Selected publications currently available in electronic form

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Vitae

Books

[1] N. Antoniades, G. Ellinas, and I. Roudas, Eds., WDM systems and networks: Modeling, simulation, design and engineering, Springer, 2012 (ISBN 978-1-4614-1092-8).

Book Chapters

[1] [pdf] I. Roudas, “Coherent optical communications systems,” Ch. 10, in WDM systems and networks: Modeling, simulation, design and engineering, N. Antoniades, G. Ellinas, and I. Roudas, Eds., Springer, 2012 (ISBN 978-1-4614-1092-8).

Archival Journals

  1. [pdf] M. Dadras, I. Roudas, and J. Kwapisz, “Characterization of fiber modal impairments using direct-detection methods,” Optics Communications, Vol. 523, 128735, Nov. 15, 2022.
  2. [pdf]  I. Roudas, J. Kwapisz, and X. Jiang, “Revisiting the nonlinear Gaussian noise model for hybrid fiber spans (Invited paper),” Intelligent and Converged Networks, Vol. 2, No. 1, pp. 30-49, Mar. 2021.
  3. [pdf] I. Roudas, J. Kwapisz, and D. A. Nolan, “Optimal launch states for the measurement of principal modes in optical fibers,” IEEE/OSA J. Lightwave Tech., vol. 36, no. 20, pp. 4915-4931, Oct. 2018.
  4. [pdf] V. Vgenopoulou, M. Song, E. Pincemin, Y. Jaouën, S. Sygletos, and I. Roudas, "Comparison of nonlinear compensation techniques for 400-Gb/s coherent multi-band OFDM super-channels," Applied Sciences, vol. 8, p. 447, Mar. 2018.
  5. [pdf] I. Roudas and J. Kwapisz, “Stokes space representation of modal dispersion," IEEE Phot. J., vol. 9, no. 5, pp. 1–15, Oct. 2017.
  6. [pdf] J. D. Downie, M. Mlejnek, I. Roudas, W. A. Wood, A. Zakharian, J. Hurley, S. Mishra, F. Yaman, S. Zhang, E. Ip, and Y.-K. Huang, “Quasi-single-mode fiber transmission for optical communications (Invited paper)," IEEE J. Select. Top. Quantum Elec., vol. 23, no. 3, pp. 1-12, May-June 2017.
  7. [pdf] S. Makovejs, J. D. Downie, J. E. Hurley, J. S. Clark, I. Roudas, C. C. Roberts, H. B. Matthews, F. Palacios, D. A. Lewis, D. T. Smith, P. G. Diehl, J. J. Johnson, C. R. Towery, and S. Y. Ten, “Towards superior transmission performance in submarine systems: Leveraging ultralow attenuation and large effective area,” IEEE/OSA J. Lightwave Tech., vol. 34, no. 1, pp. 114-120, Jan. 2016.
  8. [pdf] S. Makovejs, C. Behrens, R.-P. Braun, S. Ten, C. Towery, I. Roudas, K. Koreshkov, T. Nath, and A. Gladisch, “Impact of adaptive-rate transponders and fiber attributes on the achievable capacity,” J. Opt. Comm. Netw., vol. 7, no. 3, pp. 172–175, Mar. 2015.
  9. [pdf] M. Mlejnek, I. Roudas, J. D. Downie, N. Kaliteevskiy, and K. Koreshkov, “Coupled-mode theory of multipath interference in quasi-single-mode fibers,” IEEE Phot. J., vol. 7, no. 1, pp. 1–16, Feb. 2015.
  10. [pdf] J. D. Downie, J. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, "Unrepeatered 256 Gb/s PM- 16QAM transmission over up to 304 km with simple system configurations," Opt. Expr., Vol. 22, No. 9, pp. 10256–10261, May 2014.
  11. [pdf] F. Karinou, R. Borkowski, D. Zibar, I. Roudas, K. Vlachos, and I. T. Monroy, "Advanced modulation techniques for high performance computing optical interconnects," IEEE J. Select. Top. Quantum Elec., Vol. 19, No. 2, pp. 324–337, Mar. 2013.
  12. [pdf] I. Roudas, B. R. Hemenway, R. R. Grzybowski, and F. Karinou, "Optimal wavelength-space crossbar switches for supercomputer optical interconnects," Opt. Expr., Vol. 20, No. 18, pp. 20407–20426, Aug. 2012.
  13. [pdf] J. C. Cartledge, J. D. Downie, J. E. Hurley, X. Zhu, and I. Roudas, "Bit error ratio performance of 112 Gb/s PM-QPSK transmission systems," IEEE/OSA J. Lightwave Tech., Vol. 30, No. 10, pp. 1475–1479, May 2012.
