Dr Roger Giddings received his BEng (Hons) degree in Engineering Science and Technology from Loughborough University in 1989. He was awarded a PhD degree in Optical Communications in January 2012 from Bangor University.

In 1990 he joined Nokia Networks UK where he worked as a HW Design Engineer and Senior HW Design Engineer in the Advanced Primary Multiplexers Group & SDH Products Group. In 1998 he moved to Finland to continue working for Nokia Networks, in the SDH Access Products group where he worked on the HW development of Nokia’s first Optical Fiber Amplifier products. In 2000 he moved to Nokia’s Research Center as a Senior Research Engineer in the Computing Architectures Laboratory where he worked on various projects including Nokia’s first demonstration 3GPP system and designing and prototyping new product innovations for Nokia’s Business Units. In 2004 he joined the Nokia Emerging Business Unit as a Senior Hardware Specialist where he was the chief HW architect and designer for novel concepts in portable multimedia and personal communication consumer devices.

In 2007 he returned to the UK and joined the Optical Communications Research group at the School of Electronic Engineering, Bangor University, working  as an Experimental Researcher and studying for his PhD degree in the area of high speed optical communication systems for next generation optical networks. He successfully implemented an experimental system to demonstrate real-time DSP-based Optical OFDM transmission which was the world’s first Optical OFDM system capable of real-time end-to-end transmission at >10Gb/s. This work was part of the European-funded project ALPHA www.ict-alpha.eu.

In 2012 has was awarded a lectureship and was promoted to senior lecturer in 2016, he continues to research DSP-enabled optical communication systems to achieve dynamically reconfigurable optical networks that seemlessly converge traditional metro, access and 4G/5G mobile fronthaul/backhaul.

During his research at Bangor he has (co)authored more than 100 papers published in refereed professional journals and international conferences. He also acts as a reviewer for several leading journals, has acted as program chair and a TPC member for the SPPCom conference and was recently guest editor for a special issue of the Future Internet journal. http://www.mdpi.com/journal/futureinternet/special_issues/DSP_Optical

Module IED-1051 Electronics Laboratory Level 1

Module IED-1052 Music Technology Laboratory Level 1

Module ICM-2008 Communications Systems

Module ICM4137 Broadband Communications

Supervision of Undergraduate/MSc projects and PhD degrees

Digital signal processing (DSP) has recently emerged as a highly promising technology for meeting the high demands placed on future optical networks such as high capacity, cost-efficiency, green networks and highly flexible networks. This research area is focused on the application of DSP in optical communications to solve the future network challenges. Our world-leading real-time DSP-based optical communications test bed will be fully utilised to explore areas such as: advanced modulation techniques for escalating the data capacity of a single optical wavelength, driving the improvement in power efficiency at both the optical transceiver and network level and enhancing optical network resource utilisation through network aware intelligent optical transceivers.

2020

• PublishedA Clock-gating-based Energy-efficient Scheme for ONUs in Real-time IMDD OFDM-PONs
  Zhang, J., Zhao, J., Huang, H., Ye, N., Giddings, R., Li, Z., Qin, D., Zhang, Q. & Tang, J., 15 Jul 2020, In : Journal of Lightwave Technology. 38, 14, p. 3573-3583
  Research output: Contribution to journal › Article
• PublishedExperimental 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 journal › Article
• PublishedHybrid OFDM-Digital Filter Multiple Access PONs Utilizing Spectrally Overlapped Digital Orthogonal Filtering
  Sankoh, A., Jin, W., Zhong, Z., He, J., Hong, Y., Giddings, R., Pierce, I., O'Sullivan, M., Lee, J., Durrant, T. & Tang, J., Oct 2020, In : IEEE Photonics Journal. 12, 5, 10 p., 7905311.
  Research output: Contribution to journal › Article
• PublishedHybrid SSB OFDM-Digital Filter Multiple Access PONs
  Jin, W., Sankoh, A., Dong, Y., Giddings, R., O'Sullivan, M., Durrant, T., Lee, J. & Tang, J., 15 Apr 2020, In : Journal of Lightwave Technology. 38, 8, p. 2095 - 2105
  Research output: Contribution to journal › Article

