@article{3074268, title = "Direct modulation properties of 1.55-μ InGaAsP/InP microring lasers", author = "Mikroulis, S. and Roditi, E. and Syvridis, D.", journal = "Journal of Lightwave Technology", year = "2008", volume = "26", number = "2", pages = "251-256", issn = "0733-8724, 1558-2213", doi = "10.1109/JLT.2007.909907", keywords = "Light extinction; Mathematical models; Q factor measurement; Semiconducting indium compounds; Semiconductor lasers, Direct modulation; Extinction ratio; Microring laser; Multimode rate equation model, Light modulation", abstract = "The modulation properties of 1.55-μ InGaAsP/InP microring lasers are investigated using a multimode rate equation model. A detailed study, with respect to Q-factor and extinction ratio calculations, is carried out as a function of different microring's key design and operating parameters. The modulator's performance study shows the possibility for a successful operation at a bit rate of 2.4 Gb/s for radii between 30 and 50 μ and proper values for the bus waveguide reflectivity. © 2008 IEEE." }