  14. [pdf] F. Karinou, I. Roudas, K. G. Vlachos, B. R. Hemenway, and R. R. Grzybowski, “Influence of transmission impairments on the OSMOSIS HPC optical interconnect architecture,” IEEE/OSA J. Lightwave Tech., Vol. 29, No. 21, pp. 3167–3177, Nov. 2011.
  15. [pdf] N. Mantzoukis, C. S. Petrou, A. Vgenis, I. Roudas, T. Kamalakis, and L. Raptis, “Performance comparison of electronic PMD equalizers for coherent PDM QPSK systems,” IEEE/OSA J. Lightwave Tech., Vol. 29, No. 11, pp. 1721–1728, Jun. 2011.
  16. [pdf] N. Mantzoukis, C. S. Petrou, A. Vgenis, T. Kamalakis, I. Roudas, and L. Raptis, “Outage probability due to PMD in coherent PDM QPSK systems with electronic equalization,” IEEE Phot. Tech. Lett., Vol. 22, No. 16, pp. 1247–1249, Aug. 2010.
  17. [pdf] I. Roudas, A. Vgenis, C. S. Petrou, D. Toumpakaris, J. Hurley, M. Sauer, J. Downie, Y. Mauro, and S. Raghavan, “Optimal polarization demultiplexing for coherent optical communications systems,” IEEE/OSA J. Lightwave Tech., Vol. 28, No. 7, pp. 1121–1134, Apr. 2010.
  18. [pdf] A. Vgenis, C. S. Petrou, C. B. Papadias, I. Roudas, and L. Raptis, “Non-singular constant modulus equalizer for PDM-QPSK coherent optical receivers,” IEEE Phot. Tech. Lett., Vol. 22, No. 1, pp. 45–47, Jan. 2010.
  19. [pdf] C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, “Quadrature imbalance compensation for PDM QPSK coherent optical systems,” IEEE Phot. Tech. Lett., Vol. 21, No. 24, pp. 1876 – 1878, Dec. 2009.
  20. [pdf] I. Roudas and N. Antoniades, “Performance outages in CWDM optical networks due to the polarizationdependent gain of semiconductor optical amplifiers,” IEEE Phot. Tech. Lett., Vol. 18, No. 1, pp. 48–50, Jan. 2007.
  21. [pdf] N. Antoniades, K. C. Reichmann, P. P. Iannone, N. J. Frigo, A. M. Levine, and I. Roudas, “The impact of polarization-dependent gain on the design of cascaded semiconductor optical amplifier CWDM systems,” IEEE Phot. Tech. Lett., Vol. 18, No. 20, pp. 2099–2101, Oct. 2006.
  22. [pdf] N. Antoniades, I. Roudas, G. Ellinas, and J. Amin, “Transport metropolitan optical networking: Evolving trends in the architecture design and computer modeling,” IEEE/OSA J. Lightwave Tech., Vol. 22, No. 11, pp. 2653–2670, Nov. 2004.
  23. [pdf] I. Roudas, G. Piech, M. Mlejnek, Y. Zhu, D. Q. Chowdhury and M. Vasilyev, “Coherent frequency-selective polarimeter for polarization mode dispersion monitoring," IEEE/OSA J. Lightwave Tech., Vol. 22, No. 4, pp. 953–967, Apr. 2004.
  24. [pdf] N. Antoniades, N. Madamopoulos, I. Roudas, M. D. Vaughn, R. E. Wagner, “Engineering an 11 Tb/s U.S. mesh metro network: Design and transport performance,” Optical Networks Magazine, Vol. 4, No. 4, pp 92–100, July/August 2003.
  25. [pdf] I. Roudas, N. Antoniades, T. Otani, T. E. Stern, R. E. Wagner, and D. Q. Chowdhury, “Accurate modeling of optical multiplexers/demultiplexers concatenation in multiwavelength optical networks,” IEEE/OSA J. Lightwave Tech., Vol. 20, No. 6, pp. 921–936, Jun. 2002.
  26. [pdf] N. Antoniades, A. Boskovic, I. Tomkos, N. Madamopoulos, M. Lee, I. Roudas, D. Pastel, M. Sharma, and M. J. Yadlowsky, “Performance engineering and topological design of metro WDM optical networks using computer simulation,” IEEE J. Select. Areas Comm., Vol. 20, No. 1, pp. 149–165, Jan. 2002.
  27. [pdf] I. Roudas, N. Antoniades, T. Otani, T. E. Stern, R. E. Wagner, and D. Q. Chowdhury, “Error probability of transparent optical networks with optical multiplexers/demultiplexers,” IEEE Phot. Tech. Lett., Vol. 13, No. 11, pp. 1254–1256, Nov. 2001.
