Wavelength conversion of a 100Gbit/s optical time division multiplexer signal has been achieved using four wave mixing in a 2mm multiquantum well semiconductor optical amplifier and a Bragg fibre grating for filtering. Error free operation of all 10 channels was achieved with low power penalties.
Kelly, A. E., Ellis, A. D., Nesset, D., Kashyap, R., & Moodie, D. G. (1998). 100Gbit/s wavelength conversion using FWM in an MQW semiconductor optical amplifier. Electronics letters, 34(20), 1955-1956. https://doi.org/10.1049/el:19981388