2019

• PublishedExperimental 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 Sep 2019, In : Journal of Lightwave Technology. 37, 17, p. 4315-4329 14 p.
  Research output: Contribution to journal › Article
• PublishedHybrid 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., Jul 2019, In : IEEE Journal of Optical Communications and Networking. 11, 7, p. 347-353
  Research output: Contribution to journal › Article
• PublishedReal-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 Jan 2019, In : Optics Express. 27, 1, p. 16-33
  Research output: Contribution to journal › Article
• PublishedSubcarrier 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 Feb 2019, In : Optics Communications. 433, p. 190-194
  Research output: Contribution to journal › Article

2018

• PublishedAnalytical 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 Nov 2018, In : Journal of Lightwave Technology. 36, 22, p. 5177-5187
  Research output: Contribution to journal › Article
• PublishedHybrid OFDM-Digital Filter Multiple Access PONs
  Dong, Y., Giddings, R. P. & Tang, J., 1 Dec 2018, In : Journal of Lightwave Technology. 36, 23, p. 5640-5649
  Research output: Contribution to journal › Article
• PublishedSubcarrier 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 Oct 2018, In : Journal of Lightwave Technology. 36, 20, p. 4792-4798
  Research output: Contribution to journal › Article
• PublishedSubcarrier 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., Dec 2018, In : IEEE Photonics Journal. 10, 6, 7908113.
  Research output: Contribution to journal › Article

2017

• PublishedDSP-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 Jun 2017, In : Optics Express. p. 13836-13856
  Research output: Contribution to journal › Article
• PublishedExperimental 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 journal › Article
• PublishedExperimental 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 journal › Article
• PublishedExperimental 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 Sep 2017, In : Optics Express. 25, 20, p. 24251-24261
  Research output: Contribution to journal › Article
• PublishedMultiple Channel Interference Cancellation of Digital Filter Multiple Access PONs
  Dong, Y., Al-Rawachy, E., Giddings, R. P., Jin, W., Nesset, D. & Tang, J., Jan 2017, In : Journal of Lightwave Technology. 35, 1, p. 34-44
  Research output: Contribution to journal › Article
• PublishedPerformance Tolerance of IMDD DFMA PONs to Channel Frequency Response Roll-off
  Giddings, R., Duan, X., Mansoor, S. & Tang, J., 1 Oct 2017, In : IEEE Photonics Technology Letters. 29, 19, p. 1655-1658 4 p.
  Research output: Contribution to journal › Article

2016

• PublishedExperimental 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 conference › Paper
• PublishedExperimental 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 conference › Paper
• PublishedImproved 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 Aug 2016, In : IEEE Journal of Optical Communications and Networking. 8, 8, p. 521-529 9 p.
  Research output: Contribution to journal › Article
• PublishedMulti-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 Nov 2016, In : IEEE Photonics Journal. 99
  Research output: Contribution to journal › Article
• PublishedStage-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 Aug 2016, In : Journal of Lightwave Technology. 34, 16, p. 3752-3760
  Research output: Contribution to journal › Article
• PublishedSubcarrier Index-Power Modulated Optical OFDM (SIPM-OOFDM) for IMDD PON Systems
  Tang, J., Halabi, F., Chen, L., Parre, S., Barthomeuf, S., Giddings, R. P. & Aupetit-Berthelemot, C., 22 Jul 2016.
  Research output: Contribution to conference › Paper
• PublishedSubcarrier Index-Power Modulated Optical OFDM With Superposition Multiplexing for IMDD Transmission Systems
  Chen, L., Al Halabi, F., Giddings, R. & Tang, J., 12 Nov 2016, In : Journal of Lightwave Technology. 34, 22, p. 5284 - 5292
  Research output: Contribution to journal › Article
• PublishedSubcarrier 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 May 2016, In : Journal of Lightwave Technology. 34, 9, p. 2228-2234 7 p.
  Research output: Contribution to journal › Article
• PublishedTechnical and Market Feasibility of High-Speed Software-Reconfigurable OOFDM/DFMA-based Optical Transceiversfor Next Generation Access Network PONs
  Dorward, R. M., Anderson, M. J. & Giddings, R. P., 25 Aug 2016.
  Research output: Contribution to conference › Paper

