Abstract

Single-mode DFB semiconductor lasers with wide modulation bandwidth and low frequency chirp are highly desirable for high-speed and long-haul optical telecommunication systems.¹ The recently proposed push-pull DFB lasers have displayed many promising features for progress in that direction (see Fig. 1). Numerical work alone cannot give sufficient insight in device operation. Using the spatially-dependent multimode rate equations for the modal field amplitudes.

© 1996 Optical Society of America