Optical soliton transmission with n-ary PPM

Robert A. Cryan; Rodney T. Unwin

doi:10.1117/12.139320

17 December 1992 Optical soliton transmission with n-ary PPM

Robert A. Cryan, Rodney T. Unwin

Proceedings Volume 1787, Multigigabit Fiber Communications; (1992) https://doi.org/10.1117/12.139320
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

In n-ary PPM, a single high energy pulse is used to convey M bits of information. In this paper we propose that advantage be taken of the fiber non-linearity such that the n-ary PPM pulse becomes a temporal soliton. We examine the maximum achievable bit rate of such a system and compare it to that of PCM. We show that under ideal conditions (no fluctuations of the input soliton pulse width) n-ary PPM can be used to achieve a higher bit-rate than PCM. However, in a practical situation fluctuations of the input soliton pulse width are translated to variations in the soliton pulse position. We show that this has a severe effect on the error probability of n-ary PPM and that in this situation PCM offers greater immunity. Finally, we consider the implications of the Gordon-Haus effect on the maximum transmission distance of n-ary PPM and show that it is less than that for PCM due to the narrower pulse arrival time window.

Citation Download Citation

Robert A. Cryan and Rodney T. Unwin "Optical soliton transmission with n-ary PPM", Proc. SPIE 1787, Multigigabit Fiber Communications, (17 December 1992); https://doi.org/10.1117/12.139320

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