Papers in Conference Proceedings  [139] 

- Alves , T. M. F.; Cartaxo, A.; "Experimental assessment of the performance of bidirectional OFDM-based wireless-wired services in next-generation LR-PONs", Proc International Conf. on Transparent Optical Networks - ICTON, Cartagena, Spain, Vol. -, pp. - - -, June, 2013.
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- R. Llorente; M. Morant; E. P. Pellicer; M. H. Herman; Z. N. Nagy; J. H. Herrera; J. C. Correcher; Alves , T. M. F.; Cartaxo, A.; et. al.; "Radio-over-fiber quintuple-play service provision for deep fiber-to-the-home passive networks", Proc IEEE International Conf. on Communications - ICC, Budapest, Hungary, Vol. -, pp. - - -, June, 2013.
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- Cruz, P.; Cartaxo, A.; "Performance Improvement of OFDM Signals in EAM-based Communications Through Precoding", Proc Conf. on Telecommunications - ConfTele, Castelo Branco, Portugal, Vol. 1, pp. 61 - 64, May, 2013.
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- Alves , T. M. F.; M. Morant; Cartaxo, A.; R. Llorente; "Wired-wireless services provision in FSAN NG-PON2 compliant long-reach PONs: performance analysis", Proc OSA Optical Fiber Communications - OFC, Anaheim, United States, Vol. -, pp. - - -, March, 2013.
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- Carvalho, F. C.; Cartaxo, A.; "On the Electrical Power Distribution for Coexisting OFDM-based Signals in Converged Long-Reach Passive Optical Networks", Proc IEEE Photonics Conf. - IPC, Burlingame, United States, Vol. ThC4, pp. 1 - 2, September, 2012.
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- R. Llorente; M. Morant; F. M. Martinez; Alves , T. M. F.; Cartaxo, A.; T. Q Quinlan; S. Walker; C.Rodrigues Rodrigues; J. H. Herrera; et. al.; "Impairment compensation in long-reach integrated optical-wireless PON", Proc Future Network and Mobile Summit, Berlin, Germany, Vol. 1, pp. 1 - 9, July, 2012.
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- Cartaxo, A.; Alves , T. M. F.; Carvalho, F. C.; J. Morgado; "Linearization techniques of electro-optical converters for multi-format OFDM-based PONs", Proc International Conf. on Transparent Optical Networks - ICTON, Coventry, United Kingdom, Vol. , pp. 1 - 4, July, 2012.
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- Costa, N.; Alves , T. M. F.; Fonseca, D.F.; Cartaxo, A.; "General memory polynomial for transmission impairments mitigation in coherent communication systems", Proc OSA Signal Processing in Photonic Communications - SPPCom, Colorado Springs, United States, Vol. -, pp. - - -, June, 2012.
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- Alves , T. M. F.; J. Morgado; Cartaxo, A.; "Linearity improvement of directly modulated PONs by digital pre-distortion of coexisting OFDM-based signals", Proc OSA Access Networks and In-house Communications (OSA Topical Meeting) - ANIC, Colorado Springs, United States, Vol. AW4A.3, pp. 1 - 2, June, 2012.
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- Alves , T. M. F.; M. Morant; Cartaxo, A.; R. Llorente; "Wired-wireless OFDM signals coexistence in LR-PONs using two centralized compensation stages", Proc OSA Access Networks and In-house Communications (OSA Topical Meeting) - ANIC, Colorado Springs, United States, Vol. AW4A.5, pp. 1 - 2, June, 2012.
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- M. Morant; Alves , T. M. F.; Cartaxo, A.; R. Llorente; "Transmission impairment compensation using broadband channel sounding in multi-format OFDM-based long-reach PONs", Proc OSA Optical Fiber Communications - OFC, Los Angeles, United States, Vol. 1, pp. 1 - 3, March, 2012.
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- Alves , T. M. F.; Cartaxo, A.; "Dependence of the transmission performance of multi-Band OFDM-UWB signals in LR-PONs on the modulator bias and driving voltages", Proc International Microwave and Optoelectronics Conf. - IMOC, Natal, Brazil, Vol. -, pp. 814 - 818, October, 2011.
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- J. Morgado; Fonseca, D.F.; Cartaxo, A.; "Influence of Spectrum Location of Gigabit-Ethernet in Coexistence with Multi-Band OFDM-UWB Wireless Signals on the Long-Reach PON Performance Using Directly Modulated Lasers", Proc IEEE International Topical Meeting on Microwave Photonics, Singapore, Singapore, Vol. --, pp. -- - --, October, 2011.
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- Fonseca, D.F.; J. Morgado; Cartaxo, A.; "Multi-band UWB signals transmission improvement due to pre-emphasis in LR-PONs using DMLs", Proc IEEE Photonics Conf. - IPC, Arlington, United States, Vol. -, pp. - - -, October, 2011.