2015

• PublishedDSP-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 Aug 2015, In : Journal of Lightwave Technology. 33, 19, p. 4124-4131
  Research output: Contribution to journal › Article
• PublishedDigital Filter Multiple Access PONs With DSP-Enabled Software Reconfigurability
  Bolea, M., Giddings, R. P., Bouich, M., Aupetit-Berthelemot, C. & Tang, J. M., 2015, In : IEEE Journal of Optical Communications and Networking. 7, 4, p. 215-222 8 p.
  Research output: Contribution to journal › Article
• PublishedIntra-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 Mar 2015.
  Research output: Contribution to conference › Paper
• PublishedNew 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 Mar 2015.
  Research output: Contribution to conference › Paper
• PublishedRSOA 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 Mar 2015.
  Research output: Contribution to conference › Paper
• PublishedRSOA 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., 5 Jun 2015, In : IEEE Photonics Journal. 7, 3, p. Article Number: 7101711
  Research output: Contribution to journal › Article
• PublishedRobust 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 Jan 2015, In : Optics Express. 23, 1, p. 373-383
  Research output: Contribution to journal › Article

2014

• Published13.625 Gb/s real-time dual-band adaptive optical orthogonal frequency division multiplexing transmissions over 25 km standard single-mode fibre intensity modulation and direct detection systems utilising strongly saturated reflective semiconductor optical amplifier intensity modulators
  Tang, J., Zhang, Q., Hugues-Salas, E., Giddings, R. P., Zhang, J., Wang, M. & Tang, J. M., 1 Oct 2014, In : IET Optoelectronics. 8, 5, p. 175-180
  Research output: Contribution to journal › Article
• Published17.125Gb/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 Mar 2014.
  Research output: Contribution to conference › Paper
• PublishedDigital Orthogonal Filter-Enabled Optical OFDM Channel Multiplexing for Software-Reconfigurable Elastic PONs
  Tang, J., Bolea, M., Giddings, R. P. & Tang, J. M., 16 Jan 2014, In : Journal of Lightwave Technology. 32, 6, p. 1200-1206
  Research output: Contribution to journal › Article
• PublishedDigital 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 conference › Paper
• PublishedIFFT 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 Mar 2014.
  Research output: Contribution to conference › Paper
• PublishedIntra-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 Dec 2014, In : IEEE Photonics Journal. 7, 1
  Research output: Contribution to journal › Article
• PublishedReal-time Digital Signal Processing for Optical OFDM-Based Future Optical Access Networks
  Giddings, R., 2014, In : Journal of Lightwave Technology. 32, 4, p. 553-570 18 p.
  Research output: Contribution to journal › Article
• PublishedReal-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 Aug 2014, In : Optics Express. 22, 16, p. 19674-19685
  Research output: Contribution to journal › Article
• PublishedRecord-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, In : Optics Express. 22, 6, p. 6339-6348 10 p.
  Research output: Contribution to journal › Article
• PublishedRobust 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 Jan 2014, In : Optics Express. 22, 1, p. 1163
  Research output: Contribution to journal › Article
• PublishedSelf-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 May 2014, In : Optics Express. 22, 10, p. 11954-11965
  Research output: Contribution to journal › Article
• PublishedStage-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 Aug 2014, In : Journal of Engineering. 2014, p. 1-8
  Research output: Contribution to journal › Article

2013

• Published25.25-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, In : IEEE Photonics Technology Letters. 25, 21, p. 2123-2125 3 p.
  Research output: Contribution to journal › Article
• Published30Gb/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, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedAdaptability-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, In : IEEE Journal of Optical Communications and Networking. 5, 10, A1-A11.
  Research output: Contribution to journal › Article
• PublishedDependence 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, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedEnd-to-end real-time DSP for high-speed optical access/metro links
  Giddings, R. P. & Tang, J. M., 16 Sep 2013, 18th OptoElectronics and Communications Conference . p. 1-2 2 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
• PublishedExperimental 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, In : Optics Express. 21, 7, p. 9167-9179 13 p.
  Research output: Contribution to journal › Article
• PublishedFirst 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
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
• PublishedFirst 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. p. 1-3 3 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
• PublishedRecord-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. p. 1-10 10 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
• PublishedTutorial: 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. p. 1-116 116 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
• PublishedUpstream 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, In : Journal of Lightwave Technology. 31, 12, p. 1914-1920 7 p.
  Research output: Contribution to journal › Article

