Abstract

Since Ikegami and Suematsu¹ reported the existence of resonancelike phenomena in direct semiconductor laser modulation, it has been assumed that the maximum modulation frequency is approximately the resonancelike frequency f_r. Some other modulation methods, however,^2–4 are hoping to achieve fast switching beyond the resonancelike frequency f_r as schematically shown in Fig. 1. The maximum modulation frequencies for these schemes were preliminarily calculated using simple rate equations.⁵ The purpose of this paper is to clarify the ultrahigh-speed modulation capability of parametric modulation of semiconductor lasers.

© 1986 Optical Society of America