Dr Roger Giddings
Senior Lecturer in Optical Communications & DSP

- 2011
- 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. 500-511Research output: Contribution to journal › Article › peer-review
- Published
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 Feb 2011, In: Optics Express. 19, 4, p. 2979-2988Research output: Contribution to journal › Article › peer-review
- 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. 2831-2845Research output: Contribution to journal › Article › peer-review
- 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 journal › Article › peer-review
- Published
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, p. 1-3. 3 p.Research output: Contribution to conference › Paper › peer-review
- Published
First 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 › peer-review
- Published
First 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 › peer-review
- Published
Real-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 › peer-review
- Published
Real-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 › peer-review
- Published
World-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 › peer-review
- 2010
- Published
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., Sept 2010, In: Optics Express. 18, 20, p. 20732-20745 14 p.Research output: Contribution to journal › Article › peer-review
- Published
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 Aug 2010, In: IEEE Photonics Journal. 2, 4, p. 532-542Research output: Contribution to journal › Article › peer-review
- Published
Simple 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 › peer-review
- Published
Wavelength 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 › peer-review
- Published
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 May 2010, In: Optics Express. 18, 10, p. 9791-9808Research output: Contribution to journal › Article › peer-review
- Published
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 Apr 2010, In: Optics Express. 18, 8, p. 8556-8573Research output: Contribution to journal › Article › peer-review
- 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. 5541-5555Research output: Contribution to journal › Article › peer-review
- Published
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, p. 1-3. 3 p.Research output: Contribution to conference › Paper › peer-review
- 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 conference › Paper › peer-review
- 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 conference › Paper › peer-review
- 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 conference › Paper › peer-review
- Published
First 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 › peer-review
- Published
Wavelength 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 › peer-review
- 2009
- Published
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 Oct 2009, In: Optics Express. 17, 22, p. 19727-19738Research output: Contribution to journal › Article › peer-review
- 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. 16654-16665Research output: Contribution to journal › Article › peer-review
- Published
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 Aug 2009, In: Optics Express. 17, 17, p. 14574-14585Research output: Contribution to journal › Article › peer-review
- Published
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 Aug 2009, In: Journal of Lightwave Technology. 27, 16, p. 3679-3689Research output: Contribution to journal › Article › peer-review
- Published
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 Jul 2009, In: Electronics Letters. 45, 15, p. 800-802Research output: Contribution to journal › Article › peer-review
- Published
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 May 2009, In: Optics Express. 17, 11, p. 9012-9027Research output: Contribution to journal › Article › peer-review
- Published
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 Jan 2009.Research output: Contribution to conference › Paper
- Published
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, p. 1-2. 2 p.Research output: Contribution to conference › Paper › peer-review
- Published
First 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 › peer-review
- Published
Input/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 › peer-review
- Published
SOA 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 › peer-review