M. Giaconi

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Available data from follow-up of 183 patients who survived abdominoperineal excision for cancer of the rectum are reviewed. Sixteen patients developed a peristomal hernia, but none required surgical correction for over 20 years of observation. An additional group of 50 long-survivors has been recently examined to verify whether our restrictive surgical(More)
In optical CATV systems based on subcarrier-multiplexing technique, the joint action of semiconductor laser chirp and fiber chromatic dispersion gives rise to intermodulation distortion phenomena affecting the transmission performance. This problem has been explained analytically, leading to a model valid for every kind of modulating signal and explored in(More)
Modulation Instability (MI) is a nonlinear instable phenomenon arising in dispersive fiber optics under proper conditions. When a strong pump CW is injected a perturbation, initially negligible, undergoes amplification. In this paper we derive the instable regime theoretical conditions focusing on the pump depletion. This step is neglected in most of(More)
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