2012

• PublishedDirectly 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 journal › Article
• PublishedExperimental 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 journal › Article
• PublishedFirst experimental demonstration of real-time dual-band optical OFDM transmission at 17.5Gb/s over an EML-based 25km SSMF IMDD system using 4GS/s DAC/ADCs
  Giddings, R. P., Hugues-Salas, E., Ben-Ezra, S. & Tang, J. M., 2012, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedImproved power budgets of end-to-end real-time optical OFDM PON systems using wavelength-offset optical filtering
  Wei, J. L., Hugues-Salas, E., C, S., [No Value], XE., [Unknown], N., Jin, X. Q., Giddings, R. P., Pierce, I., Ortega, B., Shu, C. & Tang, J. M., 2012, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedREAM 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, In : Optics Express. 20, 19, p. 21089-21100 12 p.
  Research output: Contribution to journal › Article
• PublishedREAM intensity modulator-enabled colorless transmission of real-time optical OFDM signals for WDM-PONs
  Hugues-Salas, E., Giddings, R. P., Jin, X. Q., Quinlan, T., Hong, Y., Walker, S. & Tang, J. M., 2012, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedReal-time 11.25Gb/s optical OFDM signal transmission over 2000m legacy MMFs using centre launching
  Hugues-Salas, E., Jin, X. Q., Giddings, R. P., Hong, Y., Mansoor, S., Villafranca, A. & Tang, J. M., 2012, p. 1-8. 8 p.
  Research output: Contribution to conference › Paper
• PublishedReal-time 11.25Gb/s optical OFDM transmission over 2000m legacy MMFs utilizing directly modulated VCSELs
  Hugues-Salas, E., Courjault, N., Jin, X. Q., Giddings, R. P., Aupetit-Berthelemot, C. & Tang, J. M., 2012, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedReal-time optical OFDM and colorless OOFDMA PONs
  Tang, J. M., Giddings, R. P., Hugues-Salas, E. & Hong, Y., 2012, p. 1. 1 p.
  Research output: Contribution to conference › Paper
• PublishedWavelength-offset optical filtering induced power budget improvements in end-to-end real-time optical OFDM PON systems
  Wei, J. L., Hugues-Salas, E., Jin, X. Q., Giddings, R. P., Pierce, I., Ortega, B. & Tang, J. M., 2012, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper

2011

• PublishedExperimental 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 journal › Article
• PublishedExperimental 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 journal › Article
• PublishedExperimental 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, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedExperimental 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 journal › Article
• PublishedFirst experimental demonstration of VCSEL-based realtime end-to-end 11.25Gb/s optical OFDM signal transmission over 800m MMFs
  Hugues-Salas, E., Jin, X. Q., Giddings, R. P., Wei, J. L., Shu, C. & Tang, J. M., 2011, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedFirst experimental demonstration of low-cost VCSEL-intensity modulated end-to-end real-time optical OFDM signal transmission at 11.25Gb/s over 25km SSMFs
  Hugues-Salas, E., Giddings, R. P., Hong, Y., Jin, X. Q., Wei, J. L., Zheng, X. & Tang, J. M., 2011, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedFirst 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 Oct 2011, In : Optics Express. 19, 21, p. 20557-20570
  Research output: Contribution to journal › Article
• PublishedReal-time experimental demonstration of a versatile optical OFDM symbol synchronisation technique using low-power DC offset signalling
  Giddings, R. P. & Tang, J. M., 2011, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedReal-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 Feb 2011, In : Optics Express. 19, 4, p. 2979-2988
  Research output: Contribution to journal › Article
• PublishedReal-time optical OFDM transceivers for PON applications
  Tang, J. M., Giddings, R. P., Jin, X. Q., Wei, J. L., Zheng, X., Giacoumidis, E., Hugues-Salas, E., Hong, Y., Shu, C., Groenewald, J. & Muthusamy, K., 2011, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedWorld-first experimental demonstration of synchronous clock recovery in an 11.25Gb/s real-time end-to-end optical OFDM system using directly modulated DFBs
  Giddings, R. P. & Tang, J. M., 2011, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper