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- J. Morgado; Fonseca, D.F.; Cartaxo, A.; "Transmission of Coexisting OFDM-Baseband and Multi-Band OFDM-UWB Signals Along LR-PONs Using DMLs", Proc IEEE Photonics Conf. - IPC, Arlington, United States, Vol. --, pp. -- - --, October, 2011.
Abstract | Full text (PDF 133KB) | BibTex

- Rebola, J. L. ; Cartaxo, A.; "Using the Moment Generating Function for the Performance Assessment of Optically Preamplified Direct-Detection OFDM Systems", Proc International Microwave and Optoelectronics Conf. - IMOC, Natal, Brazil, Vol. -, pp. - - -, October, 2011.
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- Alves , T. M. F.; Cartaxo, A.; "Photonic analogue-to-digital converted based on wavelength division multiplexing technique", Proc ICETE International Conf. on Optical Communication Systems - OPTICS, Sevilha, Spain, Vol. 1, pp. 1 - 10, July, 2011.
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- Cartaxo, A.; J. Morgado; Fonseca, D.F.; "A perspective on optical-wireless converged NG-FTTH networks using directly modulated lasers", Proc International Conf. on Transparent Networks – ICTON , Stockholm, Sweden, Vol. 1, pp. 1 - 4, June, 2011.
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- C.Rodrigues Rodrigues; Carvalho, F. C.; Cartaxo, A.; "Evolution of FTTH networks based on Radio-Over-Fibre", Proc International Conf. on Transparent Networks – ICTON , Stockholm, Sweden, Vol. Tu.B6.6, pp. 1 - 4, June, 2011.
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- Costa, N.; Fonseca, D.F.; Cartaxo, A.; "Influence of local oscillator-to-signal power ratio on the gaussianity of CP-QPSK signal statistics", Proc International Conf. on Transparent Networks – ICTON , Stockholm, Sweden, Vol. Tu.C1.6, pp. -1 - -4, June, 2011.
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- Carvalho, F. C.; Cartaxo, A.; "Power Requirements for Coexisting Baseband and Wireless OFDM-based Signals in Hybrid Metro-Access Networks", Proc International Conf. on Transparent Networks – ICTON , Stockholm, Sweden, Vol. Tu.A5.6, pp. 1 - 4, June, 2011.
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- Fonseca, D.F.; J. Morgado; Cartaxo, A.; "Transmission of multi-band OFDM-UWB signals along NG-FTTH networks using directly modulated lasers", Proc OSA Optical Fiber Communications - OFC, Los Angeles, United States, Vol. paper OWK2, pp. - - -, March, 2011.
Abstract | Full text (PDF 210KB) | BibTex

- Cartaxo, A.; J. Morgado; Alves , T. M. F.; Carvalho, F. C.; Fonseca, D.F.; Rebola, J. L. ; "A view on optical-wireless converged NG-FTTH networks ", Proc Annual Workshop on Photonic Technologies for Access and Biophotonics, Stanford, United States, Vol. , pp. - - -, January, 2011.
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- Cartaxo, A.; Alves , T. M. F.; "Theoretical and experimental performance evalutation methods for DD-OFDM systems with optical amplification", Proc Simpósio Brasileiro de Microondas e Optoelectrónica, Vila Velha, Brazil, Vol. 1, pp. 702 - 708, August, 2010.
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- Carvalho, F. C.; Cartaxo, A.; "Baseband OFDM and Ultrawide Band OFDM Signals Coexistence Requirements for Extended Reach PONs", Proc International Conf. on Transparent Networks – ICTON , Munich, Germany, Vol. Th.A2.6, pp. 1 - 4, July, 2010.
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- J. Morgado; Cartaxo, A.; "OFDM-UWB signal distribution over long-reach PON using directly modulated lasers", Proc International Conf. on Transparent Networks – ICTON , Munchen, Germany, Vol. --, pp. 1 - 4, July, 2010.
Abstract | Full text (PDF 155KB) | BibTex

- Alves , T. M. F.; Cartaxo, A.; "On the BER estimation of experimental direct detection OFDM systems", Proc ICETE International Conf. on Optical Communication Systems - OPTICS, Athens, Greece, Vol. 1, pp. 1 - 5, July, 2010.
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- Cartaxo, A.; Costa, N.; Fonseca, D.F.; "Analysis of optimum dispersion maps for DQPSK systems", Proc International Conf. on Transparent Networks – ICTON , Munich, Germany, Vol. Mo.D1.1, pp. 1 - 4, June, 2010.
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- A. Castro; V. Teichmann; D. Mello; Cartaxo, A.; "Impact of launch conditions on the transfer function of multimode fibers", Proc Symp. on Enabling Optical Networks - SEON, Porto, Portugal, Vol. 1, pp. 1 - 4, June, 2010.
