• Papers in international journals (15/4)

15. F. P. Guiomar, S. B. Amado, R. M. Ferreira, J. D. Reis, S. M. Rossi, A. Chiuchiarelli, J. R. F. Oliveira, A. L. Teixeira, A. N. Pinto, ''Multi-Carrier Digital Backpropagation for 400G Optical Superchannels,'' IEEE/OSA Journal of Lightwave Technology, Vol. 34, No. 8, pp.1896-1907, March 2016, (Invited Paper).(download)
14. S. B. Amado, F. P. Guiomar, N. J. Muga, R. M. Ferreira, J. D. Reis, S. M. Rossi, A. Chiuchiarelli, J.R.F. Oliveira, A. L. Teixeira, A.N. Pinto, ''Low Complexity Advanced DBP Algorithms for Ultra-Long-Haul 400G Transmission Systems,'' IEEE/OSA Journal of Lightwave Technology, Vol. 34, No. 8, pp.1793-1799, March 2016, (Invited Paper).(download)
13. S. Ziaie, N .J. Muga, F. P. Guiomar, G. M. Fernandes, R. M. Ferreira, A. Shahpari, A. L. Teixeira, A. N. Pinto, ''Experimental Assessment of the Adaptive Stokes Space-Based Polarization Demultiplexing for Optical Metro and Access Networks,'' IEEE/OSA Journal of Lightwave Technology, Vol. 33, No. 23, pp. 4968 - 4974, December 2015. (download)
12. N. J. Muga , A. N. Pinto, ''Extended Kalman Filter vs. Geometrical Approach for Stokes Space Based Polarization Demultiplexing ,'' IEEE/OSA Journal of Lightwave Technology , Vol. 33 , No. 23 , pp. 4826 - 4833 , December, 2015. (download)
11. G. M. Fernandes, N. J. Muga, A. M. Rocha, A. N. Pinto, ''Switching in Multicore Fibers Using Flexural Acoustic Waves,'' Optics Express, Vol. 23, No. 20, pp. 26313-26325, October, 2015. (download)
10. G. M. Fernandes, N. J. Muga, A. N. Pinto, ''Four-Wave Mixing in Microwires to All-Optical Signal Processing in Mode-Division Multiplexing Systems,'' Fiber and Integrated Optics, Vol. 34, No. 1-2, pp. 38-52, DOI: 10.1080/01468030.2015.1060276, 2015. (download)
9. F. P. Guiomar, S. B. Amado, C. M. Martins, A. N. Pinto, ''Time Domain Volterra-Based Digital Backpropagation for Coherent Optical Systems,'' IEEE/OSA Journal of Lightwave Technology, Vol. 33, No. 15, pp. 3170 - 3181, DOI: 10.1109/JLT.2015.2435520, August, 2015. (download)
8. S. Routray, G. Sahin, R. F. Rocha, A. N. Pinto, ''Statistical Analysis and Modeling of Shortest Path Lengths in Optical Transport Networks,'' IEEE/OSA Journal of Lightwave Technology, Vol. 33 , No. 13, pp. 1 - 11, DOI: 10.1109/JLT.2015.2413674, July, 2015. (download)
7. F. P. Guiomar, S. B. Amado, A. Carena, G. Bosco, A. Nespola, A. L. Teixeira, A. N. Pinto, ''Fully Blind Linear and Nonlinear Equalization for 100G PM-64QAM Optical Systems,'' IEEE/OSA Journal of Lightwave Technology, Vol. 33, No. 7, pp. 1265-1274, April 1, 2015. (download)
6. J. M. Ferreira, D. Fonseca, P. P. Monteiro, A. N. Pinto, and L. Rapp, ''Site-Dependent Pumping Effect on Two-Level EDFAs,'' IEEE/OSA Journal of Lightwave Technology, VOL. 33, NO. 2, January, 2015. (download)
5. Gil M. Fernandes, Nelson J. Muga, Armando N. Pinto, ''Tunable Mode Conversion Using Acoustic Waves in Optical Microwires,'' IEEE/OSA Journal of Lightwave Technology, Vol. 32, No. 19, pp. 3257-3265, October, 2014.(download)
4. N. J. Muga, and A. N. Pinto, ''Adaptive 3D Stokes Space Based Polarization Demultiplexing Algorithm,'' IEEE/OSA Journal of Lightwave Technology, 2014. (DOI: 10.1109/JLT.2014.2340732). (download)
3. S. K. Routray, G. Sahin, J. R. Ferreira da Rocha, and A. N. Pinto, ''Estimation of Link-Dependent Parameters in Optical Transport Networks from Statistical Models,'' IEEE/OSA Journal of Optical Communications and Networking (JOCN), 2014. (download)
2. N. J. Muga, and A. N. Pinto, ''Digital PDL Compensation in 3D Stokes Space,'' IEEE/OSA Journal of Lightwave Technology, vol. 31, no. 13, pp. 2122--2130, 2013. (download)
1. F. P. Guiomar and A. N. Pinto, ''Simplified Volterra Series Nonlinear Equalized for Polarization-Multiplexed Coherent Optical Systems,'' IEEE/OSA Journal of Lightwave Technology, vol. 31, no. 23, pp. 3879-3891, 2013. (download)