  28. [pdf] I. Tomkos, I. Roudas, R. Hesse, N. Antoniades, A. Boskovic, and R. Vodhanel, “Extraction of laser rate equations parameters for representative simulations of metropolitan area transmission systems and networks,” Optics Comm., Vol. 194, pp. 109–129, Jul. 2001.
  29. [pdf] I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, J. Nakano, and R. Vodhanel, “10-Gb/s transmission of 1.55-μm directly modulated signal over 100 km of negative dispersion fiber,” IEEE Phot. Tech. Lett., Vol. 13, No. 7, pp. 735–737, Jul. 2001.
  30. [pdf] I. Tomkos, D. Chowdhury, J. Conradi, D. Culverhouse, K. Ennser, C. Giroux, B. Hallock, T. Kennedy, A. Kruse, S. Kumar, N. Lascar, I. Roudas, M. Sharma, R. S. Vodhanel, and C.-C. Wang, “Demonstration of negative dispersion fibers for DWDM metropolitan area networks,” IEEE J. Select. Top. Quantum Elec., Vol. 7, No. 3, pp. 439–460, May/Jun. 2001.
  31. [pdf] X. Jiang and I. Roudas, “Asymmetric probability density function of a signal with interferometric crosstalk,” IEEE Phot. Tech. Lett., Vol. 13, No. 2, pp. 160–162, Feb. 2001.
  32. [pdf] I. Roudas, N. Antoniades, D. H. Richards, R. E. Wagner, J. L. Jackel, S. F. Habiby, T. E. Stern, and A. F. Elrefaie, “Wavelength-domain simulation of multiwavelength optical networks (Invited paper),” IEEE J. Select. Top. Quantum Elec., Vol. 6, No. 2, pp. 348–362, Mar. /Apr. 2000.
  33. [pdf] T. Otani, N. Antoniades, I. Roudas, and T. E. Stern, “Cascadability of passband flattened arrayed waveguide grating filters in WDM optical networks,” IEEE Phot. Tech. Lett., Vol. 11, No. 11, pp. 1414– 1416, Nov. 1999.
  34. [pdf] I. Roudas, D. H. Richards, N. Antoniades, J. L. Jackel, and R. E. Wagner, “An efficient simulation model of the Erbium-doped fiber for the study of multiwavelength optical networks (Invited paper),” Opt. Fiber Tech., Vol. 5, No. 4, pp. 363–389, Oct. 1999.
  35. [pdf] N. Antoniades, I. Roudas, R. E. Wagner, T. E. Stern, J. L. Jackel, and D. H. Richards, “Use of wavelength and time-domain simulation to study performance degradations due to linear optical crosstalk in WDM networks,” Opt. Networks and Appl. (TOPS), Vol. 20, pp. 288–293, 1998.
  36. [pdf] N. Antoniades, I. Roudas, R. E. Wagner and S. F. Habiby, “Simulation of ASE noise accumulation in a wavelength add-drop multiplexer cascade,” IEEE Phot. Tech. Lett., Vol. 9, No. 9, pp. 1274–1276, Sept. 1997.
  37. [pdf] I. Roudas, Y. Jaouen, J. Prado, R. Vallet, and P. Gallion, “Recursive simulation models of the semiconductor laser modulation characteristics for accurate performance evaluation of coherent optical CPFSK systems,” IEEE/OSA J. Lightwave Tech., Vol. 13, pp. 2258–2269, Nov. 1995.
  38. [pdf] I. Roudas, Y. Jaouen, J. Prado, R. Vallet, and P. Gallion, “Accurate model of the semiconductor laser nonuniform FM response for the study of coherent optical systems,” IEEE Phot. Tech. Lett., Vol. 6, pp. 1389–1391, Nov. 1994.
  39. [pdf] Y. Jaouen, I. Roudas, and P. Gallion, “Experimental reduction of phase-noise influence for an optical CPFSK system with I. F. filtering,” Microwave and Opt. Tech. Lett., Vol. 6, No. 16, pp. 903–905, Dec. 1993.

Peer-Reviewed Conference Proceedings

  1. [pdf] I. Roudas, E. Fink, and J. Kwapisz, “Mode vector modulation: Optimal signal sets with geometric shaping,” IEEE/OSA Optical Fiber Communication Conference (OFC'23), paper Th3E.4, San Diego, CA, Mar. 2023.
  2. [pdf] J. Kwapisz, I. Roudas, E. Fink, and A. Biswas, “Mode vector modulation direct-detection receivers with linear hardware complexity,” IEEE Photonics Conference (IPC’22), paper TuF1.3, Vancouver, CA, Oct. 2022.
  3. [pdf] J. Kwapisz, I. Roudas, and E. Fink, “Polarimetric direct-detection for spatial superchannels,” Asia Communications and Photonics Conference (ACP’22), paper 367, Shenzhen, China, Nov. 2022.