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- Costa, N.; Fonseca, D.F.; Cartaxo, A.; "Impact of nonlinear phase noise on the optimum dispersion map for DQPSK systems", Proc European Conf. on Networks and Optical Communications - NOC, Faro, Portugal, Vol. -, pp. - - -, June, 2010.
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- V. Teichmann; A. Castro; Cartaxo, A.; D. Mello; "Influence of the equalizer transfer function on the performance of OFDM transmission along multimode fiber", Proc Symp. on Enabling Optical Networks - SEON, Porto, Portugal, Vol. 1, pp. 1 - 4, June, 2010.
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- Alves , T. M. F.; Cartaxo, A.; "BPSK vs. QPSK comparison in OFDM-UWB signal distribution over FTTH networks", Proc Summer Topical Meetings - LEOS , Newport, United States, Vol. -, pp. 51 - 52, July, 2009.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "40Gb/s optical single-sideband transmission resorting to pseudolinear regime and electrical dispersion compensation", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Ponta Delgada, Portugal, Vol. Monday, pp. 1 - 4, June, 2009.
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- Costa, N.; Cartaxo, A.; "Impact of inter-symbol interference on optical DQPSK systems performance evaluation using equivalent differential phase", Proc International Conf. on Transparent Networks – ICTON , Ponta Delgada, Portugal, Vol. Tu.B2.3, pp. - , June, 2009.
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- J. Morgado; Cartaxo, A.; "Influence of laser chirp on the performance of 40Gbit/s optically compensated directly modulated systems", Proc International Conf. on Transparent Networks – ICTON , São Miguel, Portugal, Vol. 1, pp. 1 - 5, June, 2009.
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- Cartaxo, A.; Alves , T. M. F.; "Performance evaluation methods of direct-detection OFDM systems", Proc International Conf. on Transparent Networks – ICTON , Ponta Delgada, Portugal, Vol. -, pp. - - -, June, 2009.
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- Alves , T. M. F.; Cartaxo, A.; "Impact of the dispersion-induced power fading on the fiber transmission performance of OFDM-UWB radio signals", Proc Asia Pacific Microwave Conf. - APMC, Hong Kong/Macau, China, Vol. -, pp. 1 - 4, December, 2008.
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- M. Morant; Alves , T. M. F.; R. Llorente; M. Beltran; J. Perez; Cartaxo, A.; J. Marti; "Impact of pilot tone-assisted equalization in Wimedia-defined OFDM-UWB signals transmission in FTTH networks", Proc IEEE International Topical Meeting on Microwave Photonics, Gold Cost, Australia, Vol. -, pp. 217 - 220, October, 2008.
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- Alves , T. M. F.; M. Morant; R. Llorente; Cartaxo, A.; J. Marti; "Experimental demonstration of 1.56 Gbit/s OFDM-UWB distribution over 100 km of standard-fibre in FTTH networks", Proc Optoelectronics and Communications Conf. - OECC, Sydney, Australia, Vol. -, pp. 1 - 2, July, 2008.
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- Alves , T. M. F.; Cartaxo, A.; "Aliasing and inter-channel interference impact on the performance of multi-channel OFDM-UWB distribution in FTTH networks", Proc International Conf. on Transparent Networks – ICTON , Athens, Greece, Vol. 4, pp. 86 - 89, June, 2008.
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- Costa, N.; Cartaxo, A.; "Analysis of DQPSK signals performance in upgrading metropolitan area networks to 40 Gbit/s per channel", Proc International Conf. on Transparent Networks – ICTON , Athens, Greece, Vol. 1, pp. 43 - 46, June, 2008.
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- R. Llorente; Alves , T. M. F.; M. Morant; M. Beltran; J. Perez; Cartaxo, A.; J. Marti; "Optical distribution of OFDM and impulse-radio UWB in FTTH networks", Proc OSA Optical Fiber Communications - OFC, California, United States, Vol. -, pp. 1 - 3, February, 2008.
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- Costa, N.; Cartaxo, A.; "BER estimation in DPSK systems using the differential phase Q taking into account the electrical filtering influence", Proc International Microwave and Optoelectronics Conf. - IMOC, Salvador, Brazil, Vol. _, pp. 337 - 340, October, 2007.
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- Pavlovic, N.P.; Cartaxo, A.; "Dependence of optimum residual dispersion per span on the number of spans for various signaling formats over 43 Gbit/s SSMF transmission system", Proc International Microwave and Optoelectronics Conf. - IMOC, Salvador, Brazil, Vol. 1, pp. 653 - 657, October, 2007.
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- Alves , T. M. F.; Cartaxo, A.; "Dispersion map design for XPM suppression in NRZ 10 Gbit/s pre-compensated WDM links using standard-fibre and 50 GHz of channel spacing", Proc International Microwave and Optoelectronics Conf. - IMOC, Salvador, Brazil, Vol. 1, pp. 648 - 652, October, 2007.