• Papers in national journals (0/2)

• Communications in international scientific meetings (20/4)

20. F. P. Guiomar, S. B. Amado, C. S. Martins, A. N. Pinto, ''Digital Equalization of Nonlinear Fiber Impairments in Coherent Optical Transmission Systems,'' IONS 2015 - International OSA Network of Students, Valencia, Spain, September 24-26, 2015. (download)
19. A. N. Pinto, F. P. Guiomar, S. B. Amado, C. S. Martins, S. Ziaie, N. J. Muga, ''Digital Signal Processing for Coherent Optical Communication Systems,'' ALT 2015 - The 23th Annual International Conference on Advanced Laser Technologies, Faro, Portugal, September 7-11, 2015 (invited paper). (download)
18. F. P. Guiomar, S. B. Amado, J. Reis, S. Rossi, A. Chiuchiarelli, J. Oliveira, A. L. Teixeira, A. N. Pinto, ''Ultra-Long-Haul 400G Superchannel Transmission with Multi-Carrier Nonlinear Equalization,'' Proc ECOC 2015 - European Conf. on Optical Communications, Valencia, Spain, paper Th.2.2.4., 27 September - 1 October, 2015, (Runner-Up of the Best Student Paper Award). (download)
17. S. B. Amado, F. P. Guiomar, N. J. Muga, J. Reis, S. Rossi, A. Chiuchiarelli, J. Oliveira, A. L. Teixeira, A. N. Pinto, ''Experimental Demonstration of the Parallel Split-Step Method in Ultra-Long-Haul 400G Transmission,'' Proc ECOC 2015 - European Conf. on Optical Communications, Valencia, Spain, paper Th.2.6.2., 27 September - 1 October, 2015 (download)
16. A. N. Pinto, S. B. Amado, C. S. Martins, S. Ziaie, N. Muga, R. M. Ferreira, A. L. Teixeira, F. P. Guiomar, ''Real-time Digital Signal Processing for Coherent Optical Systems,'' International Conf. on Transparent Optical Networks - ICTON, Budapest, Hungary, Mo.C1.2, pp. 1-5, July, 2015 (Invited Paper). (download)
15. N. J. Muga, S. Ziaie, A. Shahpari, F. P. Guiomar, A. N. Pinto, ''Optimizing Polarization Related Dynamic Equalization in Coherent Optical Communications,'' International Conf. on Transparent Optical Networks - ICTON, Budapest, Hungary, Mo.C1.6, pp. 1-4, July, 2015. (download)
14. S. B. Amado, F. P. Guiomar, N. Muga, A. N. Pinto, ''Assessment of Nonlinear Equalization Algorithms for Coherent Optical Transmission Systems using an FPGA,'' International Conf. on Transparent Optical Networks - ICTON, Budapest, Hungary, Mo.C1.4, pp. 1-4, July, 2015. (download)
13. S. K. Routray, C. Pavan, G. Sahin, J. R. Ferreira da Rocha, A. N. Pinto, ''Statistical Analysis of Optical Transport Networks: Characterization and Application,'' 2015 European Conference on Networks and Communications - EuCNC, Paris, France, POS01.5, pp. 753-754, 29 June - 2 July, 2015. (download)
12. F. P. Guiomar, S. B. Amado, C. Martins, J. D. Reis, A. L. Teixeira, A. N. Pinto, ''Volterra-based Digital Backpropagation: Performance and Complexity Assessment,'' 2015 Signal Processing in Photonic Communications - SPPCom, Boston, USA, SpS2C.1, pp. , 27 June - 1 July, DOI:10.1364/SPPCOM.2015.SpS2C.1, 2015 (Invited Paper). (download)
11. F. P. Guiomar, S. B. Amado, C. S. Martins, A. N. Pinto, ''Parallel Split-Step Method for Digital Backpropagation,'' Proc. Optical Fiber Communications Conference And Exhibition - OFC, Los Angeles, USA, pp. 1-3, Th2A.28, March 2015. (download)
10. F. P. Guiomar, S. B. Amado, A. Carena, G. Bosco, A. Nespola, A. N. Pinto, ''Transmission of PM-64QAM over 1524 km of PSCF using Fully-Blind Equalization and Volterra-Based Nonlinear Mitigation,'' Proc ECOC 2014 - European Conf. on Optical Communications, Cannes, France, September, 2014. (download)
9. N. J. Muga, and A. N. Pinto, ''Dynamic Method for Stokes Space Based Polarization Demultiplexing of Advanced Modulation Formats,'' Proc ICTON 2014 - International Conference on Transparent Optical Networks, Graz, Austria, 2014. (download)
8. A. N. Pinto, F. P. Guiomar, S. B. Amado, S. Ziaie, A. Shahpari, R. M. Ferreira, N. J. Muga and A. L. Teixeira, ''Digital Equalization of Optical Nonlinearities in Very High-Speed Optical Communication Systems,'' Proc ICTON 2014 - International Conference on Transparent Optical Networks, Graz, Austria, 2014. (download)
7. S. B. Amado, R. M. Ferreira, P. S. Costa, F. P. Guiomar, S. Ziaie, A. L. Teixeira, N. J. Muga and A. N. Pinto, "Clock and carrier recovery in high-speed coherent optical communication systems, Proc AOP 2014 - International Conference on Applications of Optics and Photonics," Aveiro, Portugal, 2014. (download)
6. G. M. Fernandes, N. J. Muga and A. N. Pinto, "Mode Conversion Based on the Acousto-Optic Eect for Mode Division Transmission," Proc AOP 2014 - International Conference on Applications of Optics and Photonics, Aveiro, Portugal, 2014. (download)
5. F. P. Guiomar, S. B. Amado and A. N. Pinto, "Reducing the complexity of digital nonlinear compensation for high-speed coherent optical communication systems," Proc AOP 2014 - International Conference on Applications of Optics and Photonics, Aveiro, Portugal, 2014. (download)
4. S. K. Routray, J. R. Ferreira da Rocha and A. N. Pinto, ''Estimating the Parameters of Optical Transport Networks from Their Circumferential Ellipses,'' Proc ICT 2014 - International Conference on Telecommunications, Lisbon, Portugal, 2014. (download)
3. N. J. Muga, F. P. Guiomar, A. N. Pinto, ''Stokes Space Based Digital PolDemux for Polarization Switched-QPSK Signals,'' Proc CLEO 2013 - Conference on Lasers and Electro-Optics, San Jose, California, USA, 2013. (download)
2. A. N. Pinto, S. B. Amado, N. J. Muga, F. P. Guiomar, ''Equalization of Fiber Impairments Using High-Speed Digital Signal Processing,'' Proc ICTON 2013 - International Conf. on Transparent Optical Networks, Cartagena, Spain, 2013. (download)
1. F. P. Guiomar, S. B. Amado, N. J. Muga, J. D. Reis, A. L. Teixeira, A. N. Pinto, ''Simplified Volterra Series Nonlinear Equalizer by Intra-Channel Cross-Phase Modulation Oriented Pruning,'' Proc ECOC 2013 - European Conf. on Optical Communications, London, United Kingdom, 2013. (download)

