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Digital signal processing for optical coherent transmission systems
Date: 2017/4/9             Browse: 367

Speaker:  Yves JAOUEN
Time:        Apr 12, 3:00 pm – 4:00pm.
Location: Room 1A-200, SIST Building
R&D activities in coherent optical communications studied extensively in the 1980s, have been interrupted for almost 20 years behind the rapid progress in high-capacity WDM systems using EDFAs. The recent development of high-speed digital circuits has offered the possibility of treating the electrical signal in a digital signal processing (DSP) core and retrieving the IQ components of the complex amplitude of received signal. In addition to the higher receiver sensitivity, it ease the use of high spectrally-efficiency multilevel modulation formats and polarization multiplexing techniques. In addition, post-processing functions such as compensation for GVD and PMD can be realized in digital domain.  The first 100Gb/s coherent system has been proposed by Alcatel in 2010 and it is very likely that future generations of systems at 400Gb/s will all be based on this concept. In this presentation, after talking about the evolution of transmission systems technologies, we discuss state-of-the-art of DSP solutions and challenges for the future.
Yves Jaou?n received the Ph.D degree in Physics from Ecole Nationale Supérieure des Télécommunications (ENST), Paris, France in 1993, then his HDR (Resaerch management certificate) in 2003. He had joined ENST (now called TELECOM ParisTech) in the Communications and Electronic department in 1982 where he is currently professor. He is lecturing in the domain of electromagnetic fields, optics and optical communications systems. His present researches include high bit rate coherent optical communication systems including digital signal processing aspects, new characterization techniques for advanced photonic devices, high power fiber lasers, fiber optics and remote sensing. He is author or co-author of more 180 papers in journals and communications.

 SIST-Seminar 17008