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- J. Morgado; Cartaxo, A.; "Influence of laser chirp and parasitics on optimized dispersion-managed directly modulated systems operating at 10Gbit/s", Proc International Microwave and Optoelectronics Conf. - IMOC, Salvador, Brazil, Vol. --, pp. 531 - 535, October, 2007.
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- Costa, N.; Cartaxo, A.; "Novel approach for BER evaluation of DQPSK systems using differential phase Q", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, Lake Buena Vista, United States, Vol. MP3, pp. 143 - 144, October, 2007.
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- Alves , T. M. F.; Costa, N.; Cartaxo, A.; "Dependence of XPM degradation on the dispersion map for 10 Gbit/s WDM links over standard-fibre employing duobinary format", Proc International Conf. on Transparent Networks – ICTON , Rome, Italy, Vol. Tu.A1.1, pp. 79 - 82, July, 2007.
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- Costa, N.; Alves , T. M. F.; Cartaxo, A.; "Influence of dispersion compensation granularity on the XPM-induced degradation in NRZ-IM-DD WDM links at 10 Gbit/s per channel with 50 GHz of channel spacing", Proc International Conf. on Transparent Networks – ICTON , Rome, Italy, Vol. Tu.C1.6, pp. 151 - 154, July, 2007.
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- Monteiro, P.; Madureira, M.; D. Fonseca; Aguiar, R. L.; Cartaxo, A.; Violas, M.; "Optical Channel Impairments Mitigation on 40 Gb/s Systems Resorting to Post-Detection Adjustable Electrical Compensation", Proc International Conf. on Transparent Networks – ICTON , Rome, Italy, Vol. 1, pp. 20 - 23, July, 2007.
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- Aguiar, R. L.; Cartaxo, A.; Madureira, M.; Monteiro, P.; D. Fonseca; "40 Gb/s GVD and PMD Compensation Using and Linear Adjustable Filter Prototype on OSSB Modulation", Proc IEEE International Symp. on Circuits and Systems - ISCAS, New Orleans, United States, Vol. 0, pp. 0 - 0, May, 2007.
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- A. Guardado ; S. Santos; Costa, N.; Alves , T. M. F.; Cartaxo, A.; "A software tool for designing wavelength division multiplexed links", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 497 - 500, May, 2007.
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- Costa, N.; Cartaxo, A.; "Analysis of optimal dispersion map due to XPM in 10 Gbit/s WDM links with standard single mode fibres", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 537 - 540, May, 2007.
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- S. Santos; Cartaxo, A.; "Comparison of power depletion and waveform distortion limitations due to inter-channel stimulated Raman scattering effect in WDM links", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 565 - 568, May, 2007.
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- Costa, N.; Alves , T. M. F.; Cartaxo, A.; "Dispersion map optimization for XPM-limited 10 Gbit/s NRZ-IM-DD WDM links", Proc IASTED International Conf. on Wireless and Optical Communications - WOC, Montréal, Canada, Vol. 1, pp. 274 - 279, May, 2007.
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- S. Cani; M. J. Pontes; M. Segatto; M. T. Giraldi; C. A. Procópio; E. C. Souza; A. P. Barbero; Cartaxo, A.; "Experimental validation of a new analytical model for gain of broadband Raman amplifiers", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 569 - 572, May, 2007.
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- Madureira, M.; Fonseca, D.F.; Monteiro, P.; Cartaxo, A.; Aguiar, R. L.; "GVD and PMD compensation using a linear adjustale filter prototype in a 40Gb/s OSSB system", Proc IEEE International Symp. on Circuits and Systems - ISCAS, New Orleans, United States, Vol. 0, pp. 1891 - 1894, May, 2007.
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- Alves , T. M. F.; Cartaxo, A.; "Impact of the dispersion compensating fibre nonlinearity on the optimum dispersion map due to XPM in 10 Gbit/s WDM links", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 581 - 584, May, 2007.
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- Alves , T. M. F.; Costa, N.; Cartaxo, A.; "Influence of DCM nonlinearity on the XPM degradation in 10 Gbit/s dispersion managed NRZ-IM-DD links", Proc IASTED International Conf. on Wireless and Optical Communications - WOC, Montreal, Canada, Vol. 1, pp. 221 - 224, May, 2007.
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- Aguiar, R. L.; Monteiro, P.; Madureira, M.; D. Fonseca; Cartaxo, A.; R. Sousa ; Violas, M.; "Electronic dispersion compensation solution for high-speed optical fiber communications", Proc Symp. on Innovative Lightwave Technology Evolution for 100GbE Services, 0, Japan, Vol. 0, pp. 0 - 0, March, 2007.
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- T. Kawanishi; T. Sakamoto; Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "Fine transmittance/reflectivity measurement system using single-sideband frequency sweeper with ultra-wideband Hilbert transformer", Proc European Conf. on Optical Communications - ECOC, Cannes, France, Vol. -, pp. - - -, September, 2006.