• Communications in national scientific meetings (7/2)

7. N. J. Muga, A. N. Pinto, ''Adaptive Best Fitting Plane Algorithm for Stokes Space Based Polarization Demultiplexing in Digital Coherent Optical Receivers,'' Conftele 2015 - 10th Conference on Telecommunications, Aveiro, Portugal, September 17-18, pp. 250-253, 2015. (download)
6. S. K. Routray, C. Pavan, G. Sahin, J. R. Ferreira da Rocha, A. N. Pinto, ''Statistical Analysis and Modeling in Optical Transport Networks: Characterization and Application,'' Conftele 2015 - 10th Conference on Telecommunications, Aveiro, Portugal, September 17-18, pp. 457-460, 2015. (download)
5. S. Ziaie, F. P. Guiomar, R. M. Ferreira, S. B. Amado, A. Shahpari, A. L. Teixeira, A. N. Pinto, ''100 Gbps DP-QPSK Transmission over 8000 km of Standard Single Mode Fiber using Recirculating Loop Technique,'' Conftele 2015 - 10th Conference on Telecommunications, Aveiro, Portugal, September 17-18, pp. 28-31, 2015. (download)
4. S. B. Amado, F. P. Guiomar, N. J. Muga, J. D. Reis, S. M. Rossi, A. Chiuchiarelli, J. R. F. Oliveira, A. L. Teixeira, A. N. Pinto, ''Experimental Demonstration of the Weighted Volterra Series Nonlinear Equalizer,'' Conftele 2015- 10th Conference on Telecommunications, Aveiro, Portugal, September 17-18, pp. 197-200, 2015. (download)
3. N. J. Muga, A. N. Pinto, "Adaptive 3D Stokes Space Based PolDemux in High-Speed Optical Transmission Systems ," (Poster), Research Day UA, University of Aveiro, 3rd of June 2014. (download)
2. S. B. Amado, F. P. Guiomar and A. N. Pinto, "Digital Equalization of Chromatic Dispersion in an FPGA," Proc Confetele 2013 - Conf. on Telecommunications," Vol. 1, pp. 281-284, Castelo Branco, Portugal, 2013. (download)
1. N. J. Muga, A. N. Pinto, ''Digital Signal Processing for Coherent Detection: a 3D Stokes Space Based Approach,'' Proc Confetele 2013 - Conf. on Telecommunications, Vol. 1, pp. 125-128, Castelo Branco, Portugal, 2013. (download)

