Abstract

All-optical re-amplification and re-shaping (2R) is a key technology that enables long distance transmission of high-bit-rate data. A simple all- optical 2R scheme was proposed by Mamyshev.¹ This 2R scheme is based on self-phase-modulation (SPM) in a fiber and a subsequent optical filtering at a shifted frequency. The amplitude fluctuations in “0s” and “1s” can be effectively suppressed. Although simple in concept, several important questions need to be answered: (i) what is the optimum fiber length and dispersion, (ii) how to minimize power budget, and (iii) what is the limitation due to stimulated Brillouin scattering (SBS).

© 2002 Optical Society of America