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- Cartaxo, A.; Pavlovic, N.P.; Dias, T.; "Nonlinearity and dispersion tolerances of SSB-DCS-RZ, SSB-AMI-RZ, and BL-PSBT in long-haul UDWDM transmission systems", Proc IEEE International Telecommunications Symp., Fortaleza, Brazil, Vol. , pp. 276 - 281, September, 2006.
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- Dias, T.; Cartaxo, A.; "Comparison of performance of SSB-AMI-RZ formats in long-haul 40 Gbit/s/channel UDWDM transmission systems", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Nottingham, United Kingdom, Vol. , pp. 281 - 284, June, 2006.
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- M. Leiria; Cartaxo, A.; "Impact of noise level on the optimization of parameters of 2R all-optical regenerators", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Nottigham, United Kingdom, Vol. Th.B1.7, pp. 289 - 292, June, 2006.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "Recent developments on optical single sideband transmission systems", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Nottingham, United Kingdom, Vol. -, pp. - - -, June, 2006.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "NRZ optical single sideband transmitter based on three phase modulators", Proc International Conf. on Telecommunications - ICT, Funchal, Portugal, Vol. -, pp. - - -, May, 2006.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "Opto-electrical filter for 40 Gb/s optical single sideband signal generation", Proc OSA Optical Fiber Communications - OFC, Anaheim, United States, Vol. -, pp. - - -, March, 2006.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "Highly efficient electrical dispersion compensation scheme for optical single sideband systems", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, Sydney, Australia, Vol. -, pp. 898 - 899, October, 2005.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; Silveira, T.; A. Ferreira; Violas, M.; "40 Gbit/s OSSB-NRZ transmitter for high capacity systems", Proc European Conf. on Optical Communications - ECOC, Glasgow, United Kingdom, Vol. 4, pp. 787 - 788, September, 2005.
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- R.S. Luis; Teixeira, A.; Cartaxo, A.; Monteiro, P.; "A short theoretical study on the XPM frequency limitations in NOLM based wavelength converters", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Barcelona, Spain, Vol. 1, pp. 109 - 112, July, 2005.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "Comparison of implementations using the phase shift technique to generate OSSB-NRZ and OSSB-RZ signals", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Barcelona, Spain, Vol. 2, pp. 197 - 200, July, 2005.
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- Pavlovic, N.P.; Cartaxo, A.; "Optimized bandwidth-limited duobinary coding format for ultra dense WDM systems", Proc International Conf. on Transparent Networks – ICTON , Barcelona, Spain, Vol. 2, pp. 385 - 388, July, 2005.
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- Rebola, J. L. ; Cartaxo, A.; "Simplified approach for the assessment of the performance of optical systems with polarisation dependent loss", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Barcelona, Spain, Vol. 2, pp. 189 - 192, July, 2005.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "Transmission improvements using electrical dispersion compensation at the transmitter side and RZ pulse format in optical single sideband systems", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Barcelona, Spain, Vol. 2, pp. 381 - 384, July, 2005.
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- Rebola, J. L. ; Cartaxo, A.; "An overview of performance assessment of optical receivers wit partially polarised noise", Proc Symp. on Enabling Optical Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 36 - 38, June, 2005.
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- Pavlovic, N.P.; Cartaxo, A.; "First results on a novel coding format for ultra dense WDM systems at 40 Gbit/s/channel", Proc Symp. on Enabling Optical Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 99 - 102, June, 2005.
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- Teixeira, A.; R.S. Luis; Cartaxo, A.; Monteiro, P.; "Novel Distortion Resilient OSNR Monitoring Technique Based on Evaluation of Asynchronous Histograms", Proc International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Barcelona, Spain, Vol. 1, pp. - - -, June, 2005.
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- Fonseca, D.F.; Cartaxo, A.; Monteiro, P.; "On the use of transversal filters in optical single sideband-non return to zero transmission systems", Proc Symp. on Enabling Optical Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 18 - 21, June, 2005.
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- Pavlovic, N.P.; Cartaxo, A.; "Comparison between several enhanced phase-shaped binary transmission formats for 40 Gb/s/channel UDWDM systems", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
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- Cartaxo, A.; R.S. Luis; "Cross-phase modulation in WDM systems", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. ---, pp. --- - ---, April, 2005.
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- R.S. Luis; Cartaxo, A.; "Equivalent linear model of XPM-induced degradation in dispersion compensated WDM systems taking into account the SPM-influence", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
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- J. Morgado; Cartaxo, A.; "Guidelines for laser optimization for dispersion supported transmission systems", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. --, pp. -- - --, April, 2005.
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- Fonseca, D.F.; Monteiro, P.; Cartaxo, A.; "Optical single sideband transmitter based on the Weaver's method", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. --, pp. -- - --, April, 2005.
