Super High-capacity Optical Transmission Systems

(SHOTS)


 
            National project POSC/EEA-CPS/56959/2004, started on 1st April 2005 and ended on 31st December 2007.
 
 

Participating institutions

            Instituto de Telecomunicações, Lisbon Pole,
            Siemens SA Portugal.
 
 

Support

            POS_Conhecimento e Fundação para a Ciência e Tecnologia (FCT), Portugal, and Siemens SA Portugal.
 
 

Research team

 

 

Description

The work to be undertaken is concerned with the performance analysis of very high-capacity optical transmission systems based on dense wavelength division multiplexing (DWDM) systems.

The objectives of the project are:


        1. Investigation of advanced signalling formats for UDWDM systems, namely

»» new signalling formats

»» optically filtered SSB signalling formats

»» DPSK-related signalling formats

 

       2. Investigation of nonlinear fibre limitations in DWDM systems, namely

»» impact of cross-phase modulation, four-wave mixing and stimulated Raman scattering on DWDM transmission systems performance

»» development of tool for assessment of nonlinear fibre limitations in DWDM systems

 

 


Contributions

 

 

Book Chapter

2007

 

D. Fonseca, A. Cartaxo, P. Monteiro, “Topics on OSSB modulation for 40 Gb/s transmission systems”, in “Advanced Technologies for High-Speed Optical Communications”, ed. Lei Xu, Research Signpost, 2007, pp. 207-246, ISBN: 81-308-0171-X.

 

 

 

 

 


Papers in Journals

2007

 

N. Pavlovic, A. Cartaxo, “Influence of tight optical filtering on long-haul transmission performance of several advanced signaling formats”, accepted for publication in IEEE/OSA Journal of Lightwave Technology, in January 2008.

 

J. Morgado, A. Cartaxo, “Laser optimization guidelines for dispersion supported transmission systems operating at arbitrary bit rates”, accepted for publication in IEEE/OSA Journal of Lightwave Technology, in October 2007.

 

D. Fonseca, R. Luís, A. Cartaxo, P. Monteiro, “Near pseudo-linear regime in 10 Gb/s single sideband-alternate mark inversion systems using electrical dispersion pre-compensation”, IEEE Photonics Technology Letters, vol. 19, nº 15, 1 August 2007, pp. 1127-1129.

 

D. Fonseca, A. Cartaxo, P. Monteiro, “Influence of the extinction ratio on the intrachannel nonlinear distortion of 40 Gb/s return-to-zero transmission systems over standard fiber”, IEEE/OSA Journal of Lightwave Technology, vol. 25, nº 6, June 2007, pp. 1447-1457.

 

J. Rebola, A. Cartaxo, “Accuracy of Gaussian approach for the performance evaluation of direct-detection receiver with partially polarized noise”, Fiber and Integrated Optics, vol. 26, nº 3, April 2007, pp. 135-146.

 

D. Fonseca, A. Cartaxo, P. Monteiro, “Comparison and optimisation of optical single sideband transmitters”, IET Proceedings, Optoelectronics, vol. 1, nº 2, April 2007, pp. 82-90.

 

 

N. Pavlovic, A. Cartaxo, “Optimization of single-sideband DCS-RZ format for long-haul 43-Gbit/s/channel ultradense WDM systems”, IEEE/OSA Journal of Lightwave Technology, vol. 25, nº 2, February 2007, pp. 481-489.

2006

 

P. Charrua, A. Cartaxo, “Performance analysis of AMI-RZ single-sideband signals in 40 Gbit/s transmission systems”, IEE Proceedings, Part J – Optoelectronics, vol. 153, nº3, June 2006, pp. 109-118.

2005

 

R. Luís, A. Cartaxo, “Impact of dispersion slope on XPM-degradation in WDM systems with high channel count”, IEEE/OSA Journal of Lightwave Technology, vol. 23, nº11, November 2005, pp. 3764-3772.

 

 


Communications in International Meetings

2007

 

N. Pavlovic, A. Cartaxo, “Dependence of optimum residual dispersion per span on the number of spans for various signaling formats over 43 Gbit/s SSMF transmission system”, 2007 SBMO/IEEE International Microwave & Optoelectronics Conference – IMOC, Salvador, Brazil, 29 October -  1 November 2007, pp. 653-657.

 

T. Alves, A. Cartaxo, “Dispersion map design for XPM suppression in NRZ 10 Gbit/s pre-compensated WDM links using standard-fibre and 50 GHz of channel spacing”, 2007 SBMO/IEEE International Microwave & Optoelectronics Conference – IMOC, Salvador, Brazil, 29 October -  1 November 2007, pp. 648-652.

 

J. Morgado, A. Cartaxo, “Influence of laser chirp and parasitics on optimized dispersion-managed directly modulated systems operating at 10 Gbit/s”, 2007 SBMO/IEEE International Microwave & Optoelectronics Conference – IMOC, Salvador, Brazil, 29 October - 1 November 2007, pp. 531-535.

 

N. Costa, A. Cartaxo, “BER estimation in DPSK systems using the differential phase Q taking into account the electrical filtering influence”, 2007 SBMO/IEEE International Microwave & Optoelectronics Conference – IMOC, Salvador, Brazil, 29 October - 1 November 2007, pp. 337-340.

 

N. Costa, A. Cartaxo, “Novel approach for BER evaluation of DQPSK systems using differential phase Q”, IEEE LEOS 20th Annual Meeting 2007 (LEOS 2007), Lake Buena Vista, Florida, U. S. A., 21-25 October 2007, paper MP 3, pp. 143-144.

