Transmission of a Gaussian pulse in single-mode fiber systems

A formula for the calculation of the transmitted pulse shape through single-mode fiber systems has been derived by using the linear superposition method. It is then applied to the transmission of a Gaussian pulse in the systems with monochromatic, single-mode, and multilongitudinal-mode laser sources. Numerical results are obtained for the various envelopes of multilongitudinal laser spectra. Applicability of the theory to the power spectra of any shape, effects of side modes of a single-mode laser on pulse transmission, and the possibility of developing a technique for obtaining the chromatic dispersion of a fiber are pointed out.