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- J. Morgado; Cartaxo, A.; "Optimization of a fiber-based dispersion compensation scheme for long-haul directly-modulated/direct-detection systems", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. --, pp. -- - --, April, 2005.
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- Charrua, P.; Cartaxo, A.; "Performance Assessment of AMI-RZ and DCS-RZ SSB Signals in 4×40 Gbit/s/ch UDWDM Systems", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
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- Rebola, J. L. ; Cartaxo, A.; "Rigorous performance assessment of optically preamplified receivers with partially polarised noise and arbitrary optical filtering", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. 1 - 2, April, 2005.
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- Fonseca, D.F.; Cartaxo, A.; "Transition to pseudo-linear regime in dispersion managed systems", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. --, pp. -- - --, April, 2005.
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- Charrua, P.; Cartaxo, A.; "On the suitability of some signalling formats for optical single-sideband transmission", Proc Winter School on Optical Core Networks , Aveiro, Portugal, Vol. -, pp. - - -, February, 2005.
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- Pavlovic, N.P.; Cartaxo, A.; "Optimisation of duobinary coding formats for UDWDM transmission systems", Proc Winter School on Optical Core Networks , Aveiro, Portugal, Vol. 1, pp. C5 - C10, February, 2005.
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- Fonseca, D.F.; Cartaxo, A.; R.S. Luis; "Dependence of reduced model of SPM-limited dispersion managed systems on transmission fiber parameters", Proc IASTED International Conf. on Optical Communication Systems and Networks - OCSN , Bannf, Canada, Vol. 1, pp. 866 - 869, July, 2004.
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- Charrua, P.; Cartaxo, A.; M. Leiria; "Generation and Performance of AMI-RZ and DCS-RZ Signals with Sideband Suppression", Proc IASTED International Conf. on Optical Communication Systems and Networks - OCSN , Banff, AB, Canada, Vol. 1, pp. 857 - 860, July, 2004.
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- Fonseca, D.F.; Monteiro, P.; Cartaxo, A.; Pedro, J. M.; "Impact of electrical equalization and modulation depth on single sideband performance with linear and non-linear transmission", Proc IASTED International Conf. on Optical Communication Systems and Networks - OCSN , Bannf, Canada, Vol. 1, pp. 870 - 875, July, 2004.
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- R.S. Luis; Cartaxo, A.; "Influence of dispersion slope on XPM-induced degradation in dispersion-compensated WDM systems", Proc IASTED International Conf. on Communication Systems and Networks - CSN, Banff, Canada, Vol. 1, pp. 834 - 839, July, 2004.
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- Pavlovic, N.P.; Cartaxo, A.; "Optimized optical filtering for 40 Gb/s/channel enhanced phase-shaped binary transmission in ultra dense WDM systems", Proc International Conf. on Transparent Networks – ICTON , Wroclaw, Poland, Vol. 1, pp. 221 - 224, July, 2004.
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- M. Leiria; Cartaxo, A.; "Performance assessment of transparent optical networks with incoherent homodyne crosstalk and amplified spontaneus emission noise", Proc IASTED International Conf. on Optical Communication Systems and Networks - OCSN , Banff, Canada, Vol. 1, pp. 851 - 856, July, 2004.
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- Charrua, P.; Cartaxo, A.; "Performance of AMI-RZ and DCS-RZ Single-Sideband Signals in an 80% Spectral-Efficient UDWDM Ultra-Long-Haul Transmission System", Proc IEEE LEOS Workshop on Advanced Modulation Formats, San Francisco, United States, Vol. 1, pp. 43 - 44, July, 2004.
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- Fonseca, D.F.; Monteiro, P.; Cartaxo, A.; M. Fujita; "Single sideband demonstration using a four phase-modulators structure", Proc IEEE LEOS Workshop on Advanced Modulation Formats, San Francisco, United States, Vol. 1, pp. 41 - 42, July, 2004.
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- Pavlovic, N.P.; Cartaxo, A.; "Narrow filtered enhanced phase-shaped binary transmission in ultra dense WDM systems for 40 Gb/s/channel", Proc Symp. on Enabling Optical Networks - SEON, Porto, Portugal, Vol. 1, pp. 61 - 62, June, 2004.
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- Cartaxo, A.; "Overview of last achievements of DWDM/ODC project", Proc Symp. on Enabling Optical Networks - SEON, Porto, Portugal, Vol. 1, pp. 39 - 41, June, 2004.
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- Cartaxo, A.; J. Morgado; "Efficient and accurate numerical solution of stochastic partial differential equations: formulating a problem", Proc Matemática em Telecomunicações - Que Problemas? - MTQP, Tomar, Portugal, Vol. 1, pp. 205 - 217, September, 2003.
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- J. Morgado; Cartaxo, A.; "Comparison of laser optimisation for dispersion supported transmission systems at various bit rates", Proc European Conf. on Networks and Optical Communications - NOC, Viena, Austria, Vol. 1, pp. 28 - 35, July, 2003.
