We investigate the use of a single integrated semiconductor optical amplifier (SOA)/distributed feedback DFB) laser to perform both all-optical wavelength conversion and simultaneous pilot tone replacement/monitoring at the SONET/SDH bit rate of 2.488Gb/s (STM-I6). It is also demonstrated that reamplification and reshaping regeneration of the optical signal is possible under certain conditions.
Stephens, M. F. C., Bainbridge, J. D., Owen, M., Penty, R. V., White, I. H., & Fice, M. J. (1998). A technique for wavelength converting a 2.488Gb/s signal whilst simultaneously monitoring and replacing a wavelength identifying pilot tone. Colloquium Digest - IEE , (257). https://doi.org/10.1049/ic:19980321