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We compare two all-optical data-center interconnects, POPI (Passive Optical Pod Interconnect) and POITR (Passive Optical Interconnect at Top of the Rack). We show that POPI is better in terms of link power budget and thus more suited to an increase of modulation format complexity. An extension of this solution is proposed by the use C and L transmission… (More)
We analyze the recently proposed Extended Passive-Optical-Pod Interconnect (e-POPI), designed for small energy-aware data centers, including server-turn-on/off strategies. We investigate several options to increase up to 56 Gbit/s the bit rate of e-POPI's links by the use of Pulse Amplitude Modulation (4 or 8 PAM) considering three types of receivers… (More)
We compare by numerical simulation several options to increase up to 112 Gbit/s the bit rate used for intradata-center interconnections relying on the recently proposed Passive Optical Pod Interconnect (POPI) architecture, itself derived from the TWIN (Time-Wavelength-Interleaved Network) concept. The motivation for such bit rate is the need to migrate full… (More)
With the emergence of the Future Internet and the dawning of new IT models such as cloud computing, the usage of data centers (DC), and consequently their power consumption, increase dramatically. Besides the ecological impact, the energy consumption is a predominant criterion for DC providers since it determines the daily cost of their infrastructure. As a… (More)
Titre de la thèse : Étude théorique et expérimentale des impulsions optiques générées par un amplicateur optique à semi-conducteurs (SOA) en blocage de modes Soutenue le 17 Mars 2009 devant la commission d'examen :
We present the dimensioning of an optical packet switching network for energy-efficient intradata- center connections. Our approach relies on one or two interconnection stages derived from the timewavelength- interleaved network concept and relying on fast wavelength-tunable lasers.We compare several options by numerical simulation to increase the bit rate… (More)
Wang's nonlinear companding scheme is investigated here for the first time for CO-OFDM transmissions. As a result of an optimal predistortion function design, we demonstrate a 3 dB BER advantage for a system employing a Semiconductor Optical Amplifier (SOA).