2010

• PublishedAdaptively 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 Apr 2010, In : Optics Express. 18, 8, p. 8556-8573
  Research output: Contribution to journal › Article
• PublishedColourless 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, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedEnd-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 conference › Paper
• PublishedExperimental 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 journal › Article
• PublishedExperimental 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 conference › Paper
• PublishedExperimental 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 conference › Paper
• PublishedFirst experimental demonstration of end-to-end real-time optical OFDM symbol synchronization using subtraction and Gaussian windowing in 25km SMF IMDD systems
  Jin, X. Q., Giddings, R. P., Hugues-Salas, E. & Tang, J. M., 2010, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedNegative 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 Aug 2010, In : IEEE Photonics Journal. 2, 4, p. 532-542
  Research output: Contribution to journal › Article
• PublishedSignificant 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., Sep 2010, In : Optics Express. 18, 20, p. 20732-20745 14 p.
  Research output: Contribution to journal › Article
• PublishedSimple adaptively modulated optical OFDM modems using subcarrier modulation with input/output reconfigurability
  Zheng, X., Wei, J. L., Giddings, R. P. & Tang, J. M., Jun 2010, p. 1-8. 8 p.
  Research output: Contribution to conference › Paper
• PublishedWavelength reused bidirectional adaptively modulated optical OFDM transmission in colourless WDM-PONs
  Wei, J. L., Hugues-Salas, E., Giddings, R. P., Jin, X. Q., Zheng, X. & Tang, J. M., 2010, p. 1-3. 3 p.
  Research output: Contribution to conference › Paper
• PublishedWavelength reused bidirectional transmission of adaptively modulated optical OFDM signals in SOA/RSOA intensity modulator-based WDM-PONs
  Wei, J. L., Hugues-Salas, E., Giddings, R. P., Jin, X. Q., Zheng, X. & Tang, J. M., Jun 2010, p. 1-9. 9 p.
  Research output: Contribution to conference › Paper
• PublishedWavelength 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 May 2010, In : Optics Express. 18, 10, p. 9791-9808
  Research output: Contribution to journal › Article

2009

• PublishedColourless 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 May 2009, In : Optics Express. 17, 11, p. 9012-9027
  Research output: Contribution to journal › Article
• PublishedDemonstration of real-time multi-gigabit optical OFDM modems for access networks
  Giddings, R. P., Jin, X. Q., Yang, X. L. & Tang, J. M., 2009, p. 1-2. 2 p.
  Research output: Contribution to conference › Paper
• PublishedExperimental demonstration of real-time 3Gb/s optical OFDM transceivers.
  Tang, J., Giddings, R. P., Jin, X. Q. & Tang, J. M., 14 Sep 2009, In : Optics Express. 17, 19, p. 16654-16665
  Research output: Contribution to journal › Article
• PublishedFirst 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 Oct 2009, In : Optics Express. 17, 22, p. 19727-19738
  Research output: Contribution to journal › Article
• PublishedFirst experimental demonstration of real-time optical OFDM transceivers
  Giddings, R. P., Jin, X. Q., Kee, H. H., Yang, X. L. & Tang, J. M., 2009, p. 1-2. 2 p.
  Research output: Contribution to conference › Paper
• PublishedInput/output reconfigurable adaptively modulated optical OFDM modems using subcarrier modulation
  Zheng, X., Wei, J. L., Yang, X. L., Giddings, R. P., Tang, J. M. & Shore, K. A., 2009, p. 1-2. 2 p.
  Research output: Contribution to conference › Paper
• PublishedReal-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 Jan 2009.
  Research output: Contribution to conference › Paper
• PublishedReal-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 Jul 2009, In : Electronics Letters. 45, 15, p. 800-802
  Research output: Contribution to journal › Article
• PublishedReal-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 Aug 2009, In : Optics Express. 17, 17, p. 14574-14585
  Research output: Contribution to journal › Article
• PublishedSOA intensity modulator-enabled colourless transmission of adaptively modulated optical OFDM signals for WDM-PONs
  Wei, J. L., Yang, X. L., Giddings, R. P., Tang, J. M. & Shore, K. A., 2009, p. 1-2. 2 p.
  Research output: Contribution to conference › Paper
• PublishedSemiconductor 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 Aug 2009, In : Journal of Lightwave Technology. 27, 16, p. 3679-3689
  Research output: Contribution to journal › Article

2018

• Invited Talk- DSP-enabled Cloud Access Networks

  5th International Conference on Signal Processing and Integrated Networks

  Department of Electronics and Communication Engineering

  ASET, Amity University ,Noida, Sec-125, Delhi-NCR, India.

  22 Feb 2018 – 23 Feb 2018

  Links:

  • http://www.amity.edu/spin2018/invited_talks.asp
  Activity: Invited talk (Speaker)

2017

• Future Internet (Journal)

  Guest editor for special issue "Recent advances in DSP-based Optical Communications".

  2017 →

  Links:

  • http://www.mdpi.com/journal/futureinternet/special_issues/DSP_Optical
  Activity: Editorial activity (Guest editor)

2015

• Signal Processing in Photonics Communications (SPPCom)

  Program Chair for SPPCom 2015

  27 Jun 2015

  Links:

  • https://www.osa.org/en-us/meetings/osa_meeting_archives/2015/signal_processing_in_photonics_communications/#committee
  Activity: Participation in conference (Member of programme committee)