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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.
We demonstrate a scheme for reconfigurably selecting multiple tributaries of a 640-Gbit/s signal using cross-phase modulation in cascaded nonlinear optical loop mirrors (NOLMs). An average penalty of ~3.5 dB is introduced by each NOLM after arbitrarily selecting two 40-Gbit/s tributaries and subsequently redistributing them.
We experimentally demonstrate 40-to-320-Gbit/s phase-coherent WDM-to-TDM multiplexing based on cross-phase modulation (XPM) and subsequent 320-to-40-Gbit/s demultiplexing using XPM-induced frequency shift in highly nonlinear fibers. An average penalty of approximately 7 dB at 10-9 BER is observed after the nonlinear processes.
We experimentally demonstrate the use of continuously tunable optical parametric delay at 160-Gbit/s based on conversion/dispersion for demultiplexing a 160-Gbit/s signal to 40-Gbit/s. A 15.2 ns delay with <0.1 ps resolution is shown, which introduces 3-6 dB power penalty.
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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