Rb. Lee et al., CASCADED WAVELENGTH CONVERSION BY 4-WAVE-MIXING IN A STRAINED SEMICONDUCTOR OPTICAL AMPLIFIER AT 10 GB S/, IEEE photonics technology letters, 9(6), 1997, pp. 752-754
We demonstrate for the first time cascaded wavelength conversion by fo
ur-wave mixing in a semiconductor optical amplifier, Bit-error-rate pe
rformance of <10(-9) at 10 Gb/s is achieved for two conversions of up
to 9 nm down and up in wavelength, For two wavelength conversions of 5
nm down and up, a power penalty of 1.3 dB is measured, A system of tw
o wavelength converters spanning 40 km of single-mode fiber is also de
monstrated.