Abstract
High-speed transmission systems using directly modulated DFB semiconductor lasers over single-mode fibers are limited by the combined effects of laser chirp and chromatic dispersion.1,2 The penalty can be severe when a 1550-nm source is used for transmission over conventional of 1310-nm zero dispersion single-mode fiber (SMF). Previously,3 we have demonstrated dispersionless transmission of gain switched chirped laser pulses at 1310 nm in a dispersion shifted single-mode fiber (DS-SMF) by pulse compression. In this chirped pulse transmission scheme originally proposed in 1984,1 the negative dispersion of the fiber in the system operating wavelength region is used to compensate for the red-shift chirp during the pulse, resulting in pulse compression and subsequent rebroadening in the fiber.
© 1992 Optical Society of America
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