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Optical chromatic dispersion compensation is achieved by analog predistortion of the signal in the microwave domain exploiting a chirped delay line at the transmitter. We designed a microwave device that guarantees high compactness of the solution and increased performance in terms of uncompensated propagation reach. Error-free, 10-Gb/s transmission over 225 km of uncompensated fiber is experimentally demonstrated without the use of coherent detection, digital equalizers, or optical dispersion compensators. [ABSTRACT FROM PUBLISHER]

A simple chromatic-dispersion compensation scheme operating in the microwave domain at the transmitter is shown. The proposed scheme avoids coherent detection by making use of a dual nested Mach-Zehnder modulator. Simulated and experimental performance results on 10-Gb/s nonreturn-to-zero signals are described. [ABSTRACT FROM PUBLISHER]

Abstract: The influence of phase modulation characteristics on Combined Amplitude-Phase Shift code performance is investigated both experimentally and by simulation. The interferometric push–pull Mach–Zehnder modulator and the linear Phase Modulator are evaluated when the optimal optical Gaussian filter is exploited. Non-optimal optical filter shape and bandwidth are considered as well. The figure of merit is the maximum distance bridged without optical dispersion compensation on a Standard Single Mode Fiber (SSMF) link. The steepness of phase transitions is critical in determining the performance of the generated CAPS. [Copyright &y& Elsevier]