  4. [pdf] J. Kwapisz, I. Roudas, and E. Fink, “Error probability of mode vector modulation optically-preamplified direct-detection receivers,” IEEE/OSA Conference on Lasers and Electro-Optics (CLEO’22), paper SM4J.1, San Jose, CA, May 2022.
  5. [pdf] E. Fink, J. Kwapisz, and  I. Roudas, “Optimized SVM constellations for SDM fibers,” IEEE Photonics Conference (IPC’21), paper TuE3.2, Oct. 2021.
  6. [pdf] I. Roudas, J. Kwapisz, and E. Fink, “Mode vector modulation,” European Conference on Optical Communication (ECOC’21), paper Tu2D.5, Bordeaux, France, Sept. 2021.
  7. [pdf] I. Roudas, X. Jiang, and J. Kwapisz, "Nonlinear GN model for coherent optical communications systems with hybrid fiber spans (Invited paper)," Wireless and Optical Communications Conference (WOCC), Newark, NJ, May 2020.
  8. [pdf] X. Jiang,  I. Roudas, L. Miranda, and S. Ezquerro, “Hybrid fiber links using quasi-single-mode fibers,” IEEE Photonics Conference (IPC’19), paper MC2.2, San Antonio, TX, Sept. 2019.
  9. [pdf] I. Roudas, X. Jiang, and L. Miranda, "Modeling long-haul optical networks with quasi-single-mode fibers (Invited paper)," Optical Network Design and Modeling (ONDM’19), Athens, Greece, May 2019.
  10. [pdf] V. Vgenopoulou, N. P. Diamantopoulos, I. Roudas, and S. Sygletos, "MIMO nonlinear equalizer based on inverse Volterra series transfer function for coherent SDM systems," IEEE/OSA Optical Fiber Communication Conference (OFC'19), paper Th2A.50, San Diego, CA, Mar. 2019.
  11. [pdf] M. Dadras, I. Roudas, and J. Kwapisz, "Mode selection for measuring modal dispersion in Stokes space,” IEEE Photonics Conference (IPC’18), Reston, VA, Oct. 2018.
  12. [pdf] I. Roudas and J. Kwapisz, "Optimization of the mode-dependent signal delay method for the measurement of modal dispersion,” IEEEPhotonics Society Summer Topicals, Waikoloa, Hawaii, Jul. 2018.
  13. [pdf] I. Roudas and J. Kwapisz, "Accurate modal dispersion measurements using maximally-orthogonal Stokes vectors," IEEE/OSA Conference on Lasers and Electro-Optics (CLEO’18), paper SM3C.3, San Jose, CA, May 2018. 
  14. [pdf] I. Roudas, “Modal dispersion characterization of multimode fibers,” IEEE Photonics Conference (IPC’17),  paper WD1.1, Lake Buena Vista, FL, Oct. 2017.
  15. [pdf] L. Miranda, I. Roudas, J. D. Downie, and M. Mlejnek, “Performance of coherent optical communication systems with hybrid fiber spans,” European Conference on Optical Communication (ECOC’17), paper P2.SC6.18, Gothenburg, Sweden, Sept. 2017.
  16. [pdf] I. Roudas, “Modeling of modal dispersion in multimode and multicore optical fibers (Invited paper),” Wireless and Optical Communication Conference (WOCC), Newark, NJ, 2017.
  17. [pdf] V. Vgenopoulou, M. S. Erkılınç, R. I. Killey, Y. Jaouën, I. Roudas, and I. Tomkos, “Comparison of multichannel nonlinear equalization using inverse Volterra series versus digital backpropagation 400 Gb/s coherent superchannel,” IEE European Conference on Optical Communication (ECOC'16), Düsseldorf, Germany, Sept. 2016.
  18. [pdf] J. D. Downie, M. Mlejnek, W. Wood, J. Hurley, A. Zakharian, I. Roudas, S. Mishra, F. Yaman, S. Zhang, E. Ip, and Y. Huang, "Quasi-single-mode transmission for long-haul and submarine optical communications," IEEE/OSA Conference on Lasers and Electro-Optics (CLEO’16), paper SM4F.6, San Jose, CA, Jun. 2016.
  19. [pdf] J. D. Downie, W. A. Wood, J. Hurley, M. Mlejnek, I. Roudas, A. Zakharian, S. Mishra, E. Ip, F. Yaman, and S. Zhang, “Quasi-single-mode fiber transmission for submarine systems,” SubOptic 2016, Dubai, United Arab Emirates, Apr. 2016.
