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We experimentally demonstrate optical multiplexing of 40-Gbit/s channels at different wavelengths onto a single 640-Gbit/s channel and subsequent 640-to-10-Gbit/s demultiplexing using cascaded nonlinear optical loop mirrors. An average penalty of ~3.5 dB at 10-9 BER is observed after the nonlinear processes.
Optical signal processing techniques employ a wide range of devices and various nonlinearities to achieve multiple network functionalities. The choice of nonlinearity can also impact the relative efficiency, both in terms of energy and material consumption, of the signal processing function being implemented. Techniques for some of the important functionalities, wavelength multicasting, wavelength-division...
We experimentally demonstrate multiplexing of two 160-Gbit/s WDM signals to one 320-Gbit/s signal based on supercontinuum generation in a highly nonlinear fiber. Error free operation was achieved after demultiplexing the 320-Gbit/s signal to 10-Gbit/s and less than 3 dB penalty was observed.
Limitations and potentials of nonlinearities in PPLN waveguides for ultra-fast all-optical processing have been experimentally investigated. A combination of pump depletion effect and SFG+DFG have been exploited to realize 320Gb/s optical demultiplexing and wavelength conversion.
We experimentally demonstrate concatenated 4-fold 40-Gbit/s signal multicasting, 4-fold 40-to-160-Gbit/s multiplexing and subsequent 160-to-40-Gbit/s demultiplexing based on supercontinuum generation and cross-phase modulation in highly nonlinear fibers. 5-9 dB penalty at 10-9 BER was observed after the nonlinear processes.
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