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- Rebola, J. L. ; Cartaxo, A.; "Validation of the probability density function of the output current of optically preamplified receivers with arbitrary optical filtering through Monte Carlo simulation", Proc European Conf. on Networks and Optical Communications - NOC, Vienna, Austria, Vol. 1, pp. 151 - 158, July, 2003.
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- R.S. Luis; Cartaxo, A.; "About the estimation of the impact of XPM on the performance of WDM systems", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. -, pp. 245 - 248, June, 2003.
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- J. Morgado; Cartaxo, A.; "Accurate estimation of BER floor due to laser noise on directly modulated direct detection transmission systems", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 331 - 334, June, 2003.
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- M. Leiria; Rebola, J. L. ; Cartaxo, A.; "Gaussian approach for the performance evaluation of transparent optical networks based on optical add-drop multiplexers", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 323 - 326, June, 2003.
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- Fonseca, D.F.; Cartaxo, A.; "Improved reduced model to describe SPM-limited 10 Gbit/s dispersion managed fibre links", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 517 - 520, June, 2003.
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- Pavlovic, N.P.; Cartaxo, A.; "Influence of chirp parameter on pre-distorted 10 Gb/s NRZ installed links", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 509 - 512, June, 2003.
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- J. Morgado; Cartaxo, A.; "Laser optimization for dispersion supported transmission technique", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 569 - 572, June, 2003.
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- Fonseca, D.F.; Cartaxo, A.; "Optical duobinary transmitter optimisation", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 249 - 252, June, 2003.
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- Pavlovic, N.P.; Cartaxo, A.; "Impact of transmitter chirp on optimised pre- and post-dispersion compensation schemes for 10 Gbits/s NRZ links", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, Glasgow, United Kingdom, Vol. 1, pp. 187 - 188, November, 2002.
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- Rebola, J. L. ; Cartaxo, A.; "Optimisation of the duty-cycle of RZ signals in optically preamplified receivers with arbitrary optical filtering", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, Glasgow, United Kingdom, Vol. 2, pp. 780 - 781, November, 2002.
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- M. Leiria; Cartaxo, A.; "Performance optimisation of AWG-based optical add-drop multiplexers for transparent optical networks", Proc International Conf. on Optical Communications and Networks - ICOCN, Singapore, Singapore, Vol. 1, pp. 138 - 141, November, 2002.
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- Sebastião, P.; Cercas, F.C.; Cartaxo, A.; "Performance of TCH codes in a land mobile satellite channel", Proc IEEE International Symp. on Personal, Indoor and Mobile Radio Commun - PIMRC , Lisbon, Portugal, Vol. 4, pp. 1675 - 1679, September, 2002.
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- Rebola, J. L. ; Cartaxo, A.; "Impact of the spontaneous-spontaneous beat noise on the sensitivity of optically preamplified receivers with arbitrary optical filtering", Proc European Conf. on Networks and Optical Communications - NOC, Darmstadt, Germany, Vol. 1, pp. 257 - 264, June, 2002.
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- Rebola, J. L. ; Cartaxo, A.; "Performance optimisation of fibre Bragg gratings for 40 Gbit/s WDM systems with channel spacing of 100 GHz and 200 GHz", Proc European Conf. on Networks and Optical Communications - NOC, Darmstadt, Germany, Vol. 1, pp. 192 - 199, June, 2002.
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- M. Leiria; Cartaxo, A.; "Simple expression to evaluate the margin of transparent optical networks with signal-dependent noise dominance", Proc European Conf. on Networks and Optical Communications - NOC, Darmstadt, Germany, Vol. 1, pp. 425 - 432, June, 2002.
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- Rebola, J. L. ; Cartaxo, A.; "New Gaussian approximation for performance assessment of optically preamplified receivers with arbitrary optical and electrical filters", Proc Pacific Rim Conf. on Lasers and Electro-Optics, Tokyo, Japan, Vol. 2, pp. 316 - 317, July, 2001.
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- J. Morgado; Cartaxo, A.; "New semi-analytical method of estimating the influence of laser noise on direct detection system performance", Proc Pacific Rim Conf. on Lasers and Electro-Optics, Chiba, Japan, Vol. II, pp. 324 - 325, July, 2001.
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- Rebola, J. L. ; Cartaxo, A.; "Rigorous assessment of performance degradation caused by optical filter detuning in optically preamplified receivers", Proc Pacific Rim Conf. on Lasers and Electro-Optics, Tokyo, Japan, Vol. 2, pp. 318 - 319, July, 2001.
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- Rebola, J. L. ; Cartaxo, A.; "Performance of improved fibre grating filters in WDM systems", Proc European Conf. on Networks and Optical Communications - NOC, Ipswich, United Kingdom, Vol. 1, pp. 463 - 469, June, 2001.