  20. [pdf] X. Chen, J. Hurley, J. Stone, J. Downie, I. Roudas, D. Coleman, and M.-J. Li, “Universal fiber for both short-reach VCSEL transmission at 850 nm and single-mode transmission at 1310 nm,” IEEE/OSA Optical Fiber Communication Conference (OFC'16), paper Th4E.4, Anaheim, CA, Mar. 2016.
  21. [pdf] J. D. Downie, J. Hurley, I. Roudas, K. Koreshkov, and M. Mlejnek, “MPI measurements of quasi-single-mode fibers,” IEEE Photonics Conference, Reston, VA, Oct. 2015.
  22. [pdf] M. Song, E. Pincemin, V. Vgenopoulou, I. Roudas, E.-M. Ahmoud, and Y. Jaouen, “Transmission performances of 400 Gbps coherent 16-QAM multi-band OFDM adopting nonlinear mitigation techniques,” Tyrrhenian International Workshop on Digital Communications (TIWDC 2015) - Fiber Nonlinearities in Coherent Optical Communication, Photonics in Switching, Florence, Italy, Sept. 2015.
  23. [pdf] V. Vgenopoulou, A. Amari, M. Song, E. Pincemin, I. Roudas, and Y. Jaouen, “Volterra-based nonlinear compensation in 400 Gb/s WDM multiband coherent optical OFDM systems,” Asia Communications and Photonics Conference (ACP), paper AF1E.4, Shanghai, China, Nov. 2014.
  24. [pdf] I. Roudas, N. Kaliteevskiy, P. Sterlingov, and W. A. Wood, “Comparison of analytical models for the nonlinear noise in dispersive coherent optical communications systems," IEEE Photonics Conference, paper MG3.4, Bellevue, WA, Sept. 2013.
  25. [pdf] I. Roudas, B. R. Hemenway, M. S. Whiting, and R. R. Grzybowski, "Differential signaling for low optical energy consumption in datacom optical interconnects," IEEE Optical Interconnects Conference, paper WC3, Santa Fe, NM, May 2013.
  26. [pdf] W. A. Wood, S. Y. Ten, I. Roudas, P. M. Sterlingov, N. A. Kaliteevskiy, J. D. Downie, and M. Rukosueva, "Relative importance of optical fiber effective area and attenuation in span length optimization of ultralong 100Gb/s PM-QPSK systems," SubOptic, paper Tu1C.3, Paris, France, Apr. 2013.
  27. [pdf] F. Karinou, R. Rodes, K. Prince, I. Roudas, and I. T. Monroy, "IM/DD vs. 4-PAM using a 1550-nm VCSEL over short-range SMF/MMF links for optical interconnects," IEEE/OSA Optical Fiber Communication Conference (OFC'13), paper OW4A.2, Anaheim, CA, Mar. 2013.
  28. [pdf] F. Karinou, R. Borkowski, D. Zibar, I. Roudas, and I. T. Monroy, "Coherent 40 Gb/s SP-16QAM and 80 Gb/s PDM-16QAM in an optimal supercomputer optical switch fabric," IEEE/OSA Optical Fiber Communication Conference (OFC'13), paper JTh2A.77, Anaheim, CA, Mar. 2013.
  29. [pdf] F. Karinou, R. Borkowski, K. Prince, I. Roudas, I. T. Monroy, and K. Vlachos, "Performance evaluation of a SOA-based rack-to-rack switch for optical interconnects exploiting NRZ-DPSK," IEE European Conference on Optical Communication (ECOC'12), paper P3.05, Amsterdam, Netherlands, Sept. 2012.
  30. [pdf] G. A. Rodes, J. J. V. Olmos, F. Karinou, I. Roudas, L. Deng, X. Pang, and , I. T. Monroy, "Optical switching for dynamic distribution of wireless-over-fiber signals," Optical Network Design and Modeling (ONDM), Colchester, UK, Apr. 2012.
  31. [pdf] I. Roudas, “Constrained LMS phase noise estimation algorithm for coherent optical M-QAM intradyne receivers,” IEEE/OSA Optical Fiber Communication Conference (OFC'12), paper JW2A.62, Los Angeles, CA, Mar. 2012.
  32. [pdf] J. C. Cartledge, J. D. Downie, J. E. Hurley, A. S. Karar, J. H. Ke, I. Roudas, and K. Roberts, “Performance of PM QPSK and PM 16-QAM coherent optical fiber communication systems,” SPIE Photonics West, Vol. 8284, pp. 82840C–82840C-8, 2012.
  33. [pdf] X. Zhu, I. Roudas, and J. C. Cartledge, “Error probability estimation for coherent optical PDM-QPSK communications systems,” Proc. SPIE, Vol. 8309, p. 830939, Shanghai, China, Nov. 2011.
  34. [pdf] F. Karinou, I. Roudas, K. Vlachos, B. R. Hemenway, and R. R. Grzybowski, “Performance assessment of an optimized optical supercomputer interconnect architecture,” IEEE/OSA Optical Fiber Communication Conference (OFC'11), paper JWA86, Los Angeles, CA, Mar. 2011.
  35. [pdf] N. Mantzoukis, A. Vgenis, C. S. Petrou, I. Roudas, T. Kamalakis, and L. Raptis, “Design guidelines for electronic PMD equalizers used in coherent PDM QPSK systems,” IEE European Conference on Optical Communication (ECOC'10), paper P4.16, Torino, Italy, Sept. 2010.
  36. [pdf] F. Karinou, I. Roudas, K. Vlachos, C. S. Petrou, Α. Vgenis, and B. R. Hemenway, “Wavelength-space permutation switch with coherent PDM QPSK transmission for supercomputer optical interconnects,” IEEE/OSA Optical Fiber Communication Conference (OFC'10), paper JWA62, San Diego, CA, Mar. 2010.
  37. [pdf] I. Roudas, A. Vgenis, C. S. Petrou, Y. Mauro, S. Raghavan, and L. Raptis, “Constrained polarization demultiplexing for coherent optical receivers,” IEEE/OSA LEOS Annual Meeting (LEOS'09), paper WE2, Belek-Antalya, Turkey, Oct. 2009.
  38. [pdf] C. S. Petrou, A. Vgenis, I. Roudas, F. Karinou, K. Vlachos, and L. Raptis, “Quadrature imbalance compensation algorithms for coherent PDM QPSK systems,” IEEE/OSA LEOS Annual Meeting (LEOS'09), paper ThE3, Belek-Antalya, Turkey, Oct. 2009.
  39. [pdf] N. Mantzoukis, C. S. Petrou, A. Vgenis, I. Roudas, and T. Kamalakis, “Electronic equalization of polarization mode dispersion in coherent POL-MUX QPSK systems,” IEE European Conference on Optical Communication (ECOC'09), paper P4.15, Vienna, Austria, Sept. 2009.
  40. [pdf] N. Mantzoukis, T. Kamalakis, I. Roudas, and L. Raptis, “Evaluation of polarization mode dispersion statistics using the multicanonical Monte Carlo method,” Pαnhellenic Conference on Electronics and Telecommunications (PACET’09), paper 41, Patras, Greece, Mar. 2009.
  41. [pdf] C. S. Petrou, A. Vgenis, A. Kiourti, I. Roudas, J. Hurley, M. Sauer, J. Downie, Y. Mauro, and S. Raghavan, “Impact of transmitter and receiver imperfections on the performance of coherent optical QPSK communication systems,” IEEE/OSA LEOS Annual Meeting (LEOS'08), paper TuFF3, Newport Beach, CA, Nov. 2008.
  42. [pdf] A. Vgenis, C. S. Petrou, I. Roudas, I. Chochliouros, G. Agapiou, and T. Doukoglou, “Adaptive electronic equalization for non-ideal optical coherent receivers,” Symposium on Communication Systems, Networks and Digital Signal Processing (CNDSP’08), pp. 349–353, Graz, Austria, Jul. 2008.
  43. [pdf] V. Vgenopoulou, I. Roudas, K. P. Ho, I. Chochliouros, G. Agapiou, and T. Doukoglou, “Asymptotic approximation of the probability density function of the nonlinear phase noise using the method of steepest descent,” Advanced International Conference on Telecommunications (AICT’08), Athens, Greece, Jun. 2008.
  44. [pdf] C. S. Petrou, I. Roudas, and L. Raptis, “Impact of receiver imperfections on the performance of coherent intradyne DQPSK receivers,” IEEE/OSA Conference on Lasers and Electro-optics (CLEO'08), paper CThJJ1, San Jose, CA, May 2008.
  45. [pdf] I. Roudas, B. R. Hemenway, and R. R. Grzybowski, “Optimization of a supercomputer optical interconnect architecture,” IEEE/OSA LEOS Annual Meeting (LEOS'07), paper ThG3, Orlando, FL, Oct. 2007.
  46. [pdf] I. Roudas, M. Sauer, J. Hurley, Y. Mauro, and S. Raghavan, “Compensation of coherent DQPSK receiver imperfections,” IEEE/OSA LEOS Summer Topicals, paper MA3.4, Portland, OR, Jul. 2007.
  47. [pdf] I. Roudas and N. Antoniades, “Scalability limitations of optical access and metro networks due to the polarization-dependent gain of semiconductor optical amplifiers (Invited paper),” SPIE Optics East (OE'06), paper 6388–22, Boston, MA, Oct. 2006.
  48. [pdf] I. Roudas, N. Antoniades, and J. Amin, “Trends in the architectural design and computer modeling of optical metropolitan area networks (Invited paper),” IEEE/OSA Optical Fiber Communication Conference (OFC'04), paper WG4, Los Angeles, CA, Feb. 2004.
  49. [pdf] I. Roudas, G. Piech, M. Mlejnek, Y. Zhu, and D. Q. Chowdhury, “Coherent heterodyne frequencyselective polarimeter for error-signal generation in higher-order PMD compensators,” IEEE/OSA Optical Fiber Communication Conference (OFC'02), paper WQ2, Anaheim, CA, Mar. 2002.
  50. [pdf] N. Madamopoulos, N. Antoniades, I. Roudas, M. D. Vaughn, and R. E. Wagner, “Design, transport performance study and engineering of a 11 Tb/s U.S. mesh metro network,” IEEE/OSA Optical Fiber Communication Conference (OFC'02), paper ThH6, Anaheim, CA, Mar. 2002.
  51. [pdf] I. Roudas, N. M. Lascar, A. E. Kruse, B. S. Hallock, D. Q. Chowdhury, R. S. Vodhanel, N. Antoniades, I. Tomkos, and M. Sharma, “10 Gb/s uncompensated transmission in transparent optical metropolitan area networks using electroabsorption modulators over negative dispersion NZDSF,” IEEE/OSA Conference on Lasers and Electro-optics (CLEO'01), paper CFA3, Baltimore, MD, May 2001.
  52. [pdf] I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic, and R. Vodhanel, “Transmission of 1550 nm 10 Gb/s directly modulated signal over 100 km of negative dispersion fiber without any dispersion compensation,” IEEE/OSA Optical Fiber Communication Conference (OFC'01), paper TuU6, Anaheim, CA, Mar. 2001.
  53. [pdf] I. Roudas and X. Jiang, “Accurate modeling of incoherent homodyne crosstalk in optically amplified systems,” IEEE Lasers and Electrooptics Society Annual Meeting (LEOS'00), paper MK2, Rio Grande, Puerto Rico, Nov. 2000.
  54. [pdf] I. Tomkos, I. Roudas, A. Boskovic, N. Antoniades, R. Hesse, and R.Vodhanel, “Measurements of laser rate equation parameters for simulating the performance of directly modulated 2.5 Gb/s metro area transmission systems and networks,” IEEE Lasers and Electrooptics Society Annual Meeting (LEOS'00), paper ThB3, Rio Grande, Puerto Rico, Nov. 2000.
  55. [pdf] C.-C. Wang, I. Roudas, I. Tomkos, M. Sharma, and R. S. Vodhanel, “Negative Dispersion Fibers for Uncompensated Metropolitan Networks,” IEE European Conference on Optical Communication (ECOC'00), paper 2.4.3, Munich, Germany, Sep. 2000.
  56. [pdf] M. Sharma, I. Roudas, I. Tomkos, B. S. Hallock, T. D. Kennedy, R. S. Vodhanel, S. Kumar, C. B. Giroux, D. Q. Chowdhury, and J. Conradi, “Enhancing the performance of directly modulated laser systems using negative dispersion fiber for Metro applications,” National Fiber Optic Engineers Conference (NFOEC'00), Vol. 1, pp. 27–34, Denver, CO, Aug. 2000.
  57. [pdf] Ν. Antoniades, A. Boscovic, J.-K. Rhee, J. Downie, D. Pastel, I. Tomkos, I. Roudas, N. Madamopoulos, M. Yadlowsky, “Engineering the performance of DWDM networks,” National Fiber Optic Engineers Conference (NFOEC'00), Vol. 1, pp. 204–211, Denver, CO, Aug. 2000.
  58. [pdf] X. Jiang, I. Roudas, and K. Jepsen, “Asymmetric probability density function of a signal with interferometric crosstalk in optically amplified systems,” IEEE/OSA Optical Fiber Communication Conference (OFC'00), paper ThJ4, Baltimore, MD, Mar. 2000.
  59. [pdf] D. Richards, J. Jackel, M. Goodman, I. Roudas, R. Wagner, and N. Antoniades, “Optical simulations for experimental networks: lessons from MONET,” SPIE Photonics East, paper 3843–16, Boston, MA, Sept. 1999.
  60. [pdf] I. Roudas, N. Antoniades, D. H. Richards, J. L. Jackel, and R. E. Wagner, “Wavelength-domain simulation: an efficient technique for the study of the transport layer in multiwavelength optical networks (Invited paper),” Integr. Phot. Research Topical Meeting (IPR'99), paper RTuJ2, Santa Barbara, CA, Jul. 1999.
  61. [pdf] I. Roudas, J. L. Jackel, D. H. Richards, N. Antoniades, and J. E. Baran, “Transient effects in wavelengthadd- drop multiplexer chains,” IEEE/OSA Optical Fiber Communication Conference (OFC'99), paper TuR2, San Diego, CA, Feb. 1999.
