50 research outputs found

    Four-channel all-fibre dispersion-managed 2R regenerator

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    We experimentally investigate a dispersion managed four-channel 2R regenerator that relies on self-phase modulation-induced spectral broadening and offset filtering at four shifted wavelengths. The device consists of several alternating sections of dispersion compensating fibres (DCF) and single mode fibres (SMF). Due to this arrangement and the use of low duty-cycle return-to-zero (RZ) pulses nonlinear interchannel effects are sufficiently mitigated resulting in almost no additional degradation compared to the single-channel case

    Repetition rate multiplication of pseudorandom bit sequences

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    Performance studies of multi-wavelength all-optical 2R regeneration subsystems based on highly non-linear fibers

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    DPSK regeneration at 40 Gb/s and beyond using a fiber-sagnac interferometer

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    All-optical RZ-to-NRZ conversion of advanced modulated signals

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    Dual-user wireless heterogeneous services over a single optical carrier using optical frequency multiplication

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