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- Rebola, J. L. ; Cartaxo, A.; "Power penalty estimation in optically preamplified receivers", Proc European Conf. on Networks and Optical Communications - NOC, Ipswich, United Kingdom, Vol. 1, pp. 317 - 323, June, 2001.
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- R.S. Luis; Fonseca, D.F.; Cartaxo, A.; "Comparison between DWDM transmission systems over SMF and NZDSF with 25x40Gb/s signals and 50GHz channel spacing", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. -, pp. - - -, April, 2001.
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- Fonseca, D.F.; R.S. Luis; Cartaxo, A.; "Design and performance of AWG multiplexer/demultiplexer in DWDM systems", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. -- - --, April, 2001.
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- Rebola, J. L. ; Cartaxo, A.; "New Gaussian approximation for the performance evaluation of optical receivers with arbitrary optical and electrical filters", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 302 - 306, April, 2001.
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- Rebola, J. L. ; Cartaxo, A.; "On the quaternary level spacing signalling optimisation for increasing the transmission distance in optical communication systems", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 514 - 518, April, 2001.
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- J. Morgado; Cartaxo, A.; "On the semi-analytical estimation of laser noise influence on direct detection transmission system performance", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 364 - 368, April, 2001.
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- J. Morgado; Cartaxo, A.; "Influence of dispersion propagation regime on the dispersion supported transmission performance", Proc Applications of Photonic Technology, Quebec, Canada, Vol. 4087, pp. 457 - 468, June, 2000.
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- J. Morgado; Cartaxo, A.; "Influence of relative intensity noise enhancement by fiber nonlinearity on dispersion supported transmission system performance", Proc Applications of Photonic Technology, Quebec, Canada, Vol. 4087, pp. 469 - 480, June, 2000.
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- Rebola, J. L. ; Cartaxo, A.; "Optimisation of level spacing in quaternary optical communication systems", Proc International Conf. on Applications of Photonic Technology, Ottawa, Canada, Vol. 4087, pp. 49 - 59, June, 2000.
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- J. Morgado; Cartaxo, A.; "Nonlinear transmission of noise along singlemode fiber at zero-dispersion wavelength", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, S. Francisco, United States, Vol. 1, pp. 607 - 608, November, 1999.
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- J. Morgado; Cartaxo, A.; "Impact of laser and booster noises in repeaterless IM/DD systems with optical post- and pre-amplifiers", Proc Pacific Rim Conf. on Lasers and Electro-Optics, Seul, Korea, South, Vol. II, pp. 497 - 498, September, 1999.
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- J. Morgado; Cartaxo, A.; "Frequency noise transmission over nonlinear dispersive singlemode fibres at zero-dispersion wavelength", Proc Conf. on Telecommunications - ConfTele, Sesimbra, Portugal, Vol. 1, pp. 535 - 539, April, 1999.
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- J. Morgado; Cartaxo, A.; "Influence of fibre nonlinearity on noise transmission in IM/DD repeaterless system with optical post- and pre-amplifiers ", Proc Conf. on Telecommunications - ConfTele, Sesimbra, Portugal, Vol. 1, pp. 269 - 273, April, 1999.
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- J. Morgado; Cartaxo, A.; "Relative intensity noise induced by fibre dispersion at zero-dispersion wavelength in nonlinear dispersive singlemode fibres", Proc Conf. on Telecommunications - ConfTele, Sesimbra, Portugal, Vol. 1, pp. 540 - 544, April, 1999.
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- J. Morgado; Cartaxo, A.; "A new measurement technique of optical fiber nonlinearity using the first disp frequency of fiber transfer function", Proc International Conf. on Applications of Photonic Technology, Otawa, Canada, Vol. 3491, pp. 812 - 817, July, 1998.
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- J. Morgado; Cartaxo, A.; "Assessment of laser intensity noise spectrum from rigorous numerical simulation of singlemode laser rate equations", Proc International Conf. on Applications of Photonic Technology, Otawa, Canada, Vol. 3491, pp. 157 - 162, July, 1998.
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- J. Morgado; Cartaxo, A.; "Impact of amplifier spacing on RIN enhancement of IM/DD transmission system", Proc European Conf. on Networks and Optical Communications - NOC, Manchester, United Kingdom, Vol. 1, pp. 220 - 227, July, 1998.
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- J. Morgado; Cartaxo, A.; "Enhancement of laser phase noise to intensity noise conversion by fiber nonlinearity and its impact on the intensity modulation system performance", Proc SPIE - All-optical communication systems: architecture,, Dallas, United States, Vol. 3230, pp. 30 - 41, November, 1997.
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- J. Morgado; Cartaxo, A.; "Impact of relative intensity noise enhancement by fiber nonlinearity on IM-DD transmission system performance", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, S. Francisco, United States, Vol. 1, pp. 295 - 296, November, 1997.
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