Wavelength switching performance of single-and dual-contact two-mode semiconductor lasers with current modulation

摘要

The wavelength switching performance of single-and dual-contact two-mode semiconductor lasers is studied. These devices are characterized experimentally in terms of switching time, frequency chirp, contrast ratio and current modulation amplitude. Models based on multimode rate equations are used for reproducing these experimental results with good agreement between theory and experiment. The benefits of a dual-contact device are shown with respect to a single-contact device.