• Reports (2/1)

1. Progress Report. (download)
2. Final Report. (download)

• Milestones (4/5)

1. Milestone I : Nonlinear Equalization Techniques for WDM Transmission. (download)
2. Milestone II : Analytical Tools to Assess the Merit of Digital Equalization. (download)
3. Milestone III : Analysis and Equalization Tools for Few-mode Fibers. (download)
4. Milestone V : Real-Time Implementation of Equalization Techniques. (download)

• Organization of seminars and conferences (2/2)

• VII Seminar in Multi-Gigabit Optical Networks
• VIII Seminar in Multi-Gigabit Optical Networks

• PhD Thesis (7/3)

• In Progress:
7. Celestino Sanches Martins, Thesis subject: "Digital Signal Processing Techniques for High Speed Optical Communication Systems".
6. Somayeh Ziaie, Thesis subject: " Optimized Constellations for Optical Communication Systems".
5. Sofia B. Amado, Thesis subject: "Digital Equalization for Optical Coherent Transmission Systems".
4. Gil M. Fernandes, Thesis subject: "Digital Signal Processing for Optical Transmission Systems Based on Space-Division Multiplexing ".

• Finished:
3. Fernando Pedro Pereira Guiomar, thesis subject: "Digital Nonlinear Equalization for Optical Transmission Systems," defense date: 7/9/2015 (winner of the Photonics21 Student Innovation Award 2016). (download)
2. Sudhir Kumar Routray, thesis subject: "Statistical Analysis and Modeling of Optical Transport Networks," defense date: 11/3/2015. (download)
1. Ali Shahpari, thesis subject: "Next Generation Optical Access Networks: Technologies and Economics," defense date: 6/3/2015. (download)

• Master dissertation (5/3)

• In Progress:
5. Inês Do Vale Marques Olveira, Master dissertation subject: "Equalização Digital em Sistemas de Transmissão Coerentes Sobre Fibras Óticas".
4. Elio Coelho, Master dissertation subject: "Redes Óticas de Nova Geração".

• Finished:
3. Pedro Martins, Master dissertation subject: "Optical Packet Transport Networks", defense date: 18/12/2015. (download)
2. Luis Brito, Master dissertation subject: "Compensação Digital da Dispersão Cromática," defense date: 12/12/2014. (download)
1. Miguel D. Henriques, Master dissertation subject: "Otimização do Processo de Comutação em Redes de Transporte," defense date: 10/12/2013. (download)

• Models (2/2)

2. Adaptive PolDemux in Stokes Space. (download)
1. Signal propagation over few-mode fibers. (download)

 

• Software (3/2)

3. Numerical Tools for Transmission, Detection and Processing of Coherent Optical Signals (OptDSP). (download)
2. Optical Coherent Receiver Analyzer (OCR). (download)
1. Stokes Space Based Numerical Tool for Polarization-Related Processing of Coherent Optical Signals (StokesDSP). (download)

• Patents (1/1)
1. A.N. Pinto, F. P. Guiomar, S. Amado, Celestino S. Martins, "Filtro Digital de Baixa Complexidade para a Compensação da Dispersão Cromática no Domínio do Tempo, " 20151000062379, July, 2015. (download)

 

• Prototypes (2/1)

2. 100 Gbps DP-QPSK Transmission using Recirculating Loop Technique. (Video)
1. Real-Time Implementation of Digital Signal Processing Subsystems for Coherent Optical Receivers. (Video)