Abstract

Progress in multigigabit optical fiber transmission systems has advanced significantly over the past few years. Uniform, high sensitivity, and wide bandwidth frequency modulation (FM) are essential in semiconductor laser based angular modulated coherent optical fiber communication systems. Two-electrode DFB lasers (2E-DFB) show great potentials for all the requirements mentioned above. We report in this paper a study of the FM responses of two-electrode DFB lasers vs the condition that one section (front) is biased to obtain lasing action whereas the other (back) section is moderately biased and modulated.¹

© 1989 Optical Society of America