 10, 6, 7908113.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    Subcarrier index-power modulated optical OFDM with dual superposition multiplexing for IMDD PON systems

    Halabi, F., Chen, L., Giddings, R. P., Hamie, A., Dumas, Y., Freyssinet, P., Aupetit-Berthelemot, C. & Tang, J. M., 15 Chwef 2019, Yn: Optics Communications. 433, t. 190-194

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    Timing Jitter Analysis and Mitigation in Hybrid OFDM-DFMA PONs

    Giddings, R., Gonem, O. & Tang, J., Rhag 2021, Yn: IEEE Photonics Journal. 13, 6, 13 t., 7200313.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    Upstream Power Budgets of IMDD Optical OFDMA PONs Incorporating RSOA Intensity Modulator-Based Colorless ONUs

    Jin, X. Q., Groenewald, J., Hugues-Salas, E., Giddings, R. P. & Tang, J. M., 2013, Yn: Journal of Lightwave Technology. 31, 12, t. 1914-1920 7 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  26. Cyhoeddwyd

    Wavelength reused bidirectional transmission of adaptively modulated optical OFDM signals in WDM-PONs incorporating SOA and RSOA intensity modulators.

    Tang, J., Wei, J. L., Hugues-Salas, E., Giddings, R. P., Jin, X. Q., Zheng, X., Mansoor, S. P. & Tang, J. M., 10 Mai 2010, Yn: Optics Express. 18, 10, t. 9791-9808

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyfraniad i Gynhadledd › Ymchwil › Adolygwyd gan gymheiriaid
  28. Cyhoeddwyd

    112-Gb/s PAM-4 IM/DD Optical Transmission over 100-km Single Mode Fiber with Linear Equalizer

    Hu, S., Zhang, J., Tang, J., Liu, Q., Jin, W., Zhong, Z., Giddings, R., Shao, J., Jin, T., Zhao, X., Xu, B., Gao, X. & Qiu, K., 13 Ebr 2022, 2022 Optical Fiber Communications Conference and Exhibition (OFC). IEEE

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  29. Cyhoeddwyd

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

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

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  30. Cyhoeddwyd

    First Experimental Demonstration of Real-Time End-to-End Multi-Band 25.25Gb/s Optical OFDM Transmission over 300m OM2 MMFs Employing 4GS/s DACs/ADCs

    Giddings, R. P., Hugues-Salas, E., Zhang, Q. W. & Tang, J. M., 2013, Asia Communications and Photonics Conference 2013. AF1F.4

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  31. Cyhoeddwyd

    First experimental demonstration of real-time adaptive transmission of 20Gb/s dual-band optical OFDM signals over 500m OM2 MMFs

    Hugues-Salas, E., Giddings, R. P. & Tang, J. M., 2013, Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013. t. 1-3 3 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  32. Cyhoeddwyd

    Record-high and robust capacity versus reach performance of adaptive real-time dual-band optical OFDM signals for upgrading legacy MMF systems

    Hugues-Salas, E., Zhang, Q. W., Giddings, R. P., Wang, M. & Tang, J. M., 2013, Future Network and Mobile Summit (FutureNetworkSummit), 2013. t. 1-10 10 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Tutorial: Real-time digital signal processing for future optical access networks

    Giddings, R., 2013, Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013. t. 1-116 116 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  34. Papur › Ymchwil › Heb ei adolygu gan gymheiriaid
  35. Cyhoeddwyd

    17.125Gb/s over 25km transmissions of real-time dual-band optical OFDM signals modulated by 1GHz RSOAs

    Lin, L. Y., Giddings, R. P., Tang, J., Zhang, Q., Salas, E. H., Ling, Y., Zhang, H., Giddings, R. & Wang, M., 9 Maw 2014.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  36. Cyhoeddwyd

    Digital Orthogonal Filtered Optical OFDM for Elastic PONs

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

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  37. Cyhoeddwyd

    IFFT Stage-dependent Minimum Bit Resolution Maps for Real-time Optical OFDM Transceivers

    Zhang, J., Giddings, R. P., Tang, J., Zhang, Q., Yuan, W., Giddings, R. & Wang, M., 9 Maw 2014.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  38. Cyhoeddwyd

    Intra-Cavity Dispersion-Induced Performance Degradations of Dual-RSOA-Based Self-Seeded PON Systems

    Tang, J., Giddings, R. P., Tang, J. M., Deng, M., Cao, B., Giddings, R., Dong, Y., Jian, N., Nesset, D. & Qiu, K., 22 Maw 2015.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  39. Cyhoeddwyd

    New ROADMs with DSP-Enabled Dynamic and Flexible Operations for Elastic Optical Networks

    Tang, J., Giddings, R. P., Tang, J. M., Jin, W., Duan, X., Bolea, M., Giddings, R., Jiang, N., Zhang, C. & Qiu, K., 22 Maw 2015.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  40. Cyhoeddwyd

    RSOA Intensity Modulator Frequency Chirp-Enabled 40Gb/s over 25km IMDD PON Systems

    Tang, J., Giddings, R. P., Tang, J. M., Cao, B., Deng, M., Giddings, R., Duan, X., Zhang, Q. & Wang, M., 22 Maw 2015.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  41. Cyhoeddwyd

    Real-Time 3Gb/s 16QAM-Encoded Optical OFDM Transmission over 75km MetroCor SMFs with Negative Power Penalties.

    Jin, X. Q., Giddings, R. P., Tang, J. M. & Shore, K. A., 1 Ion 2009.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  42. Papur › Ymchwil › Adolygwyd gan gymheiriaid
  43. Cyhoeddwyd

    30Gb/s real-time triple sub-band OFDM transceivers for future PONs beyond 10Gb/s/λ

    Giddings, R. P., Hugues-Salas, E. & Tang, J. M., 2013, t. 1-3. 3 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  44. Cyhoeddwyd

    A point-to-multipoint flexible transceiver for inherently hub-and-spoke optical access networks

    Chen, L., Jin, W., He, J., Giddings, R., Huang, Y. & Tang, J., Gorff 2023.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  45. Cyhoeddwyd

    Colourless real-time optical OFDM end-to-end transmission at 7.5Gb/s over 25km SSMF using 1GHz RSOAs for WDM-PONs

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

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  46. Cyhoeddwyd

    DSP-based Reduction of the Impact of White ADC Timing Jitter on Hybrid OFDM-DFMA PONs

    Gonem, O., Giddings, R. & Tang, J., 26 Gorff 2021. 2 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  47. Cyhoeddwyd

    Demonstration of real-time multi-gigabit optical OFDM modems for access networks

    Giddings, R. P., Jin, X. Q., Yang, X. L. & Tang, J. M., 2009, t. 1-2. 2 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  48. Cyhoeddwyd

    Dependence of upstream power budget on the number of ONUs in IMDD optical OFDMA PONs

    Jin, X. Q., Groenewald, J., Hugues-Salas, E., Giddings, R. P. & Tang, J. M., 2013, t. 1-3. 3 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  49. Cyhoeddwyd

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

    Giddings, R., Gonem, O. & Tang, J., Gorff 2023, t. 1-6. 6 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  50. Cyhoeddwyd

    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, t. 1-3. 3 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  51. Cyhoeddwyd

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

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

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  52. Cyhoeddwyd

    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 Maw 2016.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  53. Cyhoeddwyd

    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 Meh 2021.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  54. Cyhoeddwyd

    Experimental demonstration of adaptive bit and/or power loading for maximising real-time end-to-end optical OFDM transmission performance

    Jin, X. Q., Giddings, R. P. & Tang, J. M., 2011, t. 1-3. 3 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid