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Ioannis Roudas
Researcher at Montana State University
Publications - 116
Citations - 1023
Ioannis Roudas is an academic researcher from Montana State University. The author has contributed to research in topics: Wavelength-division multiplexing & Multi-mode optical fiber. The author has an hindex of 16, co-authored 110 publications receiving 966 citations. Previous affiliations of Ioannis Roudas include University of Patras & Télécom ParisTech.
Papers
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Journal ArticleDOI
10-Gb/s transmission of 1.55-μm directly modulated signal over 100 km of negative dispersion fiber
TL;DR: In this article, the authors reported the largest transmission distance (100 km) for a commercially available 10-Gb/s 1.55-/spl mu/m directly modulated signal over a single fiber link without using any dispersion compensation.
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Demonstration of negative dispersion fibers for DWDM metropolitan area networks
Ioannis Tomkos,Dipakbin Q Chowdhury,Jan Conradi,D. Culverhouse,Karin Ennser,C. Giroux,B. Hallock,T. Kennedy,A. Kruse,Shiva Kumar,N.M. Lascar,Ioannis Roudas,M. Sharma,Richard S. Vodhanel,C.-C. Wang +14 more
TL;DR: In this article, the performance of a nonzero dispersion-optimized fiber with negative dispersion was studied using different types of optical transmitters for both 1310 and 1550-nm wavelength windows and for both 2.5 and 10-Gb/s bit rates.
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Extraction of laser rate equations parameters for representative simulations of metropolitan-area transmission systems and networks
Ioannis Tomkos,Ioannis Roudas,Robert Hesse,Neophytos Antoniades,A. Boskovic,Richard S. Vodhanel +5 more
TL;DR: In this paper, the authors presented procedures for the extraction of laser rate equation parameters using fitting of static and dynamic measurements with simple theoretical expressions, in particular, chirp related parameters are extracted directly through measured chircp and power waveforms.
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Optimal Polarization Demultiplexing for Coherent Optical Communications Systems
Ioannis Roudas,A. Vgenis,C.S. Petrou,Dimitris Toumpakaris,Jason Hurley,Michael Sauer,John D. Downie,Yihong Mauro,S. Raghavan +8 more
TL;DR: In this paper, the optimal design of coherent coherent optical receivers for polarization-multiplexed optical signals, in the absence of polarization mode dispersion (PMD), has been investigated, and it is shown that simultaneous joint estimation of the symbols, over the two received states of polarization, yields optimal performance.
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Performance engineering and topological design of metro WDM optical networks using computer simulation
Neophytos Antoniades,A. Boskovic,Ioannis Tomkos,Nicholas Madamopoulos,M. Lee,Ioannis Roudas,David A. Pastel,Manish Sharma,M.J. Yadlowsky +8 more
TL;DR: The use of computer simulation for topological design and performance engineering of transparent wavelength-division multiplexing metropolitan-area networks and accurate simulation models are presented for each of the performance impairments.