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We propose an optical node architecture, based on PPLN, simultaneously supporting optical multicast and frequency conversion.Multicasting with two tunable conversions is demonstrated with low power consumption in a flex-grid testbed with 224 Gb/s PM-16QAM signal.
This paper demonstrates a software-defined code-adaptive Tb/s based on time-frequency packing technique. Enhanced OpenFlow architecture is proposed to set transmission parameters (e.g., code rate) of 1Tb/s. Several transmission reach values are achieved with adaptive code rate.
Multiformat wavelength swapping is demonstrated. The operation is achieved at packet level through second order nonlinearities in PPLN waveguide. The experimental validation is provided by BER measurements using 40Gb/s DQPSK and 10Gb/s OOK signals.
Polarization independent multicasting is demonstrated in a PPLN. 3-fold and 2-fold wavelength conversion of a 112Gb/s 16QAM and a 224Gb/s PM-16QAM signal respectively, is experimentally achieved with penalties within 2.9dB at BER=10-3.
Emerging services, such as high-definition Internet Protocol TV (IP-TV) or data center migration, are going to increase the amount of multicast traffic in the Internet. The support of multicast directly in the optical domain, instead of at the IP layer, is a target for reducing the amount of optical-electronic-optical conversions (thus, the network operational and capital expenditure) and energy consumption...
An integrable all-optical clocked D type flip-flop is demonstrated exploiting SOA-based transparent all-optical SR latch. Nonlinear effects of four wave mixing and cross gain modulation are used for optical logic gate operations.
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