Abstract
In 1.55-µm optical AM-VSB transmission over 1.3-µm-optimized fiber (1.3SMF) the composite second-order distortion (CSO) is significantly degraded over a transmission distance because of the positive chromatic dispersion of 1.3SMF at 1.55 µm.1 Using the transmitter with low-chirping or electrical-compensation circuits2 has been proposed for overcoming this problem. A dispersion-compensating fiber (DCF) having a large negative dispersion in the 1.55-µm band is a strong candidate for improving this CSO degradation.3 In this paper we demonstrate distortion-free 1.55-pm optical AM-VSB transmission over 1.3SMF by using a DCF. We also show an improvement in the intrinsic CSO of a transmitter by giving a negative dispersion.
© 1993 Optical Society of America
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