Impact of Temperature on Spatial Hole Burning and Modulation Bandwidth of Reflective Semiconductor Optical Amplifiers
Self-Seeded RSOA transmitters are a possible implementation of wavelength division multiplexing (WDM) passive optical networks (PON). Although good results were obtained , their cost and power consumption are still an issue. To improve these performances, the RSOA should operated in an uncooled or a semi-uncooled regime and thus avoiding the use of a thermo electric cooler (TEC). Some solutions have been proposed. Performances up to 85°C were obtained but modulation speeds were below 2,5 Gbit/s and electronic equalization as well as current controller were used. In this paper, we present a RSOA in the C band operating at 10 Gbit/s and a RSOA in the O band operating at 5 Gbit/S up to 60°C. By measuring the spontaneous emission, we explain why C band is faster than the O band.