 

N. Costa, T. Alves, A. Cartaxo, “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”, International Conf. on Transparent Networks – ICTON, Roma, Italy, 1-5 July 2007, vol. 1, paper Tu.C1.6, pp. 151-154.

 

T. Alves, N. Costa, A. Cartaxo, “Dependence of XPM degradation on the dispersion map for 10 Gbit/s WDM links over standar-fibre employing duobinary format”, International Conf. on Transparent Networks – ICTON, Roma, Italy, 1-5 July 2007, vol. 1, paper Tu.A1.1, pp. 79-82.

 

A. Cartaxo, D. Fonseca, P. Monteiro, “Modulation formats for upgrading MANs to 40 Gb/s per channel”, (invited communication) International Conf. on Transparent Networks – ICTON, Roma, Italy, 1-5 July 2007, vol. 1, paper Mo.B1.3, pp. 16-19.

 

N. Costa, T. Alves, A. Cartaxo, “Dispersion map optimization for XPM-limited 10 Gbit/s NRZ-IM-DD links”, IASTED International Conference on Wireless and Optical Communications (WOC 2007), Montreal, Canada, 30 May 2007 - 1 June 2007, paper 565-126, pp. 565-126, pp. 274-279.

 

T. Alves, N. Costa, A. Cartaxo, “Influence of DCM nonlinearity on the XPM degradation in 10 Gbit/s dispersion managed NRZ-IM-DD links”, IASTED International Conference on Wireless and Optical Communication (WOC 2007), Montreal, Canada, 30 May 2007 - 1 June 2007, paper 565-129, pp. 221-224.

2006

 

A. Cartaxo, N. Pavlovic, T. Dias, “Nonlinearity and dispersion tolerances of SSB-DCS-RZ, SSB-AMI-RZ, and BL-PSBT in long-haul UDWDM transmission systems”, VI International Telecommunications Symposium (ITS 2006), Fortaleza-CE, Brasil, 3-6 September 2006, pp. 276-281.

 

T. Dias, A. Cartaxo, “Comparison of performance of SSB-AMI-RZ formats in long-haul 40 Gbit/s/channel UDWDM transmission systems”, IEEE 8th International Conference on Transparent Optical Networks (ICTON) 2006, Nottingham, United Kingdom, 18-22 June 2006, paper Th.B1.5, pp. 281-284.

2005

 

N. Pavlovic, A. Cartaxo, “Optimized bandwidth-limited duobinary coding format for ultra dense WDM systems”, IEEE 7th International Conference on Transparent Optical Networks (ICTON) 2005, Barcelona, Spain, 3-7 July 2005, pp. 385-388.

 

J. Rebola, A. Cartaxo, “Simplified approach for the assessment of the performance of optical systems with polarisation dependent loss”, IEEE 7th International Conference on Transparent Optical Networks (ICTON) 2005, Barcelona, Spain, 3-7 July 2005, pp. 189-192.

 

Communications in National Meetings

2007

 

T. Alves, A. Cartaxo, “Impact of dispersion compensating fibre nonlinearity on the optimum dispersion map due to XPM in 10 Gbit/s WDM links”, 6th Conference on Telecommunications, Peniche, 9-11 May 2007, pp. 581-584.

 

S. Santos, A. Cartaxo, “Comparison of power depletion and waveform distortion limitations due to inter-channel stimulated Raman scattering effect in WDM links”, 6th Conference on Telecommunications, Peniche, 9-11 May 2007, pp. 565-568.

 

N. Costa, A. Cartaxo, “Analysis of optimal dispersion map due to XPM in 10 Gbit/s WDM links with standard singlemode fibres”, 6th Conference on Telecommunications, Peniche, 9-11 May 2007, pp. 537-540.

2005

 

N. Pavlovic, A. Cartaxo, “First results on a novel coding format for ultra dense WDM systems at 40 Gbit/s/channel”, III Symposium on Enabling Optical Networks, Aveiro, 27 June 2005, pp. 99-102.

 

E. Pereira, P. Garcia, A. Cartaxo, “Optimization of MUX and DEMUX bandwidths for 40 Gb/s/channel ultra dense WDM NRZ-DPSK transmission systems”, III Symposium on Enabling Optical Networks, Aveiro, 27 June 2005, pp. 90-94.

 

J. Rebola, A. Cartaxo, “An overview of performance assessment of optical receivers with partially polarised noise”, III Symposium on Enabling Optical Networks, Aveiro, 27 June 2005, pp. 36-38.

 

Ph. D. Thesis

2008

 

“Signaling formats for ultra dense wavelength division multiplexing systems”, by Nataša Bratislav Pavlović.

 

M. Sc. Theses

2007

 

“Limitations due to stimulated Raman scattering in DWDM systems”, in portuguese, by Sérgio Martins dos Santos, November 2007.

 

“Limitations due to four-wave mixing in DWDM systems with  dispersion management”, in portuguese, by Ana Filipa Dias Coelho Mendes Guardado, November 2007.

 

Graduation Final Projects

2006

 

“Projecto de ligações WDM limitadas pela emissão estimulada de Raman”, in portuguese, by Sérgio Martins dos Santos and Ana Filipa Dias Coelho Mendes Guardado, 2006.

 

“Projecto de ligações WDM limitadas pela modulação de fase cruzada”, in portuguese, by Tiago Manuel Ferreira Alves and Nelson Manuel Simões da Costa, 2006.

 

“Sistemas WDM de elevada densidade com sinalização AMI-RZ de banda lateral única”, in portuguese, by Tiago Miguel Rosa Dias, 2006.

2005

 

“Sistemas WDM de elevada densidade com modulação DPSK”, in portuguese, by Elói Teixeira Pereira and Pedro Maria da Silva Garcia, 2005.

 

 

Last update on 29 January 2008