  62. [pdf] D. H. Richards, J. L. Jackel, I. Roudas, W. Xin, N. Antoniades, and M. Ali, “Method for detecting fiber cuts in a WDM ring with saturated EDFAs,” IEEE/OSA Optical Fiber Communication Conference (OFC'99), paper FJ4, San Diego, CA, Feb. 1999.
  63. [pdf] N. Antoniades, I. Roudas, R. E. Wagner, T. E. Stern, J. L. Jackel, and D. H. Richards, “Evaluating the reach of multiwavelength optical networks (Invited paper),” IEEE Lasers and Electrooptics Society Annual Meeting (LEOS'98), paper WR1, pp. 284–285, Orlando, FL, Dec. 1998.
  64. [pdf] N. Antoniades, I. Roudas, R. E. Wagner, J. L. Jackel, and T. E. Stern, “Crosstalk performance of a wavelength selective cross-connect mesh topology,” IEEE/OSA Optical Fiber Communication Conference (OFC'98), paper TuJ4, San Jose, CA, Feb. 1998.
  65. [pdf] I. Roudas, N. Antoniades, R. E. Wagner and L. D. Garrett, “Influence of realistic optical filter characteristics on the performance of multiwavelength optical networks,” IEEE Lasers and Electrooptics Society Annual Meeting (LEOS'97), paper ThDD2, pp. 542–543, San Francisco, CA, November 1997.
  66. [pdf] I. Roudas, N. Antoniades, R. E. Wagner, S. F. Habiby, and T. E. Stern, “Influence of filtered ASE noise and optical filter shape on the performance of WADM cascade networks,” IEE European Conference on Optical Communication (ECOC'97), Vol. 2, pp. 143–146, Edinburgh, UK, Sept. 1997.
  67. [pdf] N. Antoniades, I. Roudas, R. E. Wagner, and S. F. Habiby, “Frequency-domain simulation of a chain of 50 wavelength add-drop multiplexers,” IEEE/OSA Conference on Lasers and Electro-optics (CLEO'97), paper CFI3, pp. 495–496, Baltimore, MD, May 1997.
  68. [pdf] Ι. Roudas, Y. Jaouen and P. Gallion, “Post-detection filtering in heterodyne differential receivers,” IEEE/OSA Conference on Lasers and Electro-optics (CLEO'95), Baltimore, MD, May 1995.
  69. [pdf] I. Roudas, J. Holtz, P. Mauratille, G. Debarge, Y. Jaouen, and P. Gallion, “Numerical resolution of the Fokker-Planck equation for the study of phase noise filtering in coherent optical systems,” SPIE Optics East (OE/LASE'95), Session 2399, San Jose, CA, Feb. 1995.
  70. [pdf] I. Roudas, Y. Jaouen and P. Gallion, “Optimum IF filter bandwidth for coherent optical heterodyne CPFSK differential receivers,” IEEE/OSA Conference on Lasers and Electro-optics (CLEO'94), Session CThI, paper CThI33, Anaheim, CA, May 1994.
  71. [pdf] Ι. Roudas, Y. Jaouen and P. Gallion, “Computer modeling and optimization of coherent optical systems,” IEEE Workshop on computer aided modeling, analysis and design (CAMAD'94), Session 5, Talk 5.2, Princeton, NJ, Apr. 1994.
  72. [pdf] I. Roudas, Y. Jaouen, R. Vallet, J. Prado, and P. Gallion, “Computer modeling of the nonuniform FM transfer function of semiconductor lasers for the study of coherent optical systems,” SPIE Optics East (OE/LASE'94), Session 2146, Los Angeles, CA, Jan. 1994.
  73. [pdf] Y. Jaouen, I. Roudas, and P. Gallion, “Etude expérimentale de l'influence du filtrage moyenne fréquence sur les performances d'un système optique cohérent de type CPFSK,” Treizièmes Journées Nationales d'Optique Guidée (JNOG'93), paper 38, Marseille, France, May 1993.
  74. [pdf] I. Roudas, Y. Jaouen, and P. Gallion, “Resolution de l'équation de Fokker-Planck pour l'étude du filtrage du bruit de phase dans les systèmes optiques cohérents,” Treizièmes Journées Nationales d'Optique Guidée (JNOG'93), paper 62, Marseille, France, May 1993.
  75. [pdf] I. Roudas, Y. Jaouen, and P. Gallion, “Evaluation des performances d'un système optique cohérent CPFSK a partir du simulateur TOPSIM,” Douzièmes Journées Nationales d'Optique Guidée (JNOG'92), Session 4, paper 27, Paris, France, Jan. 1992.