Study on optical injection locked semiconductor lasers

Abstract

Abstract. In this paper, the possibility of improved modulation characteristics of injection locking semiconductor lasers is studied numerically. first, modulation frequency characteristics of semiconductor lasers are described. The frequency response has been calculated with including optical injection effect in lasers rate equation. Then, the effect of injection ratio, frequency detuning, injection coefficient and injection current are evaluated. The results of calculations show that these factors have an effective role in improved modulation characteristics of semiconductor lasers.