Impact of TWDM on optional real-time QPSK WDM channels. - Ricardo M. Ferreira; Ali Shahpari; Sofia B. Amado; Pedro Costa; Fernando P. Guiomar; Armando N. Pinto; António L. J. Teixeira (ECOC, 2014)

Field-trial of a real-time bidirectional UDWDM-PON coexisting with GPON, RF video overlay and NG-PON2 systems. - Ricardo M. Ferreira; Ali Shahpari; Fernando P. Guiomar; Sofia B. Amado; Cláudio Rodrigues; Jacklyn D. Reis; Armando N. Pinto; António L. J. Teixeira (ECOC, 2015)

Experimental demonstration of interchannel FWM mitigation on coherent bidirectional UDWDM networks. - Jacklyn D. Reis; Sandro M. Rossi; Andrea Chiuchiarelli; Ricardo M. Ferreira; Victor E. Parahyba; Ali Shahpari; António L. J. Teixeira; Juliano R. F. Oliveira (ECOC, 2015)

Multiple system configuration for next generation optical access networks with real-time Nyquist UDWDM-PON. - Ali Shahpari; Ricardo M. Ferreira; Somayeh Ziaie; Zoran Vujicic; Jacklyn D. Reis; Juliano R. F. Oliveira; António L. J. Teixeira (ECOC, 2015)

Demonstration of Nyquist UDWDM-PON with digital signal processing in real-time. - Ricardo M. Ferreira; Jacklyn D. Reis; Sandro M. Rossi; Sofia B. Amado; Ali Shahpari; Neil Guerrero González; Juliano R. F. Oliveira; Armando N. Pinto; António L. J. Teixeira (OFC, 2015)

Bidirectional coherent WDM-PON performance with real-time Nyquist 16QAM transmitter. - Jacklyn D. Reis; Ricardo M. Ferreira; Sandro M. Rossi; Gabriel J. Suzigan; Thyago M. S. Pinto; Ali Shahpari; António L. J. Teixeira; Neil Guerrero González; Juliano R. F. Oliveira (OFC, 2015)

Hardware optimization for carrier recovery based on Mth power schemes. - Ricardo M. Ferreira; Ali Shahpari; Fernando P. Guiomar; Sofia B. Amado; Miguel Drummond; Jacklyn D. Reis; Armando N. Pinto; António L. J. Teixeira (OFC, 2016)

Coherent UDWDM Transceivers Based on Adaptive Stokes Space Polarization Demultiplexing in Real-Time. - Somayeh Ziaie; Ricardo M. Ferreira; Nelson J. Muga; Fernando P. Guiomar; Ali Shahpari; António Teixeira 002; Armando N. Pinto (ECOC, 2017)

Real-time demonstration of low-complexity time-domain chromatic dispersion equalization. - Celestino Sanches Martins; Sofia B. Amado; Ricardo M. Ferreira; Ali Shahpari; António L. J. Teixeira; Fernando P. Guiomar; Armando N. Pinto (ICTON, 2017)

Advanced digital signal processing techniques based on Stokes space analysis for high-capacity coherent optical systems. - Nelson J. Muga; Gil M. Fernandes; Somayeh Ziaie; Ricardo M. Ferreira; Ali Shahpari; António L. J. Teixeira; Armando N. Pinto (ICTON, 2017)

Adaptive stokes space based polarization demultiplexing for flexible UDWDM metro-access networks. - Somayeh Ziaie; Nelson J. Muga; Ricardo M. Ferreira; Fernando P. Guiomar; Ali Shahpari; António L. J. Teixeira; Armando N. Pinto (OFC, 2017)

A dynamic model for venture capitalists' entry-exit investment decisions. - Ricardo M. Ferreira; Paulo J. Pereira (Eur. J. Oper. Res., 2021)