Abstract
Dispersion-compensation techniques designed to upgrade 1.3-µm single-mode fibers (SMF) for use in 1.55-µm optical communication systems are of great current interest. Several groups have utilized dispersion-compensating fiber with large normal dispersion at 1550 nm to equalize the anomalous dispersion in SMF for lightwave system experiments.1,2 In our research we are applying these techniques to achieve dispersion equalization for femtosecond pulse transmission, for which not only the dispersion but also the dispersion slope must be compensated.3 By using a special dispersion- compensating fiber (DCF) with favorable dispersion characteristics,4 we demonstrate nearly dispersion-free propagation of ~60-fsec pulses over >40 m of fibers. Our experiments demonstrate the use of all-fiber dispersion compensation systems at pulse widths nearly 7 times shorter and compression ratio 5 times larger than those reported previously.5
© 1996 Optical Society of America
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